Self-diagnosis test system and method for blowout preventer control device

Abstract

The invention discloses a self-diagnosis test system and method for a blowout preventer control device. The system comprises: a controller; the manifold electric unloading valve is arranged on the manifold; the energy accumulator pressure transmitter is arranged on the energy accumulator; the relay is arranged in a motor control loop; the fifteenth electromagnetic valve is connected with the air pump air-driven ball valve; the air pump air-driven ball valve controls the air pump to connect and disconnect an air source; the controller is used for controlling the manifold electric unloading valve to be opened to enable the energy accumulator to release pressure, controlling the manifold electric unloading valve to be closed, controlling the relay to be connected, controlling the fifteenth electromagnetic valve to open the air pump air-driven ball valve to enable the air pump to be connected with the air source after detecting that the pressure signal of the energy accumulator pressure transmitter reaches 0 MPa, and controlling the relay to be connected with the air source after detecting that the pressure signal of the energy accumulator pressure transmitter reaches 0 MPa. And the boosting time of the energy accumulator pressure transmitter is detected, and after a pressure signal reaches the rated pressure of the system, the relay is controlled to be closed, and the fifteenth electromagnetic valve is controlled to drive the air pump gas-driven ball valve to be closed. The blowout preventer control device can be self-checked regularly on a drilling crew site, and well control safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of oil drilling and well control devices, and in particular to a self-diagnosis test system and method for a blowout preventer control device. Background Art

[0002] The BOP control device is an important well control device that controls the wellhead BOP group and the hydraulic throttle valve and well-killing valve. Maintaining the normal function of the BOP control device and the reliability of the components is an important guarantee for drilling safety. Each oil field has well control management requirements. The BOP control devices that meet the conditions should be returned to the well control workshop regularly for pressure testing and functional testing. For well teams located in remote locations or in foreign countries, they do not have the conditions to return to the well control workshop for testing. It is necessary to arrange professional well control equipment maintenance personnel to go to the well regularly to perform pressure testing and functional testing of the equipment. Summary of the invention

[0003] In order to enrich the testing methods of a blowout preventer control device and increase the selection space of the testing methods, the present invention provides a self-diagnosis testing system and method for a blowout preventer control device.

[0004] In a first aspect, an embodiment of the present invention provides a self-diagnosis test system for a blowout preventer control device, comprising:

[0005] Controller;

[0006] A manifold electric unloading valve provided on the manifold of the blowout preventer control device;

[0007] an accumulator pressure transmitter provided in the accumulator of the blowout preventer control device;

[0008] A relay disposed in a motor control circuit of the blowout preventer control device, wherein the motor control circuit controls a motor for driving a crankshaft plunger pump;

[0009] A fifteenth solenoid valve connected to the air pump air drive ball valve of the blowout preventer control device; the air pump air drive ball valve controls the air pump to turn on and off the air source;

[0010] The controller is used to control the manifold electric unloading valve to open to release the accumulator pressure, and after detecting that the pressure signal of the accumulator pressure transmitter reaches 0MPa, control the manifold electric unloading valve to close, control the relay to turn on, start the motor to drive the crankshaft plunger pump to pressurize, and at the same time, control the fifteenth solenoid valve to open the air pump air-driven ball valve to connect the air pump to the air source, and detect the pressure rise time of the accumulator pressure transmitter, and after the pressure signal reaches the system rated pressure, control the relay to close and control the fifteenth solenoid valve to drive the air pump air-driven ball valve to close.

[0011] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further includes:

[0012] A flow meter provided on the manifold of the blowout preventer control device, for detecting the flow of the crankshaft plunger pump;

[0013] The controller is also used to control the manifold electric unloading valve to open to release the accumulator pressure, and after detecting that the pressure signal of the accumulator pressure transmitter reaches 0MPa, control the manifold electric unloading valve to close, control the relay to turn on, start the motor to drive the crankshaft plunger pump to pressurize, and detect the boost time of the accumulator pressure transmitter, and control the relay to close after the pressure signal reaches the system rated pressure; and during the boost process, detect whether the flow rate of the flow meter exceeds the preset rated flow value.

[0014] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the controller is also used to control the manifold electric unloading valve to open to relieve the accumulator pressure, control the manifold electric unloading valve to close after detecting that the pressure signal of the accumulator pressure transmitter reaches 0 MPa, control the fifteenth solenoid valve to open the air pump air-driven ball valve to connect the air pump to the air source, and detect the pressure rise time of the accumulator pressure transmitter, and control the fifteenth solenoid valve to drive the air pump air-driven ball valve to close after the pressure signal reaches the system rated pressure.

[0015] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the controller is also used to control the manifold electric unloading valve to open to release the accumulator pressure, and when the pressure signal of the accumulator pressure transmitter is detected to be lower than 90% of the system rated pressure, the control relay is turned on to start the motor to drive the crankshaft plunger pump to pressurize, and after the pressure signal of the accumulator pressure transmitter reaches the system rated pressure, the control relay is turned off.

[0016] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the controller is also used to control the manifold electric unloading valve to open to relieve the accumulator pressure, and when it is detected that the pressure signal of the accumulator pressure transmitter AI1 is lower than 85% of the system rated pressure, the fifteenth solenoid valve is controlled to open the air pump air-driven ball valve to connect the air pump to the air source, and after the pressure signal reaches the system rated pressure, the fifteenth solenoid valve is controlled to drive the air pump air-driven ball valve to close.

[0017] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the manifold of the blowout preventer control device is connected to a relief valve;

[0018] The controller is also used to control the relay to turn on, so that the motor starts and drives the crankshaft plunger pump to pressurize, and to detect when the pressure signal of the accumulator pressure transmitter reaches 110% of the system rated pressure. After the control relay is turned off, it continuously detects whether the pressure signal of the accumulator pressure transmitter during the overflow process of the overflow valve is lower than 90% of the system rated pressure.

[0019] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further includes:

[0020] A seventh solenoid valve connected to the annular air motor pressure regulating valve of the blowout preventer control device;

[0021] The controller is also used to control the seventh solenoid valve to connect the annular air motor pressure regulating valve to ventilate the air motor air inlet of the air motor that reduces pressure, and to control the pressure to be stable for a first preset time at preset pressure intervals according to the detected pressure signal of the annular pressure transmitter until the pressure drops to 0MPa, and to control the seventh solenoid valve to connect the annular air motor pressure regulating valve to ventilate the air motor air inlet of the air motor that increases pressure, and to control the pressure to be stable for a first preset time at preset pressure intervals according to the detected pressure signal of the annular pressure transmitter until the pressure reaches the rated pressure of the system.

[0022] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further includes:

[0023] A fourteenth solenoid valve connected to the manifold air motor pressure regulating valve of the blowout preventer control device;

[0024] The controller is also used to control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to reduce the pressure of the air motor inlet ventilation, and according to the detected pressure signal of the manifold pressure transmitter, control the pressure to be stable for a first preset time at a preset pressure interval until the pressure drops to 0MPa, and control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to increase the pressure of the air motor inlet ventilation, and according to the detected pressure signal of the annular pressure transmitter, control the pressure to be stable for a first preset time at a preset pressure interval until the pressure reaches the rated pressure of the system.

[0025] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further comprises: a sixteenth solenoid valve connected to the air source of the blowout preventer control device, a first solenoid valve and an eighth solenoid valve connected to the cylinder of a two-position three-way bypass valve of the blowout preventer control device;

[0026] The controller is further used to control the sixteenth solenoid valve and the eighth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the two-position three-way bypass valve cylinder of the blowout preventer control device through the pipeline, the two-position three-way bypass valve closes, and the input digital signal of the bypass valve closing position switch is detected to determine whether the two-position three-way bypass valve reaches the preset closing position, and to control the sixteenth solenoid valve and the first solenoid valve to close for the second preset time, so that the air source enters the opening chamber of the two-position three-way bypass valve cylinder of the blowout preventer control device through the pipeline, the two-position three-way bypass valve opens, and the input digital signal of the bypass valve opening position switch is detected to determine whether the two-position three-way bypass valve reaches the preset opening position.

[0027] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further comprises: a sixth solenoid valve and a ninth solenoid valve connected to the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device;

[0028] The controller is further used to control the sixteenth solenoid valve and the ninth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the annular three-position four-way rotary valve closes, and the input digital signal of the annular three-position four-way rotary valve closing position switch is detected to determine whether the annular three-position four-way rotary valve reaches the preset closing position, and to control the sixteenth solenoid valve and the sixth solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the annular three-position four-way rotary valve opens, and the input digital signal of the annular three-position four-way rotary valve opening position switch is detected to determine whether the annular three-position four-way rotary valve reaches the preset opening position.

[0029] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further comprises: a fifth solenoid valve and a tenth solenoid valve connected to the upper semi-sealed three-position four-way rotary valve remote control cylinder of the blowout preventer control device;

[0030] The controller is also used to control the sixteenth solenoid valve and the tenth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the upper half-sealed three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the upper half-sealed three-position four-way rotary valve closes, and the input digital signal of the upper half-sealed closed position switch is detected to determine whether the upper half-sealed three-position four-way rotary valve reaches the preset closed position, and control the sixteenth solenoid valve and the fifth solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the upper half-sealed three-position four-way rotary valve opens, and the input digital signal of the upper half-sealed open position switch is detected to determine whether the upper half-sealed three-position four-way rotary valve reaches the preset open position.

[0031] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further includes:

[0032] A fourth solenoid valve and an eleventh solenoid valve connected to the fully sealed / shear three-position four-way rotary valve remote control cylinder of the blowout preventer control device;

[0033] The controller is also used to control the sixteenth solenoid valve and the eleventh solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the fully sealed / shear three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the fully sealed / shear three-position four-way rotary valve closes, and detects the input digital signal of the fully sealed / shear closed position switch to determine whether the fully sealed / shear three-position four-way rotary valve reaches the preset closed position, and controls the sixteenth solenoid valve and the fourth solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the fully sealed / shear three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the fully sealed / shear three-position four-way rotary valve opens, and detects the input digital signal of the fully sealed / shear open position switch to determine whether the fully sealed / shear three-position four-way rotary valve reaches the preset open position.

[0034] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further comprises: a third solenoid valve and a twelfth solenoid valve connected to a remote control cylinder of a lower semi-sealed three-position four-way rotary valve of the blowout preventer control device;

[0035] The controller is also used to control the sixteenth solenoid valve and the twelfth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the remote control cylinder of the lower semi-sealed three-position four-way rotary valve of the blowout preventer control device through the pipeline, the lower semi-sealed three-position four-way rotary valve closes, and the input digital signal of the lower semi-sealed closed position switch is detected to determine whether the lower semi-sealed three-position four-way rotary valve reaches the preset closed position, and to control the sixteenth solenoid valve and the third solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the remote control cylinder of the lower semi-sealed three-position four-way rotary valve of the blowout preventer control device through the pipeline, the lower semi-sealed three-position four-way rotary valve opens, and the input digital signal of the lower semi-sealed closed position switch is detected to determine whether the lower semi-sealed three-position four-way rotary valve reaches the preset open position.

