A remotely controlled grease injection hydraulic control device

Abstract

The present invention provides a remotely controllable grease injection hydraulic control device, comprising: a first hydraulic pump system and a second hydraulic pump system, wherein the first output oil circuits of the first hydraulic pump and the second hydraulic pump system are respectively connected to the first hydraulic grease injection pump and the second hydraulic grease injection pump, the first hydraulic grease injection pump and the second hydraulic grease injection pump extract sealing grease from the same sealing grease box and supply the sealing grease to the device to be greased through a control pipeline, the second output oil circuits of the first hydraulic pump and the second hydraulic pump system are connected to the cable blowout prevention equipment and the grease injection hydraulic control valve assembly on the control pipeline, the first hydraulic pump system, the second hydraulic pump system, the sealing grease box, the control pipeline and the cable blowout prevention equipment are provided with a sensor detection system, and the video monitoring system is provided on the peripheral side of the cable blowout prevention equipment. The remotely controllable grease injection hydraulic control device provided by the present invention can realize remote control and detection of the grease injection hydraulic control device through a remote computer or a handheld tablet.

Description

Technical Field

[0001] The invention relates to the technical field of grease injection hydraulic control, and in particular to a grease injection hydraulic control device capable of remote control. Background Art

[0002] As a key component of the wellhead cable blowout prevention device, the grease injection hydraulic control system directly affects the safety performance of the cable pressure operation equipment. At present, the grease injection hydraulic control devices used in domestic and foreign oil field logging and perforating operations are generally manually controlled. However, the grease injection parameters are adjusted manually based on experience, and the construction process parameters are relatively random. At the same time, the construction parameters are recorded manually, and the records of the wellhead parameters and equipment output parameters during the construction process are incomplete, which poses a great safety hazard. Moreover, with the integration of construction control, various equipment needs to be completed in the control room. In addition, the operating environment of oil and gas development is generally harsh, and improving the operating environment is also a demand. Therefore, it is very necessary to design a remotely controlled grease injection hydraulic control device. Summary of the invention

[0003] The purpose of the present invention is to provide a remotely controllable grease injection hydraulic control device, which can realize remote control and detection of the grease injection hydraulic control device through a remote computer during perforating or logging operations, thereby improving the operating environment of operators and realizing the transformation of cable blowout prevention on-site control into computer control in a well site control room or a remote office.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] A remotely controllable grease injection hydraulic control device comprises: a first hydraulic pump system, a second hydraulic pump system, an electrical control system, a sensor detection system, a video monitoring system and a software control system, wherein the first output oil circuits of the first hydraulic pump system and the second hydraulic pump system are respectively connected to the first hydraulic grease injection pump and the second hydraulic grease injection pump, the first hydraulic grease injection pump and the second hydraulic grease injection pump extract sealing grease from the same sealing grease box and supply the sealing grease to a device to be greased through a control pipeline, the second output oil circuits of the first hydraulic pump system and the second hydraulic pump system are connected to the control valve of a cable blowout prevention device and the grease injection hydraulic control valve assembly on the control pipeline, the first hydraulic pump system, the second hydraulic pump system, the sealing grease box, the control pipeline and the cable blowout prevention device are provided with the sensor detection system, the video monitoring system is provided around the cable blowout prevention device, the first hydraulic pump system, the second hydraulic pump system, the sensor detection system and the video monitoring system are connected to the electrical control system, and the electrical control system is connected to the software control system.

[0006] Optionally, the grease injection hydraulic control device also includes a pneumatic grease injection pump system and a pneumatic hydraulic pump system. The output oil circuit of the pneumatic grease injection pump system is connected to the output oil circuit of the second hydraulic grease injection pump. The pneumatic grease injection pump system extracts sealing grease from the sealing grease box and supplies the sealing grease to the device to be greased through a control pipeline. The output oil circuit of the pneumatic hydraulic pump system is connected to the control valve of the cable blowout prevention equipment for supplying oil to the cable blowout prevention equipment. The pneumatic hydraulic pump system and the pneumatic grease injection pump system are provided with the sensing detection system, and the pneumatic hydraulic pump system and the pneumatic grease injection pump system are connected to the electrical control system.

[0007] Optionally, the grease injection hydraulic control device also includes a manual hydraulic pump system, and the manual hydraulic pump system is connected to the control valve of the cable blowout prevention equipment to supply oil to the cable blowout prevention equipment.

[0008] Optionally, the sensing detection system includes a pressure sensor, a temperature sensor and a liquid level sensor. The pressure sensor is arranged on the first hydraulic pump system, the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system and the cable blowout prevention equipment. The temperature sensor and the liquid level sensor are arranged in the first hydraulic pump system, the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system, the manual hydraulic pump system and the sealing grease box. The pressure sensor, the temperature sensor and the liquid level sensor are connected to the electrical control system.

