Oil pipe coupling positioning device and method for under-pressure operation machine

Abstract

The invention relates to the technical field of oil and gas exploitation equipment, and provides an under-pressure operation machine oil pipe coupling positioning device and method.The positioning device comprises a coupling detection device, an oil pipe coupling positioning device and an oil pipe coupling positioning device, the position sensor is mounted on the lifting device so as to detect the lifting height of the lifting device; the slip detection sensors are respectively mounted on the movable slip group and the fixed slip group so as to detect the on-off states of the movable slip group and the fixed slip group; the blowout preventer detection sensors are respectively mounted on the upper ram blowout preventer and the lower ram blowout preventer so as to detect the on-off states of the upper ram blowout preventer and the lower ram blowout preventer; and the controller is respectively connected with the coupling detection device, the position sensor, the slip detection sensor and the blowout preventer detection sensor. When the lifting device stops, the coupling can be stopped at the correct position, movable parts such as a slip and a blowout preventer are avoided, it is guaranteed that the under-pressure operation machine works smoothly and reliably, and the precise operation effect and the operation efficiency of the under-pressure operation machine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas production equipment, and in particular to a device and method for positioning a coupling of an oil pipe of a pressure-operated machine. Background Art

[0002] Pressure operation is an advanced downhole operation technology that maintains a certain pressure in the wellbore, and does not kill the well or release the pressure to carry out the tubing string. Compared with traditional downhole operations, since there is no well killing process, it can maximize the protection of the oil and gas layer and the environment, reduce the pollution to the oil and gas layer, effectively protect the oil and gas reservoir, and is conducive to the stable production of oil, gas and water wells after repair and improve the water injection efficiency.

[0003] Traditional pressure-operating equipment is mainly fixed derrick pressure-operating device, which is integrated with lift, mast, slips, balance winch, blowout preventer, tongs and other structures. However, its use, operation and operation methods have not changed or improved significantly over the years. Like other oilfield products such as drilling rigs and workover rigs, workers still need to control hydraulic cylinders or hydraulic valves through hydraulic handles on the operating platform to perform complex manual operations to complete underbalanced drilling tripping, completion and workover operations.

[0004] The operation and operation of existing snubbing equipment are mainly achieved by workers operating the hydraulic handle on the top platform of the pressure-operating machine to control the hydraulic cylinder or hydraulic valve. Snubbing is mainly the lifting and pressing down of the oil pipe. During operation, the operator needs to repeatedly and orderly operate multiple hydraulic handles according to the working conditions. The length of an oil pipe is about 9.5 meters, and the lifting device needs 3 to 4 actions to lift or press an oil pipe out of the well. When the lifting device moves each time, the position where the oil pipe coupling at the connection of the oil pipe stops must avoid moving parts such as slips and blowout preventers, and the coupling is always inside the equipment, and the operator cannot see its specific position. This requires the operator to have rich experience to avoid the coupling stopping in the wrong position when the lifting device stops, otherwise it can only be re-operated and adjusted. And whether it is lifting or pressing down, the operator needs to connect or disconnect the oil pipes one by one when controlling the equipment. This requires the hydraulic clamps on the operating platform, and the hydraulic clamps have a limited range of operation, so the operator must stop the tubing coupling at a specified height on the operating platform every time. If the coupling is too high or too low, the hydraulic clamps will not be able to smoothly complete the make-up and break-out. In summary, the traditional snubbing equipment is not high in terms of operation convenience and equipment efficiency, and does not conform to the development trend of automation, intelligence, and unmanned operation of oilfield equipment. Summary of the invention

[0005] The purpose of the embodiments disclosed herein is to provide a device and method for positioning an oil pipe coupling of a pressure working machine, so as to at least solve the technical problems existing in the prior art that the coupling may stop at a wrong position when the lifting device of the pressure working machine stops, interfere with the moving parts of the pressure working machine, the pressure working machine requires experienced operators, and the operation is inconvenient.

[0006] In order to solve the above technical problems, the embodiments of the present disclosure adopt the following technical solutions:

[0007] In a first aspect, an embodiment of the present disclosure provides a device for positioning a coupling of an oil pipe of a pressure working machine, wherein the pressure working machine comprises a mobile slip group, a lifting device, a fixed slip group, an annular blowout preventer, an upper ram blowout preventer, a balanced blowout preventer system and a lower ram blowout preventer, which are sequentially arranged from top to bottom, and the positioning device comprises:

[0008] A coupling detection device, used to detect the position of the oil pipe coupling, the coupling detection device comprises an upper coupling detection device and a lower coupling detection device;

[0009] a position sensor, mounted on the lifting device, for detecting the lifting height of the lifting device;

[0010] Slip detection sensors, respectively installed on the mobile slip group and the fixed slip group, for detecting the switch status of the mobile slip group and the fixed slip group;

[0011] BOP detection sensors, respectively mounted on the upper ram BOP and the lower ram BOP, for detecting the switch states of the upper ram BOP and the lower ram BOP;

[0012] The controller is respectively connected to the coupling detection device, the position sensor, the slip detection sensor, and the blowout preventer detection sensor, and is used to receive detection information of the coupling detection device, the position sensor, the slip detection sensor, and the blowout preventer detection sensor, and control various components of the belt pressure working machine according to the detection information, thereby controlling the positioning height of the oil pipe coupling.