[0036] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further comprises: a second solenoid valve and a thirteenth solenoid valve connected to a remote control cylinder of a three-position four-way rotary valve of a hydraulic valve of the blowout preventer control device;

[0037] The controller is also used to control the sixteenth solenoid valve and the thirteenth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the hydraulic valve's three-position four-way rotary valve remote control cylinder through the pipeline, the hydraulic valve's three-position four-way rotary valve closes, and detects the input digital signal of the hydraulic valve closing position switch to determine whether the hydraulic valve's three-position four-way rotary valve has reached the preset closing position, and controls the sixteenth solenoid valve and the second solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the hydraulic valve's three-position four-way rotary valve remote control cylinder through the pipeline, the hydraulic valve's three-position four-way rotary valve opens, and detects the input digital signal of the lower half closing position switch to determine whether the hydraulic valve's three-position four-way rotary valve has reached the preset opening position.

[0038] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the controller is further used to control the sixteenth solenoid valve and the first solenoid valve to close for a second preset time, so that the gas source enters the opening chamber of the two-position three-way bypass valve cylinder through the pipeline, the two-position three-way bypass valve opens, the control relay is turned on, the motor starts to drive the crankshaft plunger pump to pressurize, and at the same time, after detecting the pressure signal of the accumulator pressure transmitter to the system rated pressure, the first solenoid valve, the sixth solenoid valve, the fifth solenoid valve, the fourth solenoid valve, the third solenoid valve and the second solenoid valve are controlled to be turned on, so that the two-position three-way bypass valve, the annular three-position four-way rotary valve, the upper half-sealed three-position four-way rotary valve, the fully sealed / sheared three-position four-way rotary valve, the lower half-sealed three-position four-way rotary valve and the hydraulic valve three-position four-way rotary valve are all operated to the open position, and after being stationary for a third preset time, the pressure signal of the manifold pressure transmitter is detected to determine whether the system pressure drop is less than the first preset pressure drop threshold;

[0039] as well as,

[0040] Keep the accumulator pressure transmitter at the system rated pressure, control the eighth solenoid valve, the ninth solenoid valve, the tenth solenoid valve, the eleventh solenoid valve, the twelfth solenoid valve and the thirteenth solenoid valve to be connected, so that the two-position three-way bypass valve, the annular three-position four-way rotary valve, the upper half-sealed three-position four-way rotary valve, the fully sealed / shear three-position four-way rotary valve, the lower half-sealed three-position four-way rotary valve and the hydraulic valve three-position four-way rotary valve are all operated to the closed position, and after being stationary for a third preset time, detect the pressure signal of the manifold pressure transmitter to determine whether the system pressure drop is less than the first preset pressure drop threshold.

[0041] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the controller is also used to control the sixteenth solenoid valve and the eighth solenoid valve to close for a second preset time after the test is completed, so that the air source enters the closing chamber of the two-position three-way bypass valve cylinder through the pipeline, and the two-position three-way bypass valve is closed.

[0042] In one or some optional embodiments, the self-diagnostic test system of the blowout preventer control device further includes a first alarm;

[0043] The controller is also used to control the opening of the manifold electric unloading valve, and after detecting that the pressure signal of the accumulator pressure transmitter is lower than the preset accumulator pressure alarm value, control the first alarm to sound an alarm, and control the closing of the manifold electric unloading valve and control the relay to turn on so that the motor starts and drives the crankshaft plunger pump to pressurize until it is detected that the pressure signal of the accumulator pressure transmitter reaches the system rated pressure.

[0044] In one or some optional embodiments, the self-diagnostic test system of the blowout preventer control device further includes a second alarm;

[0045] The controller is also used to control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to the air motor air inlet for ventilation, so that the 1-manifold air motor pressure regulating valve performs a pressure reducing action, detects that the pressure signal of the manifold pressure transmitter is lower than the preset manifold pressure alarm value, controls the second alarm to sound an alarm, and controls the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to the air motor air inlet for ventilation, so that the manifold air motor pressure regulating valve performs a pressure increasing action, until the pressure signal of the manifold pressure transmitter reaches the system rated pressure.

[0046] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further includes a third alarm;

[0047] The controller is also used to control the seventh solenoid valve to connect the annular air motor pressure regulating valve to the air motor air inlet ventilation for decompression, so that the annular air motor pressure regulating valve performs a decompression action, detect that the pressure signal of the annular pressure transmitter is lower than a preset annular pressure alarm value, control the third alarm to sound an alarm, and control the seventh solenoid valve to connect the annular air motor pressure regulating valve to the air motor air inlet ventilation for pressurization, so that the annular air motor pressure regulating valve performs a pressurization action, until the pressure signal of the annular pressure transmitter is detected to reach the system rated pressure.

[0048] In one or some optional embodiments, the self-diagnostic test system of the blowout preventer control device further comprises an AC voltage transmitter connected to a motor control circuit of the blowout preventer control device;

[0049] The controller is also used to monitor the voltage signal of the AC voltage transmitter to determine whether the voltage signal value is within a preset rated voltage range.

[0050] In one or some optional embodiments, the self-diagnostic test system of the blowout preventer control device further comprises an air source pressure transmitter connected to an air source of the blowout preventer control device;

[0051] The controller is also used to monitor the pressure signal of the gas source pressure transmitter to determine whether the pressure signal is within a preset pressure range.

[0052] In one or some optional embodiments, the self-diagnostic test system of the blowout preventer control device further comprises a level transmitter disposed in the oil tank of the blowout preventer control device;

[0053] The controller is also used to control the manifold electric unloading valve to open so that the accumulator is depressurized to 0 MPa, and detect whether the liquid level signal of the liquid level transmitter is in a preset liquid level range.

[0054] In one or some optional embodiments, the self-diagnostic test system of the blowout preventer control device further comprises a temperature transmitter disposed on the blowout preventer control device;

[0055] The controller is also used to monitor the temperature signal of the temperature transmitter.

[0056] In one or some optional embodiments, the self-diagnosis test system of the blowout preventer control device further includes an accumulator nitrogen charging pressure transmitter correspondingly arranged on the upper part of each accumulator of the blowout preventer control device;

[0057] The controller is also used to monitor the pressure signal of the accumulator nitrogen charging pressure transmitter to determine whether the pressure signal is within a preset rated pressure range.

[0058] In one or some optional embodiments, in the self-diagnosis test system of the blowout preventer control device, the controller includes a main processor, a slave station, and a digital input module, a digital output module, and an analog input module connected to the main processor;

[0059] The master processor is communicatively connected to the slave station.

[0060] In a second aspect, an embodiment of the present invention provides a self-diagnosis test method for a blowout preventer control device, using the self-diagnosis test system for the blowout preventer control device described in the first aspect above.

[0061] The beneficial effects of the above technical solution provided in the embodiments of the present invention include at least:

[0062] The self-diagnosis test system of the blowout preventer control device provided in the embodiment of the present invention can realize regular self-inspection of the blowout preventer control device at the well team site, automatically generate a test report, analyze abnormal conditions of the test results, and make maintenance, repair and replacement suggestions for faulty components based on the test results to ensure well control safety. It solves the current need for the blowout preventer control device to be regularly returned to the well control workshop or for professional well control inspection personnel to regularly go up to the well for inspection, which can improve the inspection efficiency and the reliability of the well control equipment. The system has a simple and clear structure, simple operation, and is easy to promote, with excellent application prospects.

[0063] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0064] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0066] Figure 1 A schematic diagram of the system hydraulic principle structure of a self-diagnosis test system for a blowout preventer control device provided in an embodiment of the present invention;

[0067] Figure 2 A control logic diagram of a self-diagnosis test system for a blowout preventer control device provided in an embodiment of the present invention;

[0068] Figure 3 This is a power supply schematic diagram of a motor starting and control system provided in an embodiment of the present invention.

[0069] In the figure:

[0070] 100 is a controller;

[0071] 1 is the manifold air motor pressure regulating valve, 2 is the accumulator nitrogen charging pressure transmitter, 3 is the accumulator, 4 is the two-position three-way bypass valve, 5 is the two-position three-way bypass valve cylinder, 6 is the manifold electric unloading valve, 7 is the hydraulic valve three-position four-way rotary valve, 8 is the three-position four-way rotary valve position switch, 9 is the hydraulic valve three-position four-way rotary valve remote control cylinder, 10 is the lower half-sealed three-position four-way rotary valve, 11 is the lower half-sealed three-position four-way rotary valve remote control cylinder, 12 is the fully sealed / shear three-position four-way rotary valve, 13 is the fully sealed / shear three-position four-way rotary valve remote control cylinder, 14 is the accumulator pressure transmitter, 15 is the upper half-sealed three-position four-way rotary valve, 16 is the manifold pressure transmitter, 17 is the upper half-sealed three-position four-way rotary valve remote control cylinder, 18 is the annular pressure transmitter, 19 is the annular air motor pressure regulating valve, 20 is the annular three-position four-way rotary valve, The rotary valve, 21 is an annular three-position four-way rotary valve remote control cylinder, 22 is the first solenoid valve, 23 is the second solenoid valve, 24 is the third solenoid valve, 25 is the fourth solenoid valve, 26 is the fifth solenoid valve, 27 is the sixth solenoid valve, 28 is the seventh solenoid valve, 29 is the eighth solenoid valve, 30 is the ninth solenoid valve, 31 is the tenth solenoid valve, 32 is the eleventh solenoid valve, 33 is the twelfth solenoid valve, 34 is the thirteenth solenoid valve, 35 is the fourteenth solenoid valve, 36 is the fifteenth solenoid valve, 37 is the sixteenth solenoid valve, 38 is the air source, 39 is the air source processing element, 40 is the air source pressure transmitter, 41 is the air pump air-driven ball valve, 42 is the air pump, 43 is the liquid level transmitter, 44 is the electric motor, 45 is the crankshaft piston pump, 46 is the flow meter, and 47 is the overflow valve. DETAILED DESCRIPTION

[0072] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0073] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", "far", "near", "front", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] The inventors have found that for well crews located in remote locations or in foreign countries, when the blowout preventer control device needs to perform regular self-inspection, it is neither convenient nor economical to return to the well control workshop regularly for pressure testing and functional testing, or to arrange professional well control equipment maintenance personnel to regularly go up the well to perform pressure testing and functional testing of the equipment. Therefore, how to achieve regular self-inspection of the blowout preventer control device, automatically provide test reports, and make fault component analysis suggestions based on the test results to improve the reliability of well control equipment is a problem that urgently needs to be solved in this field.