[0009] Optionally, the grease injection hydraulic control device can realize automatic adjustment of the grease injection system output pressure according to the wellhead pressure when the grease injection pressure automatic adjustment switch is turned on based on the collected wellhead pressure and parameters set by the software system.

[0010] According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: the remotely controllable grease injection hydraulic control device provided by the present invention comprises a first hydraulic pump system, a second hydraulic pump system, an electrical control system, a sensor detection system, a video monitoring system and a software control system. Grease injection control and hydraulic control are realized through the first hydraulic pump system, the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system and the manual hydraulic pump system, wherein the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system and the manual hydraulic pump system are used as backups in case of emergency. The sensor detection system can collect various data of the system, the video monitoring system can collect the key positions of the equipment and the real-time operating status of the wellhead blowout preventer string, the electrical control system can realize information collection and control of various components of the system, and the software control system can view the collected information. The device can realize remote control and detection of the grease injection hydraulic control device through a remote computer during perforating or logging operations, thereby improving the operating environment of the operator and realizing the transformation of the cable blowout prevention on-site control into computer control in the well site control room or remote office. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 This is a hydraulic and pneumatic control principle diagram of a grease injection hydraulic control device that can be remotely controlled according to an embodiment of the present invention;

[0013] Figure 2 This is the main control interface diagram of the software control system;

[0014] Figure 3 This is the pressure recording interface diagram of the software control system;

[0015] Figure 4 This is an example of a mechanical entity operation panel diagram of a conventional control system of the same type;

[0016] Figure 5 An enlarged explanatory diagram of an example of a software controlled system valve table.

[0017] Figure numerals: 1. First hydraulic pump system; 2. Second hydraulic pump system; 3. Pneumatic hydraulic pump system; 4. Cable blowout prevention equipment; 5. Grease injection hydraulic control valve assembly; 6. Grease injection device; 7. Manual hydraulic pump system; 8. First hydraulic grease injection pump; 9. Sealing grease box; 10. Second hydraulic grease injection pump; 11. Pneumatic grease injection pump system; 12. Pneumatic grease injection pump. DETAILED DESCRIPTION

[0018] The purpose of the present invention is to provide a remotely controllable grease injection hydraulic control device, which can realize remote control and detection of the grease injection hydraulic control device through a remote computer during perforating or logging operations, thereby improving the operating environment of operators and realizing the transformation of cable blowout prevention on-site control into computer control in a well site control room or a remote office.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1As shown, the remotely controllable grease injection hydraulic control device provided by the embodiment of the present invention includes: a first hydraulic pump system 1, a second hydraulic pump system 2, an electrical control system, a sensor detection system, a video monitoring system and a software control system. The first output oil circuits of the first hydraulic pump system 1 and the second hydraulic pump system 2 are respectively connected to the first hydraulic grease injection pump 8 and the second hydraulic grease injection pump 10. The first hydraulic grease injection pump 8 and the second hydraulic grease injection pump 10 extract sealing grease from the same sealing grease box 9 and supply the sealing grease to the device to be greased 6 through the control pipeline. The second output oil circuits of the first hydraulic pump system 1 and the second hydraulic pump system 2 are connected to the cable blowout prevention device 4 and the grease injection hydraulic control valve assembly on the control pipeline. The sensor detection system is arranged on the first hydraulic pump system 1, the second hydraulic pump system 2, the sealing grease box 9, the control pipeline and the cable blowout prevention device 4. The video monitoring system is arranged on the surrounding side of the cable blowout prevention device 4. The first hydraulic pump system 1, the second hydraulic pump system 2, the sensor detection system and the video monitoring system are connected to the electrical control system, and the electrical control system is connected to the software control system.

[0021] The grease injection hydraulic control device also includes a pneumatic grease injection pump system 11 and a pneumatic hydraulic pump system 3. The output oil circuit of the pneumatic grease injection pump system 11 is connected to the output oil circuit of the second hydraulic grease injection pump 10. The pneumatic grease injection pump system 11 extracts sealing grease from the sealing grease box 9 and supplies the sealing grease to the device to be greased 6 through a control pipeline. The output oil circuit of the pneumatic hydraulic pump system 3 is connected to the cable blowout prevention device 4, which is used to supply oil to the cable blowout prevention device 4. The pneumatic hydraulic pump system 3 and the pneumatic grease injection pump system 11 are provided with the sensing detection system, and the pneumatic hydraulic pump system 3 and the pneumatic grease injection pump system 11 are connected to the electrical control system.

[0022] Among them, one of the first hydraulic pump system 1 and the second hydraulic pump system 2 is in normal use and the other is in standby. An additional pneumatic hydraulic pump system 3 and a pneumatic grease injection pump system 11 are provided for emergency use in case of power failure. The schematic diagram of the first hydraulic pump system 1, the second hydraulic pump system 2, the pneumatic grease injection pump system 11 and the pneumatic hydraulic pump system 3 is as shown in FIG. Figure 1 shown.