[0013] In some embodiments, the mobile slip group is installed on the top of the lifting device, the fixed slip group is installed above the annular blowout preventer, the mobile slip group includes a mobile load-bearing slip and a mobile downward pressure slip, the mobile load-bearing slip is located above the mobile downward pressure slip, the upper coupling detection device is installed on the mobile load-bearing slip, and the lower coupling detection device is installed between the upper gate blowout preventer and the lower gate blowout preventer.

[0014] In some embodiments, the position sensor is built into the lifting cylinder of the lifting device, and the position sensor includes at least one of a linear sensor, a pull rope sensor, a photoelectric sensor, and an encoder.

[0015] In some embodiments, the slip detection sensor includes at least one of a proximity sensor, a linear sensor, a differential pressure transformer, an encoder, and a pressure transmitter;

[0016] The blowout preventer detection sensor includes at least one of a proximity sensor, a linear sensor, a differential pressure transformer, an encoder, and a pressure transmitter.

[0017] In some embodiments, the balanced blowout prevention system is installed on a high-pressure four-way valve, and the balanced blowout prevention system includes a balancing valve, a blowout valve and a pressure sensor, and the balancing valve and the blowout valve are respectively connected to corresponding balanced blowout manifolds; and / or

[0018] The upper ram blowout preventer and the lower ram blowout preventer are U-shaped single ram blowout preventers.

[0019] In some embodiments, the positioning device also includes a weight indicator connected to the controller, which is used to judge the state of the oil pipe before lifting the oil pipe out of the well or placing the oil pipe into the well, so as to control the switches of the mobile cava group and the fixed cava group according to the state of the oil pipe.

[0020] In some embodiments, the positioning device also includes an alarm system connected to the controller, which is used to output a corresponding alarm signal according to the coupling position information detected by the coupling detection device, the stroke information of the lifting device detected by the position sensor, the slip switch status information detected by the slip detection sensor, and the blowout preventer switch status information detected by the blowout preventer detection sensor.

[0021] In some embodiments, the controller is respectively connected to the mobile slip group, the lifting device, the fixed slip group, the annular blowout preventer, the upper gate blowout preventer and the lower gate blowout preventer through corresponding proportional solenoid valves.

[0022] In some embodiments, the operation mode of the belt pressure operation machine includes a pipe lifting out of the well mode and a pipe lowering into the well mode, and the controller controls various components of the belt pressure operation machine according to the operation mode of the belt pressure operation machine.

[0023] In a second aspect, an embodiment of the present disclosure provides a method for positioning a coupling of an oil pipe of a pressurized operation machine, comprising:

[0024] The height information of the oil pipe coupling is detected by a coupling detection device arranged on the belt pressure working machine;

[0025] Detecting the lifting height of the lifting device by means of a position sensor arranged on the lifting device;

[0026] The switch states of the mobile slip group and the fixed slip group are detected by the slip detection sensors arranged on the mobile slip group and the fixed slip group;

[0027] Detecting the switch status of the upper ram blowout preventer and the lower ram blowout preventer by means of slip detection sensors arranged on the upper ram blowout preventer and the lower ram blowout preventer;

[0028] According to the detection information of the coupling detection device, the position sensor, the slip detection sensor and the blowout preventer detection sensor, the components of the belt pressure working machine are controlled, thereby controlling the positioning height of the oil pipe coupling.

[0029] In a third aspect, an embodiment of the present disclosure provides an electronic device, comprising at least a memory and a processor, wherein the memory stores a computer program, and the processor implements the above-mentioned method for positioning a coupling of an oil pipe during a pressurized operation when executing the computer program on the memory.

[0030] In a fourth aspect, an embodiment of the present disclosure provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the above-mentioned method for locating a coupling of an oil pipe of a pressurized operation machine is implemented.

[0031] The embodiment of the present disclosure provides a device and method for positioning a coupling of an oil pipe of a pressure working machine. The pressure working machine is sequentially arranged from top to bottom as a mobile slip group, a lifting device, a fixed slip group, an annular blowout preventer, an upper gate blowout preventer, a balanced blowout preventer system and a lower gate blowout preventer. The positioning device is arranged to include a coupling detection device, a position sensor, a slip detection sensor, a blowout preventer detection sensor and a controller. The coupling detection device is used to detect the position of the oil pipe coupling. The coupling detection device includes an upper coupling detection device and a lower coupling detection device. The position sensor is installed on the lifting device to detect the lifting height of the lifting device. The slip detection sensors are respectively installed on the mobile slip group and the fixed slip group to detect the switch states of the mobile slip group and the fixed slip group. The blowout preventer detection sensors are respectively installed on the upper gate blowout preventer and the lower gate blowout preventer to detect the switch states of the upper gate blowout preventer and the lower gate blowout preventer. The controller is respectively connected to the coupling detection device, the position sensor, the slip detection sensor, the blowout preventer detection sensor, the The detection sensor is connected to receive the detection information of the coupling detection device, the position sensor, the slip detection sensor and the blowout preventer detection sensor, and the various components of the pressure working machine are controlled according to the detection information, so as to control the positioning height of the tubing coupling; the positioning device can detect the tubing coupling through the coupling detection device when the pressure working machine is working, and monitor the positions of the slips, blowout preventer and lifting device in real time through the corresponding sensors, so that the tubing coupling stops at the correct position when the lifting device stops, effectively avoiding the moving parts such as slips and blowout preventer, ensuring the smooth and reliable operation of the pressure working machine, and improving the precise operation effect of the pressure working machine; in addition, the present disclosure can realize automatic and precise control of various components of the pressure working machine through the controller, realize automatic control of the stroke of each action of the lifting device, automatic control of the switch of the slips and blowout preventer, and automatic control of the coupling positioning height, which is easy to operate and does not require the operator to manually operate the hydraulic components, etc., thereby improving the operation efficiency of the pressure working machine and improving the automation, intelligence and unmanned level of the pressure working machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 It is a structural schematic diagram of the oil pipe coupling positioning device for a pressurized operation machine according to an embodiment of the present disclosure;