[0076] Based on this, an embodiment of the present invention provides a self-diagnosis test system and method for a blowout preventer control device, which will be described in detail below through specific embodiments.

[0077] Embodiment 1

[0078] The embodiment of the present invention provides a self-diagnosis test system for a blowout preventer control device, referring to Figure 1-Figure 3 As shown, including:

[0079] Controller 100;

[0080] A manifold electric unloading valve 6 provided on the manifold of the blowout preventer control device;

[0081] An accumulator pressure transmitter 14 provided in the accumulator 3 of the blowout preventer control device;

[0082] A relay provided in a motor control circuit of the blowout preventer control device, wherein the motor control circuit controls an electric motor 44 for driving a crankshaft plunger pump 45;

[0083] A fifteenth solenoid valve 36 connected to the air pump air drive ball valve 41 of the blowout preventer control device; the air pump air drive ball valve 41 controls the air pump 42 to turn on and off the air source 38;

[0084] The controller 100 is used to control the manifold electric unloading valve 6 to open to release the pressure of the accumulator 3. After detecting that the pressure signal of the accumulator pressure transmitter 14 reaches 0 MPa, the controller 100 controls the manifold electric unloading valve 6 to close, controls the relay to turn on, starts the motor 44 to drive the crankshaft piston pump 45 to pressurize, and at the same time, controls the fifteenth solenoid valve 36 to open the air pump air drive ball valve 41 to connect the air pump 42 to the air source 38, and detects the pressure rise time of the accumulator pressure transmitter 14, and after the pressure signal reaches the system rated pressure, controls the relay to close and controls the fifteenth solenoid valve 36 to drive the air pump air drive ball valve 41 to close.

[0085] Reference Figures 1 to 3 As shown, in the embodiment of the present invention, the controller 100 may include a main processor, a slave station, and a digital input module, a digital output module, and an analog input module connected to the main processor; wherein the main processor may be Figure 2 The master CPU shown, the slave can be Figure 2 The slave station human-machine interface industrial computer shown in the figure, the main processor and the slave station industrial computer communicate through PROFIBUS. Of course, in some other embodiments, the slave station can also be implemented by other devices such as tablet computers and laptops with human-machine interfaces, and the communication method between the main processor and the slave station can also adopt other communication methods of the prior art, such as PROFINET. In this regard, no specific limitation is made in the embodiments of the present invention.

[0086] In a specific embodiment, referring to Figure 1 As shown, the blowout preventer control device can be a FKDQ640-5 blowout preventer control device, and the controller 100 can be a remote control console. The master station CPU of the remote control console can adopt Siemens controller S7300 series 313C-2DP, connect 1 32DI, 1 32DO, and two 8AI modules as the master station of the system. In addition to the traditional driller console, the slave station adds a slave station industrial computer as a human-machine interface. The slave station industrial computer can integrate RJ-45 interface, COM interface, USB, Type-C interface, perform one-button self-diagnosis in the human-machine interface, complete the pressure test and function test of the system, and form a test report, and export the data through the external interface or directly transmit it to the PetroChina drilling remote support system (RTOC) for centralized management. Of course, in some other embodiments, the master station CPU can also adopt other types or models of CPUs in the prior art, and those skilled in the art can choose according to actual conditions, which will not be repeated here.

[0087] Reference Figure 3As shown in FIG. 1 , as a specific implementation of an embodiment of the present invention, the motor 44 of the blowout preventer control device is started and stopped by a motor control circuit, wherein the relay KA1 is connected to the contactor KM of the motor control circuit to control the contactor KM to be attracted so that the motor 44 is powered on and started. Figure 3 As shown, the motor 44 is connected to the switch QF and the contactor KM through a three-phase electrical connection, and the motor control circuit includes an uninterruptible power supply UPS, a thermal relay FR, a contactor KM, a relay KA1, a transformer, and fuses FU1 and FU2. The specific circuit connection method and component models can be selected by those skilled in the art according to actual conditions, and will not be described in detail here.

[0088] like Figure 1 As shown, in the embodiment of the present invention, the first solenoid valve 22 is a two-position three-way solenoid valve with bypass opening remote control, the second solenoid valve 23 is a two-position three-way solenoid valve with hydraulic valve opening remote control, the third solenoid valve 24 is a two-position three-way solenoid valve with lower half closed opening remote control, the fourth solenoid valve 25 is a two-position three-way solenoid valve with full closed / shear open remote control, the fifth solenoid valve 26 is a two-position three-way solenoid valve with upper half closed opening remote control, the sixth solenoid valve 27 is a two-position three-way solenoid valve with annular opening remote control, the seventh solenoid valve 28 is a three-position five-way solenoid valve with annular air motor pressure regulating valve remote control, and the eighth solenoid valve 29 is a two-position three-way solenoid valve with bypass closing remote control The ninth solenoid valve 30 is a two-position three-way solenoid valve remotely controlled for annular closing, the tenth solenoid valve 31 is a two-position three-way solenoid valve remotely controlled for upper half sealing closing, the eleventh solenoid valve 32 is a two-position three-way solenoid valve remotely controlled for full sealing / shear closing, the twelfth solenoid valve 33 is a two-position three-way solenoid valve remotely controlled for lower half sealing closing, the thirteenth solenoid valve 34 is a two-position three-way solenoid valve remotely controlled for hydraulic valve closing, the fourteenth solenoid valve 35 is a three-position five-way solenoid valve remotely controlled for the manifold air motor pressure regulating valve, the fifteenth solenoid valve 36 is a three-position five-way solenoid valve for the switch operation of the air pump air-driven ball valve, and the sixteenth solenoid valve 37 is a two-position three-way solenoid valve for the total air source.

[0089] When the total flow test of the pump system is carried out, the controller 100 controls the manifold electric unloading valve 6, that is, Figure 2 The electric unloading valve DO0.0 in the manifold is opened to release the pressure to the accumulator pressure transmitter 14, that is, Figure 2 After the accumulator pressure transmitter AI1 in the accumulator reaches 0MPa, the controller 100 controls the manifold electric unloading valve 6 to close, and the relay KA1 of the motor control circuit, that is, Figure 2 The electrode control circuit KA1 coil DO0.1 in the electrode control circuit is turned on, the motor 44 starts to drive the crankshaft plunger pump 45 to pressurize, and the controller 100 controls the fifteenth solenoid valve 36, that is, Figure 2 The air pump air drive ball valve switch operates the open position DO0.2 of the three-position five-way solenoid valve, the air pump air drive ball valve 41 is connected to the air source 38 supplied by the air pump 42, and the controller 100 monitors the accumulator pressure transmitter 14, that is, Figure 2The pressure signal of the accumulator pressure transmitter AI1 is transmitted until the system pressure rises to the rated pressure of the system, and then the fifteenth solenoid valve 36 is controlled, that is, Figure 2 The air pump air drive ball valve switch operates the three-position five-way solenoid valve to close position DO0.3, the air source 38 is disconnected, and the control motor control circuit KA1 coil DO0.1 is disconnected, and the motor 44 stops. Record the system boost time. The total boost time of the FKDQ640-5 BOP control device in this solution must be less than 15 minutes.

[0090] In one embodiment, the self-diagnosis test system of the blowout preventer control device further comprises:

[0091] A flow meter 46 provided on the manifold of the blowout preventer control device is used to detect the flow of the crankshaft plunger pump 45;

[0092] The controller 100 is also used to control the manifold electric unloading valve 6 to open to release the pressure of the accumulator 3, and after detecting that the pressure signal of the accumulator pressure transmitter 14 reaches 0MPa, control the manifold electric unloading valve 6 to close, control the relay to turn on, start the motor 44 to drive the crankshaft plunger pump 45 to pressurize, and detect the boost time of the accumulator pressure transmitter 14, and control the relay to close after the pressure signal reaches the system rated pressure; and during the boost process, detect whether the flow of the flow meter 46 exceeds the preset rated flow value.

[0093] When conducting the flow test of the electric pump system, the controller 100 controls the electric unloading valve 6 of the manifold to open, and after the pressure is released to the accumulator pressure transmitter 14 at 0 MPa, the controller 100 controls the electric unloading valve 6 of the manifold to close, and the relay KA1 connected to the motor control circuit is turned on, the motor 44 starts to drive the crankshaft piston pump 45 to pressurize, and the controller 100 monitors the accumulator pressure transmitter 14 to raise the system pressure to the system rated pressure, and then the relay KA1 is disconnected and the motor 44 stops. Record the system pressure increase time. In this scheme, the pressure increase time of the FKDQ640-5 blowout preventer control device must be less than 30 minutes. In addition, the controller 100 uses the flow meter 46 installed on the manifold, that is, Figure 2 The flow meter AI7 in the apparatus detects the flow of the crankshaft piston pump 45, and compares the monitored flow with the preset rated flow value. If the difference is greater than 10%, an abnormality is indicated.

[0094] In one embodiment, in the self-diagnosis test system of the blowout preventer control device, the controller 100 is further used to control the manifold electric unloading valve 6 to open to release the pressure of the accumulator 3, control the manifold electric unloading valve 6 to close after detecting that the pressure signal of the accumulator pressure transmitter 14 reaches 0 MPa, control the fifteenth solenoid valve 36 to open the air pump air drive ball valve 41 to connect the air pump 42 to the air source 38, and detect the pressure rise time of the accumulator pressure transmitter 14, and control the fifteenth solenoid valve 36 to drive the air pump air drive ball valve 41 to close after the pressure signal reaches the system rated pressure.

[0095] When the air pump 42 system flow test is performed: the controller 100 controls the manifold electric unloading valve 6 to open, and after the pressure is released to the accumulator pressure transmitter 14 is 0 MPa, the controller 100 controls the manifold electric unloading valve 6 to close, and the controller 100 controls the fifteenth solenoid valve 36, that is, Figure 2 The air pump air drive ball valve switch operates the open position DO0.2 of the three-position five-way solenoid valve, and the air pump air drive ball valve 41 is connected to the air source 38 of the air pump 42. The controller 100 monitors the pressure signal of the accumulator pressure transmitter 14 until the system pressure rises to the system rated pressure, and then controls the fifteenth solenoid valve 36, that is, Figure 2 The air pump air drive ball valve switch operates the three-position five-way solenoid valve to close position DO0.3, the air source 38 is disconnected, the air pump 42 stops pressurizing, and the system pressure increase time is recorded. In this solution, the total pressure increase time of the FKDQ640-5 blowout preventer control device must be less than 30 minutes. Compare the system pressure increase time with the historical records. If the difference is greater than 10%, it indicates that the air pump system is abnormal.

[0096] In one embodiment, in the self-diagnosis test system of the blowout preventer control device, the controller 100 is further used to control the manifold electric unloading valve 6 to open to release the pressure of the accumulator 3, and when the pressure signal of the accumulator pressure transmitter 14 is detected to be lower than 90% of the system rated pressure, the control relay is turned on to start the motor 44 to drive the crankshaft plunger pump 45 to pressurize, and after the pressure signal of the accumulator pressure transmitter 14 reaches the system rated pressure, the control relay is turned off.

[0097] When the electric pump start-stop test is performed: the controller 100 controls the manifold electric unloading valve 6 to open, and releases the pressure until the accumulator pressure transmitter 14 is lower than 90% of the system rated pressure, the control relay KA1 is turned on, the motor 44 starts to drive the crankshaft plunger pump 45 to pressurize, and when the pressure of the monitored accumulator pressure transmitter 14 rises to the system rated pressure, the control relay KA1 is disconnected, and the crankshaft plunger pump 45 automatically stops pressurizing.

[0098] In one embodiment, in the self-diagnosis test system of the blowout preventer control device, the controller 100 is further used to control the manifold electric unloading valve 6 to open to release the pressure of the accumulator 3, and when the pressure signal of the accumulator pressure transmitter 14 is detected to be lower than 85% of the system rated pressure, the fifteenth solenoid valve 36 is controlled to open the air pump air drive ball valve 41 to connect the air pump 42 to the air source 38, and after the pressure signal reaches the system rated pressure, the fifteenth solenoid valve 36 is controlled to drive the air pump air drive ball valve 41 to close.

[0099] When the air pump 42 is started and stopped, the controller 100 controls the manifold electric unloading valve 6 to open and release the pressure until the accumulator pressure transmitter 14 is lower than 85% of the system rated pressure. The controller 100 controls the fifteenth solenoid valve 36, i.e. Figure 2 The air pump air drive ball valve switch operates the open position DO0.2 of the three-position five-way solenoid valve, and the air pump air drive ball valve 41 is connected to the air source 38 of the air pump 42. The controller 100 monitors the pressure signal of the accumulator pressure transmitter 14 until the system pressure rises to the system rated pressure, and then controls the fifteenth solenoid valve 36, that is, Figure 2 The air pump air-driven ball valve switch operates the three-position five-way solenoid valve to turn on the closed position DO0.3, the air source 38 is disconnected, and the air pump 42 automatically stops pressurizing.

[0100] In one embodiment, referring to Figure 1 As shown, the manifold of the blowout preventer control device is connected to the overflow valve 47;

[0101] In the self-diagnosis test system of the blowout preventer control device, the controller 100 is also used to control the relay to be turned on, so that the motor 44 starts to drive the crankshaft plunger pump 45 to pressurize, and to detect whether the pressure signal of the accumulator pressure transmitter 14 reaches 110% of the system rated pressure after the control relay is turned off, and continuously detect whether the pressure signal of the accumulator pressure transmitter 14 is lower than 90% of the system rated pressure during the overflow process of the overflow valve 47.

[0102] When conducting the opening and closing characteristic test of the relief valve 47: the controller 100 controls the relay KA1 to be turned on, the motor 44 starts to drive the crankshaft plunger pump 45 to pressurize, and the pressure signal of the accumulator pressure transmitter 14 is monitored. After the pressure rises to 110% of the system rated pressure, the control relay KA1 is disconnected, and the crankshaft plunger pump 45 automatically stops pressing. When the relief valve 47 is overflowing, the pressure signal of the accumulator pressure transmitter 14 is monitored, and whether the relief valve 47 overflows is determined by the change of the pressure signal of the accumulator pressure transmitter 14. In a specific embodiment, if the pressure signal value of the accumulator pressure transmitter 14 is not less than 90% of the system rated pressure, the closing pressure value of the relief valve 47 after overflow meets the requirements.

[0103] In one embodiment, referring to Figure 1As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0104] A seventh solenoid valve 28 connected to the annular air motor pressure regulating valve 19 of the blowout preventer control device;

[0105] The controller 100 is also used to control the seventh solenoid valve 28 to connect the annular air motor pressure regulating valve 19 to ventilate the air motor air inlet that reduces pressure, and to control the pressure to stabilize for a first preset time at preset pressure intervals according to the detected pressure signal of the annular pressure transmitter 18 until the pressure drops to 0 MPa, and to control the seventh solenoid valve 28 to connect the annular air motor pressure regulating valve 19 to ventilate the air motor air inlet that increases pressure, and to control the pressure to stabilize for a first preset time at preset pressure intervals according to the detected pressure signal of the annular pressure transmitter 18 until the pressure reaches the rated pressure of the system.

[0106] When the annular pressure regulating valve is tested: the controller 100 controls the seventh solenoid valve 28, that is, Figure 2 The DO0.5 of the three-position five-way solenoid valve of the annular air motor pressure regulating valve remote control is turned on, and the air inlet of the air motor of the annular air motor pressure regulating valve 19 is ventilated, and the annular air motor pressure regulating valve 19 performs a decompression action, according to the annular pressure transmitter 18, that is, Figure 2 The pressure signal of the middle annular pressure transmitter AI3 is stable at 9MPa, 6MPa and 3MPa for a first preset time until it drops to 0MPa. The controller 100 controls the seventh solenoid valve 28, i.e. Figure 2 The DO0.4 of the three-position five-way solenoid valve of the annular air motor pressure regulating valve is remotely controlled and connected, and the air inlet of the pressurized air motor of the annular air motor pressure regulating valve 19 is ventilated. The annular air motor pressure regulating valve 19 performs a pressurizing action. According to the pressure signal of the annular pressure transmitter 18, the pressure is stable at 3MPa, 6MPa, 9MPa, 12MPa and 14MPa, and a full-range pressure regulation test of the annular air motor pressure regulating valve 19 is carried out.

[0107] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0108] A fourteenth solenoid valve 35 connected to the manifold air motor pressure regulating valve 1 of the blowout preventer control device;

[0109] The controller 100 is also used to control the fourteenth solenoid valve 35 to connect the manifold air motor pressure regulating valve 1 to the air inlet ventilation of the air motor that reduces pressure, and according to the detected pressure signal of the manifold pressure transmitter 16, control the pressure to be stable for a first preset time at a preset pressure interval until the pressure drops to 0 MPa, control the fourteenth solenoid valve 35 to connect the manifold air motor pressure regulating valve 1 to the air inlet ventilation of the air motor that increases pressure, and according to the detected pressure signal of the annular pressure transmitter 18, control the pressure to be stable for a first preset time at a preset pressure interval until the pressure reaches the rated pressure of the system.

[0110] When testing the manifold pressure regulating valve: the controller 100 controls the fourteenth solenoid valve 35, that is, Figure 2 The three-position five-way solenoid valve DO0.7 of the central manifold air motor pressure regulating valve is remotely controlled to be turned on, and the air inlet of the air motor of the manifold air motor pressure regulating valve 1 is ventilated, and the manifold air motor pressure regulating valve 1 performs a pressure reducing action. According to the manifold pressure transmitter 16, that is, Figure 2 The pressure signal of the pressure transmitter AI2 of the middle manifold is stable at 9MPa, 6MPa and 3MPa for the first preset time until it drops to 0MPa. The controller 100 controls the fourteenth solenoid valve 35, i.e. Figure 2 The three-position five-way solenoid valve DO0.6 of the central manifold air motor pressure regulating valve is remotely controlled and connected, and the air inlet of the air motor pressurized by the manifold air motor pressure regulating valve 1 is ventilated. The manifold air motor pressure regulating valve 1 performs a pressurizing action. According to the pressure signal of the manifold pressure transmitter 16, the pressure is stable at 3MPa, 6MPa, 9MPa, 12MPa and 14MPa, and a full-range pressure regulation test of the manifold air motor pressure regulating valve 1 is carried out.

[0111] In the embodiment of the present invention, those skilled in the art may select the first preset time according to actual conditions.

[0112] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0113] A sixteenth solenoid valve 37 connected to the air source 38 of the blowout preventer control device, and a first solenoid valve 22 and an eighth solenoid valve 29 connected to the two-position three-way bypass valve cylinder 5 of the blowout preventer control device;

[0114] The controller 100 is further used to control the sixteenth solenoid valve 37 and the eighth solenoid valve 29 to close for a second preset time, so that the air source 38 enters the closing chamber of the two-position three-way bypass valve cylinder 5 of the blowout preventer control device through the pipeline, the two-position three-way bypass valve 4 is closed, and the input digital signal of the bypass valve closing position switch DI0.1 is detected to determine whether the two-position three-way bypass valve 4 reaches the preset closing position, and to control the sixteenth solenoid valve 37 and the first solenoid valve 22 to close for the second preset time, so that the air source 38 enters the opening chamber of the two-position three-way bypass valve cylinder 5 of the blowout preventer control device through the pipeline, the two-position three-way bypass valve 4 is opened, and the input digital signal of the bypass valve opening position switch DI0.1 is detected to determine whether the two-position three-way bypass valve 4 reaches the preset opening position.

[0115] In the embodiment of the present invention, the second preset time can be set by those skilled in the art as the actual operation time during programming, and the operation time can usually be set to 5 seconds.

[0116] When the bypass valve action test is performed: the controller 100 controls the sixteenth solenoid valve 37, i.e. the total gas source two-position three-way solenoid valve and the eighth solenoid valve 29, i.e. Figure 2 The two-position three-way electromagnetic valve DO1.1 of the middle bypass closing remote control is closed for 5 seconds, and the air source 38 enters the closing chamber of the two-position three-way bypass valve cylinder 5 through the pipeline, and the two-position three-way bypass valve 4 is closed. The digital signal is input through the bypass valve closing position switch DI0.1 to determine whether the operation is in place. The controller 100 controls the sixteenth electromagnetic valve 37 and the first electromagnetic valve 22 to close for 5 seconds, and the air source 38 enters the opening chamber of the two-position three-way bypass valve cylinder 5 through the pipeline, and the two-position three-way bypass valve 4 is opened. The digital signal is input through the bypass valve opening position switch DI0.0 to determine whether the operation is in place.

[0117] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0118] A sixth solenoid valve 27 and a ninth solenoid valve 30 connected to the annular three-position four-way rotary valve remote control cylinder 21 of the blowout preventer control device;

[0119] The controller 100 is further used to control the sixteenth solenoid valve 37 and the ninth solenoid valve 30 to close for a second preset time, so that the air source 38 enters the closing chamber of the annular three-position four-way rotary valve remote control cylinder 21 of the blowout preventer control device through the pipeline, the annular three-position four-way rotary valve 20 closes, and detects the input digital signal of the annular rotary valve closing position switch DI0.3 to determine whether the annular three-position four-way rotary valve 20 reaches the preset closing position, and controls the sixteenth solenoid valve 37 and the sixth solenoid valve 27 to close for a second preset time, so that the air source 38 enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder 21 of the blowout preventer control device through the pipeline, the annular three-position four-way rotary valve 20 opens, and detects the input digital signal of the annular rotary valve opening position switch DI0.2 to determine whether the annular three-position four-way rotary valve 20 reaches the preset opening position.