[0034] Figure 2It is a schematic diagram of positioning control of a coupling positioning device for an oil pipe of a pressurized working machine according to an embodiment of the present disclosure;

[0035] Figure 3 Another positioning control schematic diagram of the oil pipe coupling positioning device for a pressure-operated machine according to an embodiment of the present disclosure.

[0036] Reference numerals:

[0037] 11-Mobile load-bearing slip, 12-Mobile downward pressure slip; 2-Lifting device; 31-Fixed load-bearing slip, 32-Fixed downward pressure slip; 4-Annular blowout preventer; 51-Upper gate blowout preventer, 52-Lower gate blowout preventer; 6-Balanced blowout prevention system; 71-Upper coupling detection device, 72-Lower coupling detection device. DETAILED DESCRIPTION

[0038] Various aspects and features of the present disclosure are described herein with reference to the drawings.

[0039] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

[0040] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the general description of the present disclosure given above and the detailed description of the embodiments given below, serve to explain the principles of the present disclosure.

[0041] These and other characteristics of the present disclosure will become apparent from the following description of a preferred form of embodiment given as a non-limiting example, with reference to the accompanying drawings.

[0042] It should also be understood that, although the present disclosure has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present disclosure that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0043] The above and other aspects, features and advantages of the present disclosure will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0044] Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments claimed are merely examples of the present disclosure, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid obscuring the present disclosure with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present disclosure in a variety of ways with substantially any suitable detailed structure.

[0045] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present disclosure.

[0046] Figure 1 The structural schematic diagram of the oil pipe coupling positioning device for a pressurized working machine according to an embodiment of the present disclosure is shown. Figure 1 As shown, an oil pipe coupling positioning device for a pressure working machine provided in an embodiment of the present disclosure, the pressure working machine comprises a mobile slip group (or mobile slip), a lifting device 2, a fixed slip group (or fixed slip), an annular blowout preventer 4, an upper ram blowout preventer 51, a balanced blowout preventer system 6 and a lower ram blowout preventer 52, which are arranged in sequence from top to bottom. The positioning device comprises:

[0047] A coupling detection device, used to detect the position of a tubing coupling (referred to as coupling), the coupling detection device comprising an upper coupling detection device 71 and a lower coupling detection device 72;

[0048] A position sensor, mounted on the lifting device 2, for detecting the lifting height of the lifting device 2;

[0049] Slip detection sensors, respectively installed on the mobile slip group and the fixed slip group, for detecting the switch status of the mobile slip group and the fixed slip group;

[0050] BOP detection sensors, respectively mounted on the upper ram BOP 51 and the lower ram BOP 52, for detecting the switch status of the upper ram BOP 51 and the lower ram BOP 52;

[0051] The controller is respectively connected to the coupling detection device, the position sensor, the slip detection sensor, and the blowout preventer detection sensor, and is used to receive detection information of the coupling detection device, the position sensor, the slip detection sensor, and the blowout preventer detection sensor, and control various components of the belt pressure working machine according to the detection information, thereby controlling the positioning height of the oil pipe coupling.

[0052] The tubing coupling is installed at the tubing connection and is used to connect different tubings through the tubing coupling. In this embodiment, the coupling detection device is used to detect the position of the tubing coupling according to the height of the tubing lifted from the well or the height of the tubing placed in the well when the tubing is lifted by the lifting device 2, and send the detected tubing coupling position to the controller. The coupling detection device can be at least one of a visual, photoelectric or travel switch, and can transmit the position information of the tubing coupling to the controller in the form of an electrical signal when the tubing coupling is detected.