[0120] Reference Figure 1 As shown, a three-position four-way rotary valve position switch 8 is provided at the annular three-position four-way rotary valve remote control cylinder 21 for detecting the position of the annular three-position four-way rotary valve 20 .

[0121] When the annular rotary valve action test is performed: the controller 100 controls the sixteenth solenoid valve 37 and the ninth solenoid valve 30, that is, Figure 2 The annular closed remote control two-position three-way solenoid valve DO1.3 is closed for 5 seconds, and the air source 38 enters the closing chamber of the annular three-position four-way rotary valve remote control cylinder 21 through the pipeline, and the annular three-position four-way rotary valve 20 closes. The digital signal is input through the annular rotary valve closed position switch DI0.3 to determine whether the operation is in place. The controller 100 controls the sixteenth solenoid valve 37 and the sixth solenoid valve 27, that is, Figure 2 The annular open remote control two-position three-way solenoid valve DO1.2 is closed for 5 seconds, and the air source 38 enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder 21 through the pipeline, and the annular three-position four-way rotary valve 20 opens. The digital signal is input through the annular rotary valve open position switch DI0.2 to determine whether the operation is in place.

[0122] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0123] A fifth solenoid valve 26 and a tenth solenoid valve 31 connected to the upper half-sealed three-position four-way rotary valve remote control cylinder 17 of the blowout preventer control device;

[0124] The controller 100 is further used to control the sixteenth solenoid valve 37 and the tenth solenoid valve 31 to close for a second preset time, so that the air source 38 enters the closing chamber of the upper half-closed three-position four-way rotary valve remote control cylinder 17 of the blowout preventer control device through the pipeline, the upper half-closed three-position four-way rotary valve 15 is closed, and the input digital signal of the upper half-closed closing position switch DI0.5 is detected to determine whether the upper half-closed three-position four-way rotary valve 15 reaches the preset closing position, and control the sixteenth solenoid valve 37 and the fifth solenoid valve 26 to close for a second preset time, so that the air source 38 enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder 21 of the blowout preventer control device through the pipeline, the upper half-closed three-position four-way rotary valve 15 is opened, and the input digital signal of the upper half-closed opening position switch DI0.4 is detected to determine whether the upper half-closed three-position four-way rotary valve 15 reaches the preset opening position.

[0125] Reference Figure 1 As shown, a three-position four-way rotary valve position switch 8 is provided at the upper semi-sealed three-position four-way rotary valve remote control cylinder 17 for detecting the position of the upper semi-sealed three-position four-way rotary valve 15 .

[0126] When the upper half of the rotary valve is tested, the controller 100 controls the sixteenth solenoid valve 37 and the tenth solenoid valve 31 to close. Figure 2 The upper half closed remote control two-position three-way solenoid valve DO1.5 is closed for 5 seconds, and the air source 38 enters the closing chamber of the upper half closed three-position four-way rotary valve remote control cylinder 17 through the pipeline, and the upper half closed three-position four-way rotary valve 15 is closed. The upper half closed position switch DI0.5 inputs a digital signal to determine whether the operation is in place. The controller 100 controls the sixteenth solenoid valve 37 and the fifth solenoid valve 26, that is, Figure 2 The upper half closed remote control two-position three-way solenoid valve DO1.4 is closed for 5 seconds, and the air source 38 enters the opening chamber of the upper half closed three-position four-way rotary valve remote control cylinder 17 through the pipeline, and the upper half closed three-position four-way rotary valve 15 opens. The digital signal is input through the upper half closed position switch DI0.4 to determine whether the operation is in place.

[0127] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0128] The fourth solenoid valve 25 and the eleventh solenoid valve 32 connected to the full seal / shear three-position four-way rotary valve remote control cylinder 13 of the blowout preventer control device;

[0129] The controller 100 is further used to control the sixteenth solenoid valve 37 and the eleventh solenoid valve 32 to close for a second preset time, so that the air source 38 enters the closing chamber of the fully sealed / shear three-position four-way rotary valve remote control cylinder 13 of the blowout preventer control device through the pipeline, the fully sealed / shear three-position four-way rotary valve 12 is closed, and the input digital signal of the fully sealed / shear closed position switch DI0.7 is detected to determine whether the fully sealed / shear three-position four-way rotary valve 12 reaches the preset closed position, and control the sixteenth solenoid valve 37 and the fourth solenoid valve 25 to close for a second preset time, so that the air source 38 enters the opening chamber of the fully sealed / shear three-position four-way rotary valve remote control cylinder 13 of the blowout preventer control device through the pipeline, the fully sealed / shear three-position four-way rotary valve 12 is opened, and the input digital signal of the fully sealed / shear open position switch DI0.6 is detected to determine whether the fully sealed / shear three-position four-way rotary valve 12 reaches the preset open position.

[0130] Reference Figure 1 As shown, a three-position four-way rotary valve position switch 8 is provided at the fully sealed / sheared three-position four-way rotary valve remote control cylinder 13 for detecting the position of the fully sealed / sheared three-position four-way rotary valve 12 .

[0131] When performing the full seal / shear rotary valve action test: the controller 100 controls the sixteenth solenoid valve 37 and the eleventh solenoid valve 32, that is, Figure 2 The fully sealed / sheared closed remote control two-position three-way solenoid valve DO1.7 is closed for 5 seconds, and the air source 38 enters the closing chamber of the fully sealed / sheared three-position four-way rotary valve remote control cylinder 13 through the pipeline, and the fully sealed / sheared three-position four-way rotary valve 12 is closed. The fully sealed / sheared closed position switch DI0.7 inputs a digital signal to determine whether the operation is in place. The controller 100 controls the sixteenth solenoid valve 37 and the fourth solenoid valve 25, that is, Figure 2 The fully sealed / sheared open remote two-position three-way solenoid valve DO1.6 is closed for 5 seconds, and the air source 38 enters the opening chamber of the fully sealed / sheared three-position four-way rotary valve remote control cylinder 13 through the pipeline, and the fully sealed / sheared three-position four-way rotary valve 12 opens. The digital signal is input through the fully sealed / sheared open position switch DI0.6 to determine whether the operation is in place.

[0132] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0133] The third solenoid valve 24 and the twelfth solenoid valve 33 connected to the lower half-sealed three-position four-way rotary valve remote control cylinder 11 of the blowout preventer control device;

[0134] The controller 100 is also used to control the sixteenth solenoid valve 37 and the twelfth solenoid valve 33 to close for a second preset time, so that the air source 38 enters the closing chamber of the lower semi-closed three-position four-way rotary valve remote control cylinder 11 of the blowout preventer control device through the pipeline, the lower semi-closed three-position four-way rotary valve 10 is closed, and the input digital signal of the lower semi-closed closing position switch DI1.3 is detected to determine whether the lower semi-closed three-position four-way rotary valve 10 reaches the preset closing position, and control the sixteenth solenoid valve 37 and the third solenoid valve 24 to close for a second preset time, so that the air source 38 enters the opening chamber of the lower semi-closed three-position four-way rotary valve remote control cylinder 11 of the blowout preventer control device through the pipeline, the lower semi-closed three-position four-way rotary valve 10 is opened, and the input digital signal of the lower semi-closed closing position switch DI1.3 is detected to determine whether the lower semi-closed three-position four-way rotary valve 10 reaches the preset opening position.

[0135] Reference Figure 1 As shown, a three-position four-way rotary valve position switch 8 is provided at the lower semi-sealed three-position four-way rotary valve remote control cylinder 11 for detecting the position of the lower semi-sealed three-position four-way rotary valve 10.

[0136] When the lower half closed rotary valve action test is performed: the controller 100 controls the sixteenth solenoid valve 37 and the twelfth solenoid valve 33, that is, Figure 2 The lower half closed remote control two-position three-way solenoid valve DO2.1 is closed for 5 seconds, and the air source 38 enters the closing chamber of the lower half closed three-position four-way rotary valve remote control cylinder 11 through the pipeline, and the lower half closed three-position four-way rotary valve 10 is closed. The digital signal is input through the lower half closed position switch DI1.3 to determine whether the operation is in place. The controller 100 controls the sixteenth solenoid valve 37 and the third solenoid valve 24, that is, Figure 2 The lower half closed remote control two-position three-way solenoid valve DO2.0 is closed for 5 seconds, and the air source 38 enters the opening chamber of the lower half closed three-position four-way rotary valve remote control cylinder 11 through the pipeline, and the lower half closed three-position four-way rotary valve 10 opens. The digital signal is input through the lower half closed position switch DI1.2 to determine whether the operation is in place.

[0137] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0138] A second solenoid valve 23 and a thirteenth solenoid valve 34 connected to the hydraulic valve three-position four-way rotary valve remote control cylinder 9 of the blowout preventer control device;

[0139] The controller 100 is also used to control the sixteenth solenoid valve 37 and the thirteenth solenoid valve 34 to close for a second preset time, so that the air source 38 enters the closing chamber of the hydraulic valve three-position four-way rotary valve remote control cylinder 9 through the pipeline, and the hydraulic valve three-position four-way rotary valve 7 closes, and detects the input digital signal of the hydraulic valve closing position switch DI1.1 to determine whether the hydraulic valve three-position four-way rotary valve 7 reaches the preset closing position, and controls the sixteenth solenoid valve 37 and the second solenoid valve 23 to close for a second preset time, so that the air source 38 enters the opening chamber of the hydraulic valve three-position four-way rotary valve remote control cylinder 9 through the pipeline, and the hydraulic valve three-position four-way rotary valve 7 opens, and detects the input digital signal of the lower half closing position switch DI1.3 to determine whether the hydraulic valve three-position four-way rotary valve 7 reaches the preset opening position.

[0140] Reference Figure 1 As shown, a three-position four-way rotary valve position switch 8 is provided at the remote control cylinder 9 of the hydraulic valve three-position four-way rotary valve for detecting the position of the three-position four-way rotary valve 7 of the hydraulic valve.

[0141] When the hydraulic valve rotary valve action test is performed: the controller 100 controls the sixteenth solenoid valve 37 and the thirteenth solenoid valve 34, that is, Figure 2 The hydraulic valve closing remote control two-position three-way solenoid valve DO2.3 is closed for 5 seconds, and the air source 38 enters the closing chamber of the hydraulic valve three-position four-way rotary valve remote control cylinder 9 through the pipeline, and the hydraulic valve three-position four-way rotary valve 7 is closed. The digital signal is input through the hydraulic valve closing position switch DI1.1 to determine whether the operation is in place. The controller 100 controls the sixteenth solenoid valve 37 and the second solenoid valve 23, that is, Figure 2 The hydraulic valve opening remote control two-position three-way solenoid valve DO2.2 is closed for 5 seconds, and the air source 38 enters the opening chamber of the hydraulic valve three-position four-way rotary valve remote control cylinder 9 through the pipeline, and the hydraulic valve three-position four-way rotary valve 7 opens. The digital signal is input through the hydraulic valve opening position switch DI1.0 to determine whether the operation is in place.

[0142] In one embodiment, referring to Figure 1As shown, in the self-diagnosis test system of the blowout preventer control device, the controller 100 is also used to control the sixteenth solenoid valve 37 and the first solenoid valve 22 to close for a second preset time, so that the air source 38 enters the opening chamber of the two-position three-way bypass valve cylinder 5 through the pipeline, the two-position three-way bypass valve 4 opens, the control relay is turned on, the motor 44 starts to drive the crankshaft plunger pump 45 to pressurize, and at the same time, after the pressure signal of the accumulator pressure transmitter 14 is detected to the system rated pressure, the first solenoid valve 2 2. The sixth solenoid valve 27, the fifth solenoid valve 26, the fourth solenoid valve 25, the third solenoid valve 24 and the second solenoid valve 23 are connected, so that the two-position three-way bypass valve 4, the annular three-position four-way rotary valve 20, the upper half-sealed three-position four-way rotary valve 15, the fully sealed / shear three-position four-way rotary valve 12, the lower half-sealed three-position four-way rotary valve 10 and the hydraulic valve three-position four-way rotary valve 7 are all operated to the open position, and after being stationary for a third preset time, the pressure signal of the manifold pressure transmitter 16 is detected to determine whether the system pressure drop is less than the first preset pressure drop threshold value;

[0143] as well as,

[0144] Keep the accumulator pressure transmitter 14 at the system rated pressure, control the eighth solenoid valve 29, the ninth solenoid valve 30, the tenth solenoid valve 31, the eleventh solenoid valve 32, the twelfth solenoid valve 33 and the thirteenth solenoid valve 34 to be connected, so that the two-position three-way bypass valve 4, the annular three-position four-way rotary valve 20, the upper half-sealed three-position four-way rotary valve 15, the fully sealed / shear three-position four-way rotary valve 12, the lower half-sealed three-position four-way rotary valve 10 and the hydraulic valve three-position four-way rotary valve 7 are all operated to the closed position, and after being stationary for a third preset time, detect the pressure signal of the manifold pressure transmitter 16 to determine whether the system pressure drop is less than the first preset pressure drop threshold.

[0145] In the embodiment of the present invention, the third preset time can be selected by those skilled in the art according to the requirements of the BOP control device industry standard, and can usually be set to 5 minutes. The first preset pressure drop threshold can also be selected by those skilled in the art according to the requirements of the BOP control device industry standard, and can usually be set to 0.5 MPa.

[0146] When conducting the oil sealing test: the controller 100 controls the sixteenth solenoid valve 37 and the first solenoid valve 22 to close for 5 seconds, the air source 38 enters the opening chamber of the two-position three-way bypass valve cylinder 5 through the pipeline, the two-position three-way bypass valve 4 opens, the relay KA1 is turned on, the motor 44 starts to drive the crankshaft plunger pump 45 to pressurize, and the controller 100 detects the pressure signal of the accumulator pressure transmitter 14. After the system pressure rises to the rated pressure of the system, the two-position three-way bypass valve 4, the annular three-position four-way rotary valve 20, the upper half-sealed three-position four-way rotary valve 15, and the fully sealed / shear three-position four-way rotary valve 16 are tested. The pressure drop of the rotary valve 12, the lower half-sealed three-position four-way rotary valve 10 and the hydraulic valve three-position four-way rotary valve 7 in the open position, the controller 100 controls the first solenoid valve 22, the sixth solenoid valve 27, the fifth solenoid valve 26, the fourth solenoid valve 25, the third solenoid valve 24 and the second solenoid valve 23 to be connected, the two-position three-way bypass valve 4, the annular three-position four-way rotary valve 20, the upper half-sealed three-position four-way rotary valve 15, the fully sealed / shear three-position four-way rotary valve 12, the lower half-sealed three-position four-way rotary valve 10 and the hydraulic valve three-position four-way rotary valve 7 are operated to the open position, and after being stationary for 5 minutes, the pressure transmitter 16 of the manifold is passed, that is, Figure 2 The pressure drop of the manifold pressure transmitter AI2 in the detection pressure for 5 minutes is less than 0.5MPa. Keep the accumulator pressure transmitter 14 at the system rated pressure, test the pressure drop of the two-position three-way bypass valve 4, the annular three-position four-way rotary valve 20, the upper half-sealed three-position four-way rotary valve 15, the fully sealed / sheared three-position four-way rotary valve 12, the lower half-sealed three-position four-way rotary valve 10 and the hydraulic valve three-position four-way rotary valve 7 in the closed position, the controller 100 controls the eighth solenoid valve 29, the ninth solenoid valve 30, the tenth solenoid valve 31, the eleventh solenoid valve 32, the twelfth solenoid valve 33 and the thirteenth solenoid valve 34 to be turned on, the two-position three-way bypass valve 4, the annular three-position four-way rotary valve 20, the upper half-sealed three-position four-way rotary valve 15, the fully sealed / sheared three-position four-way rotary valve 12, the lower half-sealed three-position four-way rotary valve 10 and the hydraulic valve three-position four-way rotary valve 7 to be operated to the closed position, and after being stationary for 5 minutes, the pressure drop of 5 minutes detected by the manifold pressure transmitter 16 is less than 0.5MPa.

[0147] In one embodiment, referring to Figure 1 As shown, in the self-diagnosis test system of the blowout preventer control device, the controller 100 is also used to control the sixteenth solenoid valve 37 and the eighth solenoid valve 29 to close for 5 seconds after the test is completed, so that the air source 38 enters the closing chamber of the two-position three-way bypass valve cylinder 5 through the pipeline, the two-position three-way bypass valve 4 is closed, and the system returns to normal state.

[0148] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes a first alarm;

[0149] The controller 100 is also used to control the opening of the manifold electric unloading valve 6, and after detecting that the pressure signal of the accumulator pressure transmitter 14 is lower than the preset accumulator pressure alarm value, control the first alarm to sound an alarm, and control the closing of the manifold electric unloading valve 6, and control the relay to be turned on, so that the motor 44 starts and drives the crankshaft plunger pump 45 to pressurize until it is detected that the pressure signal of the accumulator pressure transmitter 14 reaches the system rated pressure.

[0150] In the embodiment of the present invention, refer to Figure 2 As shown, the first alarm can be an accumulator low pressure warning light DO2.4 and an audible and visual alarm DO2.7.

[0151] When the accumulator low pressure alarm test is performed: the controller 100 controls the manifold electric unloading valve 6 to open, and the pressure signal of the accumulator pressure transmitter 14 is lower than the accumulator pressure alarm value. After the accumulator low pressure alarm light DO2.4 and the sound and light alarm DO2.7 are closed and an alarm is sounded, the controller 100 controls the manifold electric unloading valve 6 to close, the relay KA1 is turned on, the motor 44 starts and drives the crankshaft plunger pump 45 to pressurize, and the pressure is detected by the accumulator pressure transmitter 14 and stops when the pressure reaches the system rated pressure, and the system returns to normal.

[0152] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes a second alarm;

[0153] The controller 100 is also used to control the fourteenth solenoid valve 35 to connect the ventilation of the air motor inlet of the manifold air motor pressure regulating valve 1 for reducing pressure, so that the manifold air motor pressure regulating valve 1 performs a pressure reducing action, detect that the pressure signal of the manifold pressure transmitter 16 is lower than the preset manifold pressure alarm value, control the second alarm to sound an alarm, and control the fourteenth solenoid valve 35 to connect the ventilation of the air motor inlet of the manifold air motor pressure regulating valve 1 for boosting pressure, so that the manifold air motor pressure regulating valve 1 performs a pressure boosting action, until the pressure signal of the manifold pressure transmitter 16 reaches the system rated pressure.

[0154] In the embodiment of the present invention, refer to Figure 2 As shown, the second alarm can be a manifold pressure low alarm light DO2.5 and an audible and visual alarm DO2.7.

[0155] When the manifold pressure low alarm test is performed: the controller 100 controls the fourteenth solenoid valve 35, that is, Figure 2The remote control three-position five-way solenoid valve DO0.7 of the manifold air motor pressure regulating valve in the manifold is turned on, and the air inlet of the air motor of the manifold air motor pressure regulating valve 1 is ventilated. The manifold air motor pressure regulating valve 1 performs a pressure reducing action until the pressure signal of the manifold pressure transmitter 16 is lower than the manifold pressure alarm value. After the manifold pressure low alarm light DO2.5 and the sound and light alarm DO2.7 are closed and an alarm is sounded, the controller 100 controls the fourteenth solenoid valve 35, that is, Figure 2 The three-position five-way solenoid valve DO0.6 of the manifold air motor pressure regulating valve in the remote control is turned on, and the air inlet of the air motor pressurized by the manifold air motor pressure regulating valve 1 is ventilated. The manifold air motor pressure regulating valve 1 performs the pressurizing action. According to the pressure signal of the manifold pressure transmitter 16, the pressurization is stopped when the pressure reaches 10.5MPa, and the system returns to normal.

[0156] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes a third alarm;

[0157] The controller 100 is also used to control the seventh solenoid valve 28 to connect the annular air motor pressure regulating valve 19 to ventilate the air motor air inlet of the air motor that reduces pressure, so that the annular air motor pressure regulating valve 19 performs a decompression action, detect that the pressure signal of the annular pressure transmitter 18 is lower than the preset annular pressure alarm value, control the third alarm to sound an alarm, and control the seventh solenoid valve 28 to connect the annular air motor pressure regulating valve 19 to ventilate the air motor air inlet of the air motor that increases pressure, so that the annular air motor pressure regulating valve 19 performs a pressurization action, until the pressure signal of the annular pressure transmitter 18 reaches the rated pressure of the system.

[0158] In the embodiment of the present invention, refer to Figure 2 As shown, the third alarm can be an annular low pressure alarm light DO2.6 and an audible and visual alarm DO2.7.