[0053] The position sensor can detect the lifting height of the lifting device 2 in real time, and transmit the lifting height information to the controller in the form of an electrical signal. Slip detection sensors are installed on the slips of the mobile slip group and the fixed slip group, respectively, for detecting the switch status of the slips in the mobile slip group and the fixed slip group, and transmitting the switch status information of the slips to the controller, so that the controller can judge the switch status of the blowout preventer. The upper ram blowout preventer 51 and the lower ram blowout preventer 52 cooperate with the balanced blowout system 6 to achieve pressure sealing when the pipe string is lifted up and down the well. The upper ram blowout preventer 51 and the lower ram blowout preventer 52 are installed with blowout preventer opening and closing detection sensors to detect the switch status of the upper ram blowout preventer 51 and the lower ram blowout preventer 52, and transmit the switch status information of the upper ram blowout preventer 51 and the lower ram blowout preventer 52 to the controller, so that the controller can judge the switch status of the blowout preventer.

[0054] The core of the controller is a CPU, PLC or other microprocessor, which has the ability to receive and output digital and analog signals. It is responsible for receiving detection information such as the coupling detection signal detected by the coupling detection device, the travel signal of the lifting device 2 detected by the position sensor, the slip switch signal detected by the slip detection sensor, the blowout preventer switch signal detected by the blowout preventer detection sensor, and the start, stop, and emergency stop signals of the pressure-operating machine equipment. After receiving the above detection information, the controller can control the actions of the mobile slip group, the lifting device 2, the fixed slip group, the upper gate blowout preventer 51, and the lower gate blowout preventer 52 according to the above detection information, so that the position where the oil pipe coupling at the oil pipe connection stops avoids the slips, blowout preventers and other moving parts every time the lifting device 2 moves, so as to avoid the oil pipe coupling stopping at the wrong position when the lifting device 2 stops, and ensure the reliable operation of the pressure-operating machine.

[0055] The controller is preferably an electronic control system, equipped with a touch screen for parameter setting, operation data display, alarm information display, etc.

[0056] The oil pipe coupling positioning device for a pressure-operated machine provided in the embodiment of the present disclosure can detect the oil pipe coupling through the coupling detection device when the pressure-operated machine is operating, and monitor the positions of the slips, blowout preventers, and lifting device 2 in real time through corresponding sensors, so that the oil pipe coupling stops at the correct position when the lifting device 2 stops, effectively avoiding movable parts such as slips and blowout preventers, ensuring the smooth and reliable operation of the pressure-operated machine, and improving the precise operation effect of the pressure-operated machine; in addition, the present disclosure can realize automatic and precise control of various components of the pressure-operated machine through a controller, realize automatic control of the stroke of each action of the lifting device 2, automatic control of the switches of slips and blowout preventers, and automatic control of the coupling positioning height, and is easy to operate, without the need for an operator to manually operate hydraulic components, etc., thereby improving the operating efficiency of the pressure-operated machine and improving the automation, intelligence, and unmanned level of the pressure-operated machine.

[0057] It can be understood that in this embodiment, the controller controls the various components of the pressure working machine according to the detection information, mainly controlling the lifting device 2, slips (mobile slip group, fixed slip group), blowout preventer (annular blowout preventer 4, upper gate blowout preventer 51, lower gate blowout preventer 52) and other action mechanisms. In specific implementation, the controller can also control other non-action mechanisms as needed.

[0058] In some embodiments, the controller is respectively connected to the mobile slip group, the lifting device 2, the fixed slip group, the annular blowout preventer 4, the upper gate blowout preventer 51 and the lower gate blowout preventer 52 through corresponding proportional solenoid valves.

[0059] After the CPU processor processes and calculates the above detection information, the lifting device 2, slips (including mobile slip groups and fixed slip groups), blowout preventers (including annular blowout preventers 4, upper gate blowout preventers 51, and lower gate blowout preventers 52) and other action mechanisms are electrically controlled using the type of proportional solenoid valve electric control fluid. The CPU of the controller sends a control signal to control the switch and opening of the corresponding proportional solenoid valve to achieve the action speed control of the action mechanism, and finally achieve the precise control of the position of the action mechanism.

[0060] In some embodiments, Figure 1 As shown, the mobile slip group is installed on the top of the lifting device 2, the fixed slip group is installed above the annular blowout preventer 4, the mobile slip group includes a mobile load-bearing slip 11 and a mobile pressing slip 12, the mobile load-bearing slip 11 is located above the mobile pressing slip 12, the upper coupling detection device 71 is installed on the mobile load-bearing slip 11, and the lower coupling detection device 72 is installed between the upper gate blowout preventer 51 and the lower gate blowout preventer 52.

[0061] The traveling slip group is installed at the top of the lifting device 2 and can move up and down with the lifting device 2. The lifting device 2 can be composed of 2 or 4 lifting cylinders, which can lift the traveling slips up and down. The structure of the lifting device 2 can also be in other forms, which is not specifically limited in the present disclosure.

[0062] The movable slip group and the fixed slip group serve as bearing structures to clamp and fix the tubing string. The slips in the movable slip group and the fixed slip group are preferably of conical structure to reliably clamp and fix the tubing. The two slips in the movable slip group and the fixed slip group are used to deal with the situation where the weight of the bearing body is positive or negative, respectively. For example, when the weight of the tubing is greater than the outward pressure from the well, the weight of the tubing reflected on the tubing is a positive value, and the tubing pressure is downward. At this time, the load-bearing slips should be used to maintain the balance of the tubing string; when the weight of the tubing is less than the outward pressure from the well, the weight of the tubing reflected on the tubing is a negative value, and the tubing pressure is upward. At this time, the downward pressure slips should be used to maintain the balance of the tubing string.

[0063] The mobile load-bearing slips 11 and the mobile pressing slips 12 of the traveling slip group are respectively equipped with slip detection sensors to respectively detect the switch states of the mobile load-bearing slips 11 and the mobile pressing slips 12. The fixed slip group includes fixed load-bearing slips 31 and fixed pressing slips 32, and the fixed load-bearing slips 31 and the fixed pressing slips 32 are respectively equipped with slip detection sensors to respectively detect the switch states of the fixed load-bearing slips 31 and the fixed pressing slips 32. In some embodiments, the slip detection sensor includes at least one of a proximity sensor, a linear sensor, a differential pressure transformer, an encoder, and a pressure transmitter. The slip detection sensor can also be a sensor of other forms, as long as it can accurately detect the switch state of the slips.

[0064] Similar to the above-mentioned slip detection sensor, the blowout preventer detection sensor includes at least one of a proximity sensor, a linear sensor, a differential pressure transformer, an encoder, and a pressure transmitter. The blowout preventer detection sensor can also be other forms of sensors as long as it can accurately detect the switch state of the gate blowout preventer.

[0065] In some embodiments, the position sensor is built into the lifting cylinder of the lifting device 2 to accurately detect the lifting height (stroke height) of the lifting device. The position sensor includes at least one of a linear sensor, a pull rope sensor, a photoelectric sensor, and an encoder. The position sensor can also be a sensor of other forms, as long as it can accurately detect the lifting height of the lifting device 2.

[0066] In some embodiments, the balanced blowout prevention system 6 is installed on the high-pressure four-way, and the balanced blowout prevention system 6 includes a balanced valve, a blowout valve and a pressure sensor, and the balanced valve and the blowout valve are respectively connected to the corresponding balanced blowout manifold. The upper gate blowout preventer 51 and the lower gate blowout preventer 52 are preferably U-shaped single gate blowout preventers.

[0067] In some embodiments, the positioning device also includes a weight indicator connected to the controller, which is used to judge the state of the oil pipe before lifting the oil pipe out of the well or placing the oil pipe into the well, so as to control the switches of the mobile cava group and the fixed cava group according to the state of the oil pipe.

[0068] Before using the pressure operation machine, the operator can judge whether the tubing string is in a heavy or light state according to the weight indicator, that is, whether the slip load is positive or negative. Then, according to the tubing status, the operator can set the operation on the controller to use the load-bearing slips or the downward pressure slips or both slips at the same time.

[0069] In some embodiments, the positioning device also includes an alarm system connected to the controller, which is used to output a corresponding alarm signal according to the coupling position information detected by the coupling detection device, the stroke information of the lifting device detected by the position sensor, the slip switch status information detected by the slip detection sensor, and the blowout preventer switch status information detected by the blowout preventer detection sensor.

[0070] During the operation of the pressure-operated machine, if the slips, gate blowout preventers, etc. are not opened or closed properly, or the coupling detection device does not detect the oil pipe coupling, etc., the controller will immediately stop the equipment operation and alarm through the alarm system to prompt the operator to deal with it in time.

[0071] Optionally, the operation mode of the pressure working machine includes a pipe lifting out of the well mode and a pipe lowering into the well mode. Before the pressure working machine operates, the operator can select the corresponding operation mode through the controller. After the operation mode is determined, the start button is pressed and the pressure working machine starts to operate.

[0072] When the entire belt pressure operation machine is running, the execution of each step (such as opening or closing the mobile slip group) must be started after obtaining correct feedback from the previous step. If the feedback is wrong or there is no feedback, the controller controls the belt pressure operation machine to stop and alarm.

[0073] The specific positioning control logic of the oil pipe coupling positioning device of the belt pressure working machine is described in detail below in combination with the specific working process of the belt pressure working machine on the oil pipe.

[0074] Embodiment 1

[0075] like Figure 2 As shown, in this embodiment, the pressure-operated machine performs the process of lifting the pipe out of the well. Figure 1As shown in the figure, S is the maximum moving distance of the lifting device; A is the distance from the lower coupling detection device to the spool; B is the distance from the spool to the middle position of the gap between the movable downward pressure slip and the fixed downward pressure slip; C is the distance from the middle position of the gap between the movable downward pressure slip and the fixed downward pressure slip to the upper shackle position of the coupling; D is the distance from the coupling to the coupling detected by the upper coupling detection device (i.e. the coupling height).