[0159] When the annular pressure low alarm test is performed: the controller 100 controls the seventh solenoid valve 28, that is, Figure 2 The annular air motor pressure regulating valve remote control three-position five-way solenoid valve-DO0.5 is turned on, the annular air motor pressure regulating valve 19 decompresses the air motor air inlet, and the annular air motor pressure regulating valve 19 performs a decompression action, according to the annular pressure transmitter 18, that is, Figure 2 When the pressure signal is lower than the annular pressure alarm value, the annular pressure low alarm lamp DO2.6 and the sound and light alarm DO2.7 are closed and an alarm is sounded, and then the controller 100 controls the seventh solenoid valve 28, that is, Figure 2The annular air motor pressure regulating valve remotely controls the three-position five-way solenoid valve +DO0.4, and the air inlet of the pressurized air motor of the annular air motor pressure regulating valve 19 is ventilated. The annular air motor pressure regulating valve 19 performs a pressurizing action. According to the pressure signal of the annular pressure transmitter 18, the pressurization is stopped when the pressure signal reaches 10.5MPa, and the system returns to normal.

[0160] In one embodiment, the self-diagnostic test system of the blowout preventer control device further comprises an AC voltage transmitter connected to the motor control circuit of the blowout preventer control device;

[0161] The controller 100 is also used to monitor the voltage signal of the AC voltage transmitter AI5 to determine whether the voltage signal value is within a preset rated voltage range.

[0162] When testing the system power supply voltage: the controller 100 passes the following test: Figure 2 The AC voltage transmitter AI5 shown records the system power supply voltage and determines whether the pressure signal of the AC voltage transmitter AI5 meets the ±5% requirement of the rated voltage.

[0163] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0164] An air source pressure transmitter 40 connected to the air source 38 of the blowout preventer control device;

[0165] The controller 100 is further configured to monitor the pressure signal of the gas source pressure transmitter 40 to determine whether the pressure signal is within a preset pressure range.

[0166] When testing the pressure of the gas source 38: the controller 100 detects the pressure of the gas source 38 through the gas source pressure transmitter 40, that is, Figure 2 The air source pressure transmitter AI4 in the system records the pressure signal of the air supply source and determines whether the pressure of the air source 38 meets the use requirements. Figure 1 As shown, an air source processing element 39 is further provided between the air source 38 and the air source pressure transmitter 40 to achieve air source regulation.

[0167] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0168] A liquid level transmitter 43 provided in the oil tank of the blowout preventer control device;

[0169] The controller 100 is also used to control the manifold electric unloading valve 6 to open so that the accumulator 3 is depressurized to 0 MPa, and detect whether the liquid level signal of the liquid level transmitter 43 is in a preset liquid level range.

[0170] When the oil tank level test is performed: the controller 100 controls the manifold electric unloading valve 6 to open, and the pressure signal of the accumulator pressure transmitter 14 is released to 0MPa, and the pressure signal is transmitted through the liquid level transmitter 43, that is, Figure 2 The liquid level transmitter AI6 in the oil tank detects whether the liquid level in the oil tank is higher than the minimum liquid level value and lower than the maximum liquid level value to determine whether the liquid level in the oil tank meets the use requirements.

[0171] In one embodiment, the self-diagnosis test system of the blowout preventer control device further comprises:

[0172] A temperature transmitter AI8 provided in the blowout preventer control device;

[0173] like Figure 2 As shown, the controller 100 is also used to monitor the temperature signal of the temperature transmitter AI8 to autonomously record the ambient temperature through the temperature transmitter AI8.

[0174] In one embodiment, referring to Figure 1 As shown, the self-diagnosis test system of the blowout preventer control device also includes:

[0175] It also includes an accumulator nitrogen charging pressure transmitter 2 correspondingly arranged on the upper part of each accumulator 3 of the blowout preventer control device;

[0176] The controller 100 is also used to monitor the pressure signal of the accumulator nitrogen charging pressure transmitter 2 to determine whether the pressure signal is within a preset rated pressure range.

[0177] In a specific embodiment, referring to Figure 1 As shown, the FKDQ640-5 blowout preventer control device includes 4 groups of accumulators 3, and an accumulator nitrogen charging pressure transmitter 2 is arranged on the upper part of each group of accumulators 3. Figure 2 As shown, the accumulator nitrogen charging pressure transmitters AI9, AI10, AI11 and AI12 are included. The controller 100 detects the nitrogen charging pressure of the accumulator 3 through the accumulator nitrogen charging pressure transmitters AI9, AI10, AI11 and AI12 to determine whether the nitrogen charging pressure of each accumulator 3 meets the use requirement of the system rated pressure ±10%.

[0178] The self-diagnosis test system of the blowout preventer control device provided by the embodiment of the present invention can realize different project tests through the human-machine interface through the communication between the master station and the slave station. During the test, the start and stop values ​​of the motor 44, the pressure regulating value of the air motor pressure regulating valve, the alarm value and other values ​​can be modified through the human-machine interface. The test is divided into automatic test and manual test, automatic test and one-key self-test. During the test, the human-machine interface displays the test items and test results, and automatically generates a test record sheet. At the same time, an analysis report and recommended inspection operations and spare parts that need to be replaced are given for abnormal results. For the blowout preventer control device connected to the drilling remote support system, the data can be directly uploaded to the well control management center for unified management. For the blowout preventer control device not connected to the drilling remote support system, the test results can be printed out or the electronic version of the test results can be manually sent to the well control management center for unified management. Each step of the manual test requires the operator to confirm twice whether to continue the test. The system structure is simple and clear, the operation is simple, and it is easy to promote, with excellent application prospects.

[0179] Embodiment 2

[0180] Based on the same inventive concept, an embodiment of the present invention further provides a self-diagnosis test method for a blowout preventer control device, using the self-diagnosis test system for a blowout preventer control device described in the first embodiment above.

[0181] Obviously, various changes and modifications may be made to the present invention by those skilled in the art without departing from the spirit and scope of the present invention. The present disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various changes and modifications may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims. Thus, if these changes and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and modifications.

Claims

1. A self-diagnosis test system for a blowout preventer control device, characterized in that: include: Controller; A manifold electric unloading valve provided on the manifold of the blowout preventer control device; an accumulator pressure transmitter provided in the accumulator of the blowout preventer control device; A relay disposed in a motor control circuit of the blowout preventer control device, wherein the motor control circuit controls a motor for driving a crankshaft plunger pump; A fifteenth solenoid valve connected to the air pump air drive ball valve of the blowout preventer control device; the air pump air drive ball valve controls the air pump to turn on and off the air source; The controller is used to control the manifold electric unloading valve to open to release the accumulator pressure, and after detecting that the pressure signal of the accumulator pressure transmitter reaches 0MPa, control the manifold electric unloading valve to close, control the relay to turn on, start the motor to drive the crankshaft plunger pump to pressurize, and at the same time, control the fifteenth solenoid valve to open the air pump air-driven ball valve to connect the air pump to the air source, and detect the pressure rise time of the accumulator pressure transmitter, and after the pressure signal reaches the system rated pressure, control the relay to close and control the fifteenth solenoid valve to drive the air pump air-driven ball valve to close.

2. The self-diagnostic test system according to claim 1, characterized in that: Also includes: A flow meter provided on the manifold of the blowout preventer control device, for detecting the flow of the crankshaft plunger pump; The controller is also used to control the manifold electric unloading valve to open to release the accumulator pressure, and after detecting that the pressure signal of the accumulator pressure transmitter reaches 0MPa, control the manifold electric unloading valve to close, control the relay to turn on, start the motor to drive the crankshaft plunger pump to pressurize, and detect the boost time of the accumulator pressure transmitter, and control the relay to close after the pressure signal reaches the system rated pressure; and during the boost process, detect whether the flow rate of the flow meter exceeds the preset rated flow value.

3. The self-diagnostic test system according to claim 1, characterized in that: The controller is also used to control the opening of the manifold electric unloading valve to release the accumulator pressure, control the closing of the manifold electric unloading valve after detecting that the pressure signal of the accumulator pressure transmitter reaches 0MPa, control the fifteenth solenoid valve to open the air pump air-driven ball valve to connect the air pump to the air source, and detect the pressure rise time of the accumulator pressure transmitter, and control the fifteenth solenoid valve to drive the air pump air-driven ball valve to close after the pressure signal reaches the system rated pressure.

4. The self-diagnostic test system according to claim 1, characterized in that: The controller is also used to control the opening of the manifold electric unloading valve to release the accumulator pressure. When the pressure signal of the accumulator pressure transmitter is detected to be lower than 90% of the system rated pressure, the control relay is turned on to start the motor to drive the crankshaft plunger pump to pressurize. Moreover, after the pressure signal of the accumulator pressure transmitter reaches the system rated pressure, the control relay is turned off.

5. The self-diagnostic test system according to claim 1, characterized in that: The controller is also used to control the manifold electric unloading valve to open to release the accumulator pressure. When the pressure signal of the accumulator pressure transmitter AI1 is detected to be lower than 85% of the system rated pressure, the fifteenth solenoid valve is controlled to open the air pump air-driven ball valve to connect the air pump to the air source. After the pressure signal reaches the system rated pressure, the fifteenth solenoid valve is controlled to drive the air pump air-driven ball valve to close.

6. The self-diagnostic test system according to claim 1, characterized in that: The manifold of the blowout preventer control device is connected to a relief valve; The controller is also used to control the relay to turn on, so that the motor starts and drives the crankshaft plunger pump to pressurize, and to detect when the pressure signal of the accumulator pressure transmitter reaches 110% of the system rated pressure. After the control relay is turned off, it continuously detects whether the pressure signal of the accumulator pressure transmitter during the overflow process of the overflow valve is lower than 90% of the system rated pressure.

7. The self-diagnostic test system according to claim 1, characterized in that: Also includes: A seventh solenoid valve connected to the annular air motor pressure regulating valve of the blowout preventer control device; The controller is also used to control the seventh solenoid valve to connect the annular air motor pressure regulating valve to ventilate the air motor air inlet of the air motor that reduces pressure, and to control the pressure to be stable for a first preset time at preset pressure intervals according to the detected pressure signal of the annular pressure transmitter until the pressure drops to 0MPa, and to control the seventh solenoid valve to connect the annular air motor pressure regulating valve to ventilate the air motor air inlet of the air motor that increases pressure, and to control the pressure to be stable for a first preset time at preset pressure intervals according to the detected pressure signal of the annular pressure transmitter until the pressure reaches the rated pressure of the system.

8. The self-diagnostic test system according to claim 1, characterized in that: Also includes: A fourteenth solenoid valve connected to the manifold air motor pressure regulating valve of the blowout preventer control device; The controller is also used to control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to reduce the pressure of the air motor inlet ventilation, and according to the detected pressure signal of the manifold pressure transmitter, control the pressure to be stable for a first preset time at a preset pressure interval until the pressure drops to 0MPa, and control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to increase the pressure of the air motor inlet ventilation, and according to the detected pressure signal of the annular pressure transmitter, control the pressure to be stable for a first preset time at a preset pressure interval until the pressure reaches the rated pressure of the system.

9. The self-diagnostic test system according to claim 1, characterized in that: Also includes: A sixteenth solenoid valve connected to the air source of the blowout preventer control device, and a first solenoid valve and an eighth solenoid valve connected to the cylinder of a two-position three-way bypass valve of the blowout preventer control device; The controller is further used to control the sixteenth solenoid valve and the eighth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the two-position three-way bypass valve cylinder of the blowout preventer control device through the pipeline, the two-position three-way bypass valve closes, and the input digital signal of the bypass valve closing position switch is detected to determine whether the two-position three-way bypass valve reaches the preset closing position, and to control the sixteenth solenoid valve and the first solenoid valve to close for the second preset time, so that the air source enters the opening chamber of the two-position three-way bypass valve cylinder of the blowout preventer control device through the pipeline, the two-position three-way bypass valve opens, and the input digital signal of the bypass valve opening position switch is detected to determine whether the two-position three-way bypass valve reaches the preset opening position.

10. The self-diagnostic test system according to claim 9, characterized in that: Also includes: A sixth solenoid valve and a ninth solenoid valve connected to the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device; The controller is further used to control the sixteenth solenoid valve and the ninth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the annular three-position four-way rotary valve closes, and the input digital signal of the annular three-position four-way rotary valve closing position switch is detected to determine whether the annular three-position four-way rotary valve reaches the preset closing position, and to control the sixteenth solenoid valve and the sixth solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the annular three-position four-way rotary valve opens, and the input digital signal of the annular three-position four-way rotary valve opening position switch is detected to determine whether the annular three-position four-way rotary valve reaches the preset opening position.

11. The self-diagnostic test system according to claim 10, characterized in that: Also includes: A fifth solenoid valve and a tenth solenoid valve connected to the upper half-sealed three-position four-way rotary valve remote control cylinder of the blowout preventer control device; The controller is also used to control the sixteenth solenoid valve and the tenth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the upper half-sealed three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the upper half-sealed three-position four-way rotary valve closes, and the input digital signal of the upper half-sealed closed position switch is detected to determine whether the upper half-sealed three-position four-way rotary valve reaches the preset closed position, and control the sixteenth solenoid valve and the fifth solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the annular three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the upper half-sealed three-position four-way rotary valve opens, and the input digital signal of the upper half-sealed open position switch is detected to determine whether the upper half-sealed three-position four-way rotary valve reaches the preset open position.

12. The self-diagnostic test system according to claim 11, characterized in that: Also includes: A fourth solenoid valve and an eleventh solenoid valve connected to the fully sealed / shear three-position four-way rotary valve remote control cylinder of the blowout preventer control device; The controller is also used to control the sixteenth solenoid valve and the eleventh solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the fully sealed / shear three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the fully sealed / shear three-position four-way rotary valve closes, and detects the input digital signal of the fully sealed / shear closed position switch to determine whether the fully sealed / shear three-position four-way rotary valve reaches the preset closed position, and controls the sixteenth solenoid valve and the fourth solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the fully sealed / shear three-position four-way rotary valve remote control cylinder of the blowout preventer control device through the pipeline, the fully sealed / shear three-position four-way rotary valve opens, and detects the input digital signal of the fully sealed / shear open position switch to determine whether the fully sealed / shear three-position four-way rotary valve reaches the preset open position.

13. The self-diagnostic test system according to claim 12, characterized in that: Also includes: The third solenoid valve and the twelfth solenoid valve of the lower half-sealed three-position four-way rotary valve remote control cylinder connected to the blowout preventer control device; The controller is also used to control the sixteenth solenoid valve and the twelfth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the remote control cylinder of the lower semi-sealed three-position four-way rotary valve of the blowout preventer control device through the pipeline, the lower semi-sealed three-position four-way rotary valve closes, and the input digital signal of the lower semi-sealed closed position switch is detected to determine whether the lower semi-sealed three-position four-way rotary valve reaches the preset closed position, and to control the sixteenth solenoid valve and the third solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the remote control cylinder of the lower semi-sealed three-position four-way rotary valve of the blowout preventer control device through the pipeline, the lower semi-sealed three-position four-way rotary valve opens, and the input digital signal of the lower semi-sealed closed position switch is detected to determine whether the lower semi-sealed three-position four-way rotary valve reaches the preset open position.

14. The self-diagnostic test system according to claim 13, characterized in that: Also includes: A second solenoid valve and a thirteenth solenoid valve connected to the remote control cylinder of the hydraulic valve three-position four-way rotary valve of the blowout preventer control device; The controller is also used to control the sixteenth solenoid valve and the thirteenth solenoid valve to close for a second preset time, so that the air source enters the closing chamber of the hydraulic valve's three-position four-way rotary valve remote control cylinder through the pipeline, the hydraulic valve's three-position four-way rotary valve closes, and detects the input digital signal of the hydraulic valve closing position switch to determine whether the hydraulic valve's three-position four-way rotary valve has reached the preset closing position, and controls the sixteenth solenoid valve and the second solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the hydraulic valve's three-position four-way rotary valve remote control cylinder through the pipeline, the hydraulic valve's three-position four-way rotary valve opens, and detects the input digital signal of the lower half closing position switch to determine whether the hydraulic valve's three-position four-way rotary valve has reached the preset opening position.

15. The self-diagnostic test system according to claim 14, characterized in that: The controller is also used to control the sixteenth solenoid valve and the first solenoid valve to close for a second preset time, so that the air source enters the opening chamber of the two-position three-way bypass valve cylinder through the pipeline, the two-position three-way bypass valve opens, the control relay is turned on, the motor starts to drive the crankshaft plunger pump to pressurize, and at the same time, after detecting the pressure signal of the accumulator pressure transmitter to the system rated pressure, the first solenoid valve, the sixth solenoid valve, the fifth solenoid valve, the fourth solenoid valve, the third solenoid valve and the second solenoid valve are controlled to be connected, so that the two-position three-way bypass valve, the annular three-position four-way rotary valve, the upper half-sealed three-position four-way rotary valve, the fully sealed / sheared three-position four-way rotary valve, the lower half-sealed three-position four-way rotary valve and the hydraulic valve three-position four-way rotary valve are all operated to the open position, and after being stationary for a third preset time, the pressure signal of the manifold pressure transmitter is detected to determine whether the system pressure drop is less than the first preset pressure drop threshold; as well as, Keep the accumulator pressure transmitter at the system rated pressure, control the eighth solenoid valve, the ninth solenoid valve, the tenth solenoid valve, the eleventh solenoid valve, the twelfth solenoid valve and the thirteenth solenoid valve to be connected, so that the two-position three-way bypass valve, the annular three-position four-way rotary valve, the upper half-sealed three-position four-way rotary valve, the fully sealed / shear three-position four-way rotary valve, the lower half-sealed three-position four-way rotary valve and the hydraulic valve three-position four-way rotary valve are all operated to the closed position, and after being stationary for a third preset time, detect the pressure signal of the manifold pressure transmitter to determine whether the system pressure drop is less than the first preset pressure drop threshold.

16. The self-diagnostic test system according to claim 15, characterized in that: The controller is also used to control the sixteenth solenoid valve and the eighth solenoid valve to close for a second preset time after the test is completed, so that the air source enters the closing chamber of the two-position three-way bypass valve cylinder through the pipeline, and the two-position three-way bypass valve is closed.

17. The self-diagnostic test system according to claim 1, characterized in that: Also includes a first alarm; The controller is also used to control the opening of the manifold electric unloading valve, and after detecting that the pressure signal of the accumulator pressure transmitter is lower than the preset accumulator pressure alarm value, control the first alarm to sound an alarm, and control the closing of the manifold electric unloading valve and control the relay to turn on so that the motor starts and drives the crankshaft plunger pump to pressurize until it is detected that the pressure signal of the accumulator pressure transmitter reaches the system rated pressure.

18. The self-diagnostic test system according to claim 8, characterized in that: Also includes a second alarm; The controller is also used to control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to the air motor air inlet for ventilation, so that the manifold air motor pressure regulating valve performs a pressure reducing action, detect that the pressure signal of the manifold pressure transmitter is lower than a preset manifold pressure alarm value, control the second alarm to sound an alarm, and control the fourteenth solenoid valve to connect the manifold air motor pressure regulating valve to the air motor air inlet for ventilation, so that the manifold air motor pressure regulating valve performs a pressure increasing action, until the pressure signal of the manifold pressure transmitter reaches the system rated pressure.

19. The self-diagnostic test system according to claim 1, characterized in that: Also includes a third alarm; The controller is also used to control the seventh solenoid valve to connect the annular air motor pressure regulating valve to the air motor air inlet ventilation for decompression, so that the annular air motor pressure regulating valve performs a decompression action, detect that the pressure signal of the annular pressure transmitter is lower than a preset annular pressure alarm value, control the third alarm to sound an alarm, and control the seventh solenoid valve to connect the annular air motor pressure regulating valve to the air motor air inlet ventilation for pressurization, so that the annular air motor pressure regulating valve performs a pressurization action, until the pressure signal of the annular pressure transmitter is detected to reach the system rated pressure.

20. The self-diagnostic test system of claim 1, wherein: Also included is an AC voltage transmitter connected to the motor control circuit of the blowout preventer control device; The controller is also used to monitor the voltage signal of the AC voltage transmitter to determine whether the voltage signal value is within a preset rated voltage range.

21. The self-diagnostic test system of claim 1, wherein: Also included is an air source pressure transmitter connected to the air source of the blowout preventer control device; The controller is also used to monitor the pressure signal of the gas source pressure transmitter to determine whether the pressure signal is within a preset pressure range.

22. The self-diagnostic test system of claim 1, wherein: Also included is a liquid level transmitter disposed in the oil tank of the blowout preventer control device; The controller is also used to control the manifold electric unloading valve to open so that the accumulator is depressurized to 0 MPa, and detect whether the liquid level signal of the liquid level transmitter is in a preset liquid level range.

23. The self-diagnostic test system of claim 1, wherein: Also included is a temperature transmitter disposed on the blowout preventer control device; The controller is also used to monitor the temperature signal of the temperature transmitter.

24. The self-diagnostic test system of claim 1, wherein: It also includes an accumulator nitrogen charging pressure transmitter correspondingly arranged on the upper part of each accumulator of the blowout preventer control device; The controller is also used to monitor the pressure signal of the accumulator nitrogen charging pressure transmitter to determine whether the pressure signal is within a preset rated pressure range.

25. The self-diagnostic test system according to any one of claims 1 to 24, characterized in that: The controller includes a main processor, a slave station, and a digital input module, a digital output module and an analog input module connected to the main processor; The master processor is communicatively connected to the slave station.

26. A self-diagnosis test method for a blowout preventer control device, characterized in that: A self-diagnostic test system for a blowout preventer control device using any one of claims 1-25.

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