[0076] 1) The controller first determines whether the lower gate blowout preventer is opened according to the received switch status information of the lower gate blowout preventer;

[0077] 2) If the lower gate blowout preventer is opened, the controller controls the floating slip group to close and the fixed slip group to open;

[0078] 3) The controller controls the lifting device to lift, and its target stroke is S;

[0079] 4) During the lifting process of the lifting device, the lower coupling detection device detects the oil pipe coupling;

[0080] 5) If the lower coupling detection device detects the coupling, execute step 6); if the lower coupling detection device does not detect the coupling, execute step 16);

[0081] 6) Changing the target stroke of the lifting device to the sum of the position of the lifting device when the coupling is detected (the first position) and the stroke A;

[0082] 7) The controller controls the lower gate blowout preventer to close; the controller controls the fixed slip group to close and controls the movable slip group to open;

[0083] 8) After the lower gate blowout preventer is closed, the controller controls the blowout valve of the balanced blowout system to open. When the pressure between the upper and lower gates is released, the controller controls the blowout valve to close and controls the upper gate blowout preventer to open;

[0084] 9) After the fixed slip group is closed and the movable slip group is controlled to open in step 7), the controller controls the lifting device to return to the starting point; then, the controller controls the movable slip group to close and the fixed slip group to open;

[0085] 10) The controller detects whether the fixed slip group after executing step 9) is opened through the slip detection sensor; the controller detects whether the upper gate blowout preventer of step 8) is opened through the blowout prevention detection sensor;

[0086] 11) If the fixed slip group is opened and the upper gate blowout preventer is opened, the controller controls the lifting device to lift the target stroke B;

[0087] 12) The controller controls the fixed slip group to close and the movable slip group to open;

[0088] 13) After executing step 12), the controller controls the upper gate blowout preventer to close; after the upper gate blowout preventer is closed, the controller controls the balance valve of the balanced blowout system to open, and when the pressure between the upper and lower gates is released, the controller controls the balance valve to close and controls the lower gate blowout preventer to open;

[0089] 14) After executing step 12), the controller controls the lifting device to return to the starting point; after the lifting device returns to the starting point, the controller controls the floating slip group to close and controls the fixed slip group to open; the controller controls the lifting device to lift the target stroke C; after the lifting device lifts the target stroke C, the controller controls the fixed slip group to close and controls the floating slip group to open; then, the controller controls the lifting device to return to the starting point again;

[0090] 15) After the lifting device returns to the starting point, the upper coupling detection device detects whether the coupling height is D. If so, it is determined that the position of the coupling is appropriate, and the controller controls the lifting device to return to the starting point to complete the positioning of the tubing coupling; if the coupling height is higher than D, the controller controls the lifting device to drop by the deviation value of the target height, until the coupling height detected by the upper coupling detection device is D, then the floating slip group is controlled to be closed, the fixed slip group is controlled to be opened, and the lifting device is controlled to return to the starting point to complete the positioning of the tubing coupling; if the coupling height is lower than D, the controller controls the lifting device to return to the starting point, then the floating slip group is controlled to be closed, the fixed slip group is controlled to be opened, and the lifting device is controlled to lift the target by the deviation value of the correct height, until the coupling height detected by the upper coupling detection device is D, then the fixed slip group is controlled to be closed, the floating slip group is controlled to be opened, and the lifting device is controlled to return to the starting point to complete the positioning of the tubing coupling.

[0091] 16) When the coupling is not detected by the lower coupling detection device in step 5), the controller controls the lifting device to reach the target S, then controls the fixed slip group to close, controls the floating slip group to open, and controls the lifting device to return to the starting point; thereafter, the controller controls the floating slip group to close, controls the fixed slip group to open, and controls the lifting device to lift the target S; thereafter, the coupling is continuously detected by the lower coupling detection device, and if detected, the above steps 6) to 15) are executed; if not detected, step 16) is executed, and so on. During the lifting process, the switch status of the slips and the blowout preventer is monitored in real time, and the position of the tubing coupling is detected by the coupling detection device, and the tubing coupling is stopped at a suitable position according to the switch status of the slips and the blowout preventer.

[0092] Embodiment 2

[0093] like Figure 3 As shown, in this embodiment, the pressure-operated machine performs the process of lowering pipes into the well.

[0094] 1) The controller first determines whether the upper gate blowout preventer is opened according to the received switch status information of the upper gate blowout preventer;

[0095] 2) If the upper gate blowout preventer is opened, the controller controls the fixed slip group to close and controls the floating slip group to open;

[0096] 3) The controller controls the lifting device to lift, and its target stroke is C; after the lifting device is lifted, the controller controls the lifting device to return to the starting point;

[0097] 4) The controller controls the fixed slip group to close and the floating slip group to open; the controller controls the lifting device to lift, and its target stroke is B; after the lifting device is lifted, the controller controls the floating slip group to close and the fixed slip group to open; the controller controls the lifting device to return to the starting point; thereafter, the controller controls the fixed slip group to close and the floating slip group to open;

[0098] 5) After the floating slip group is opened, the controller controls the lifting device to lift, and its target stroke is S; after the lifting device is lifted, the controller controls the floating slip group to close and controls the fixed slip group to open;

[0099] 6) After executing step 4) to open the traveling slip group, the controller closes the upper gate blowout preventer, and then controls the balance valve of the balanced blowout system to open. After the pressure between the upper and lower gates is released, the controller controls the balance valve to close and controls the lower gate blowout preventer to open;

[0100] 7) The controller detects whether the fixed slip group after executing step 5) is opened through the slip detection sensor; the controller detects whether the lower gate blowout preventer of step 6) is opened through the blowout prevention detection sensor;

[0101] 8) If the fixed slip group is open and the lower gate blowout preventer is open, the controller controls the lifting device to return to the starting point; then, the fixed slip group is controlled to close and the movable slip group is controlled to open;

[0102] 9) After executing step 8), the controller controls the lower gate blowout preventer to close; after the lower gate blowout preventer is closed, the controller controls the blowout valve of the balanced blowout system to open, and when the pressure between the upper and lower gates is released, the controller controls the blowout valve to close and controls the upper gate blowout preventer to open;

[0103] 10) After executing step 8), the controller controls the lifting device to lift, and its target stroke is S;

[0104] 11) The upper coupling detection device detects whether the coupling height is D. If so, it is determined that the coupling position is appropriate, and the controller controls the lifting device to stop and return to the starting point to complete the positioning of the tubing coupling; if the coupling height is higher than D, the lifting device stops after sensing the coupling, and the controller controls the lifting device to descend to a position higher than the target until the coupling height detected by the upper coupling detection device is D, then the floating slip group is controlled to be closed, the fixed slip group is controlled to be opened, and the lifting device is controlled to return to the starting point to complete the positioning of the tubing coupling; if the coupling height is lower than D, the lifting device stops after sensing the coupling, and the controller controls the lifting device to return to the starting point, then the floating slip group is controlled to be closed, the fixed slip group is controlled to be opened, and the lifting device is controlled to lift the deviation value of the target distance from the correct height until the coupling height detected by the upper coupling detection device is D, then the fixed slip group is controlled to be closed, the floating slip group is controlled to be opened, and the lifting device is controlled to return to the starting point to complete the positioning of the tubing coupling.

[0105] Based on the above-mentioned oil pipe coupling positioning device for a pressurized working machine, the embodiment of the present disclosure provides a method for positioning an oil pipe coupling for a pressurized working machine, comprising:

[0106] S101: Detecting height information of the oil pipe coupling by a coupling detection device provided on the belt pressure working machine;

[0107] S102: Detecting a lifting height of the lifting device by a position sensor disposed on the lifting device;

[0108] S103: detecting the switch status of the mobile slip group and the fixed slip group by means of slip detection sensors arranged on the mobile slip group and the fixed slip group;

[0109] S104: Detecting the switch status of the upper ram blowout preventer and the lower ram blowout preventer by means of slip detection sensors disposed on the upper ram blowout preventer and the lower ram blowout preventer;

[0110] S105: Controlling various components of the belt pressure working machine according to the detection information of the coupling detection device, the position sensor, the slip detection sensor and the blowout preventer detection sensor, thereby controlling the positioning height of the oil pipe coupling.

[0111] It can be understood that there is no specific execution order for the above steps S101 to S104. After executing a certain step from S101 to S104, step S105 can be executed to control the corresponding action mechanism; then, after executing another step from S101 to S104 again, step S105 can be executed to control the action of another action mechanism.

[0112] The method for positioning a coupling of an oil pipe for a pressurized operating machine provided in the embodiment of the present disclosure corresponds to the device for positioning a coupling of an oil pipe for a pressurized operating machine in the above-mentioned embodiment. Any optional items in the embodiment of the device for positioning a coupling of an oil pipe for a pressurized operating machine are also applicable to the embodiment of the method for positioning a coupling of an oil pipe for a pressurized operating machine, which will not be repeated here.

[0113] The disclosed embodiment also provides an electronic device, comprising at least a memory and a processor, wherein the memory stores a computer program, and the processor implements the above-mentioned method for positioning a coupling of an oil pipe under pressure when executing the computer program on the memory.

[0114] In some embodiments, the processor executing the computer program may be a processing device including one or more general-purpose processing devices, such as a microprocessor, a central processing unit (CPU), a graphics processing unit (GPU), etc. More specifically, the processor may be a complex instruction set computing (CISC) microprocessor, a reduced instruction set computing (RISC) microprocessor, a very long instruction word (VLIW) microprocessor, a processor running other instruction sets, or a processor running a combination of instruction sets. The processor may also be one or more special-purpose processing devices, such as an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), a digital signal processor (DSP), a system on a chip (SoC), etc.

[0115] The memory may be a read-only memory (ROM), a random access memory (RAM), a phase-change random access memory (PRAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), an electrically erasable programmable read-only memory (EEPROM), other types of random access memory (RAM), a flash disk or other form of flash memory, a cache, a register, a static memory, a compact disk read-only memory (CD-ROM), a digital versatile disk (DVD) or other optical storage, a cassette or other magnetic storage device, or any other possible non-temporary medium used to store information or instructions that can be accessed by a computer device.

[0116] The electronic devices of the embodiments of the present disclosure may include but are not limited to fixed terminal devices such as servers, desktop computers, digital TVs, etc., and mobile terminal devices such as vehicle-mounted devices (such as head-up display devices), handheld devices (such as mobile phones, tablet computers, etc.), wearable devices (such as smart watches, smart bracelets, etc.), etc.

[0117] The embodiment of the present disclosure also provides a computer-readable storage medium, wherein the computer-readable medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned method for locating a coupling of an oil pipe of a pressurized operation machine is implemented.

[0118] The computer-readable storage medium of the embodiments of the present disclosure may adopt any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. In the embodiments of the present disclosure, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device or device, for example, the above-mentioned memory.

[0119] The computer programs of the embodiments of the present disclosure may be organized into one or more computer executable components or modules. Any number and combination of such components or modules may be used to implement the various aspects of the present disclosure. For example, the various aspects of the present disclosure are not limited to the specific computer executable instructions or specific components or modules shown in the drawings and described herein. Other embodiments may include different computer executable instructions or components with more or less functions than those shown and described herein.

[0120] The above description is only a preferred embodiment of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of disclosure involved in the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the above features are replaced with the technical features with similar functions disclosed in the present disclosure (but not limited to) by each other to form a technical solution.

Claims

1. A device for positioning a coupling of an oil pipe of a pressurized machine, characterized in that: The pressure working machine comprises a mobile slip group, a lifting device, a fixed slip group, an annular blowout preventer, an upper ram blowout preventer, a balanced blowout preventer system and a lower ram blowout preventer, which are arranged in sequence from top to bottom. The positioning device comprises: A coupling detection device, used to detect the position of the oil pipe coupling, the coupling detection device comprises an upper coupling detection device and a lower coupling detection device; a position sensor, mounted on the lifting device, for detecting the lifting height of the lifting device; Slip detection sensors, respectively installed on the mobile slip group and the fixed slip group, for detecting the switch status of the mobile slip group and the fixed slip group; BOP detection sensors, respectively mounted on the upper ram BOP and the lower ram BOP, for detecting the switch status of the upper ram BOP and the lower ram BOP; The controller is respectively connected to the coupling detection device, the position sensor, the slip detection sensor, and the blowout preventer detection sensor, and is used to receive detection information of the coupling detection device, the position sensor, the slip detection sensor, and the blowout preventer detection sensor, and control various components of the belt pressure working machine according to the detection information, thereby controlling the positioning height of the oil pipe coupling.

2. The oil pipe coupling positioning device for a pressurized machine according to claim 1, characterized in that: The mobile slip group is installed on the top of the lifting device, the fixed slip group is installed above the annular blowout preventer, the mobile slip group includes mobile load-bearing slips and mobile downward pressure slips, the mobile load-bearing slips are located above the mobile downward pressure slips, the upper coupling detection device is installed on the mobile load-bearing slips, and the lower coupling detection device is installed between the upper gate blowout preventer and the lower gate blowout preventer.

3. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The position sensor is built in the lifting cylinder of the lifting device, and the position sensor includes at least one of a linear sensor, a pull rope sensor, a photoelectric sensor, and an encoder.

4. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The slip detection sensor includes at least one of a proximity sensor, a linear sensor, a differential pressure transformer, an encoder, and a pressure transmitter; The blowout preventer detection sensor includes at least one of a proximity sensor, a linear sensor, a differential pressure transformer, an encoder, and a pressure transmitter.

5. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The balanced blowout prevention system is installed on the high-pressure four-way valve, and the balanced blowout prevention system includes a balancing valve, a blowout valve and a pressure sensor, and the balancing valve and the blowout valve are respectively connected to the corresponding balanced blowout manifold; and / or The upper ram blowout preventer and the lower ram blowout preventer are U-shaped single ram blowout preventers.

6. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The positioning device also includes a weight indicator connected to the controller, which is used to judge the state of the oil pipe before lifting it out of the well or placing it into the well, so as to control the switches of the mobile slip group and the fixed slip group according to the state of the oil pipe.

7. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The positioning device also includes an alarm system connected to the controller, which is used to output a corresponding alarm signal according to the coupling position information detected by the coupling detection device, the stroke information of the lifting device detected by the position sensor, the slip switch status information detected by the slip detection sensor, and the blowout preventer switch status information detected by the blowout preventer detection sensor.

8. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The controller is respectively connected with the movable slip group, the lifting device, the fixed slip group, the annular blowout preventer, the upper gate blowout preventer and the lower gate blowout preventer through corresponding proportional solenoid valves.

9. The oil pipe coupling positioning device for a pressurized working machine according to claim 1, characterized in that: The operation modes of the belt pressure operation machine include a pipe lifting out of the well mode and a pipe lowering into the well mode, and the controller controls various components of the belt pressure operation machine according to the operation mode of the belt pressure operation machine.

10. A method for positioning a coupling of an oil pipe of a pressurized machine, characterized in that: include: The height information of the oil pipe coupling is detected by a coupling detection device arranged on the belt pressure working machine; Detecting the lifting height of the lifting device by means of a position sensor arranged on the lifting device; The switch states of the mobile slip group and the fixed slip group are detected by the slip detection sensors arranged on the mobile slip group and the fixed slip group; Detecting the switch status of the upper ram blowout preventer and the lower ram blowout preventer by means of slip detection sensors arranged on the upper ram blowout preventer and the lower ram blowout preventer; According to the detection information of the coupling detection device, the position sensor, the slip detection sensor and the blowout preventer detection sensor, the components of the belt pressure working machine are controlled, thereby controlling the positioning height of the oil pipe coupling.

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