[0023] The pneumatic grease injection pump system 11 implements grease injection operation through the pneumatic grease injection pump 12 .

[0024] The grease injection hydraulic control valve assembly 5 can adopt a high-pressure hydraulic stop valve, which adopts a low-pressure hydraulic control method to control the high-pressure switch. The hydraulic system solenoid valve is controlled by the electrical control system to control the oil cylinder of the high-pressure hydraulic stop valve to realize the switch of the high-pressure valve. At the same time, a manual switch function is added to the key valves;

[0025] The pressure regulation of the system of the present invention adopts an electromagnetic proportional regulating valve to control the driving pressure to realize remote control.

[0026] In the hydraulic pump system of the system of the present invention, the switch valve is controlled by an electromagnetic reversing valve or an electromagnetic stop valve, and the pressure regulating valve adopts an electromagnetic proportional regulating valve. For the control of key equipment such as collectors, blowout preventers, blowout preventer boxes, rope scrapers, etc., the manual control function is still retained to enable emergency control when the equipment is powered off, thereby improving the safety of the equipment.

[0027] The grease injection hydraulic control device further comprises a manual hydraulic pump system 7 , which is connected to the cable blowout prevention device 4 and is used to supply oil to the cable blowout prevention device 4 .

[0028] The electrical control system consists of high and low voltage electrical processing modules, PLC processing units, routers, switches, touch screen computers, electrical controls and relays, etc., and is used to achieve remote control of pumps, valves and motors.

[0029] The sensing detection system includes a pressure sensor, a temperature sensor and a liquid level sensor. The pressure sensor is arranged on the first hydraulic pump system 1, the second hydraulic pump system 2, the pneumatic grease injection pump system 11, the pneumatic hydraulic pump system 3 and the cable blowout prevention equipment 4. The temperature sensor and the liquid level sensor are arranged in the first hydraulic pump system 1, the second hydraulic pump system 2, the pneumatic grease injection pump system 11, the pneumatic hydraulic pump system 3, the manual hydraulic pump system 7 and the sealing grease box 9. The pressure sensor, the temperature sensor and the liquid level sensor are electrically connected to the electrical control system. The operating status of the system is detected by the pressure sensor, the temperature sensor and the liquid level sensor, so as to realize the pressure, temperature and liquid level detection of the sealing grease box, each control pipeline of the system and each oil tank, and realize the temperature and pressure detection of the wellhead and each injection control head.

[0030] The video monitoring system consists of cameras, hard disks, video recorders and transmission cables, and is used to detect the operating status of wellhead equipment and hydraulic control devices in real time;

[0031] The grease injection hydraulic control device can realize automatic adjustment of the output pressure of the grease injection system according to the wellhead pressure when the grease injection pressure automatic adjustment switch is turned on, based on the collected wellhead pressure and the parameters set by the software system.

[0032] The software control system can be set on a computer, including a system control interface, a parameter setting interface, an equipment monitoring interface, a pressure recording interface, etc. The control interface is converted according to the interface of a conventional grease injection hydraulic control device, and it is very easy to switch from a mechanical panel operation to a software interface; the pressure recording interface can select and observe the wellhead pressure, grease injection pressure, and pressure parameters related to equipment operation, and record the equipment operation status in real time. The present invention provides several schematic diagrams of the software control system as shown in the figure. Figure 2 , Figure 3 and Figure 4 As shown, in addition, the present invention provides Figure 2 , Figure 3 and Figure 4 The diagram in the figure is as follows: Figure 5 shown.

[0033] The cable blowout prevention equipment mentioned in the present invention comprises an upper blowout preventer, a middle blowout preventer, a shear blowout preventer, a catcher, a winding motor, a rope hanger, a blowout prevention box and a card grabber.

[0034] The invention provides a remotely controllable grease injection hydraulic control device, which includes a first hydraulic pump system, a second hydraulic pump system, an electrical control system, a sensor detection system, a video monitoring system and a software control system. Grease injection control and hydraulic control are achieved through the first hydraulic pump system, the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system and the manual hydraulic pump system, wherein the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system and the manual hydraulic pump system are used as backups in case of emergency. Various data of the system can be collected through the sensor detection system, and the key positions of the collection equipment and the real-time operating status of the wellhead blowout preventer string can be monitored through the video monitoring system. Information collection and control of various components of the system can be achieved through the electrical control system, and the collected information can be viewed through the software control system. The device can remotely control and detect the grease injection hydraulic control device through a remote computer during perforating or logging operations, thereby improving the operating environment of operators and realizing the transformation of cable blowout prevention on-site control into computer control in a well site control room or a remote office.

[0035] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A remotely controllable grease injection hydraulic control device, characterized in that: include: The first hydraulic pump system, the second hydraulic pump system, the electrical control system, the sensor detection system, the video monitoring system and the software control system, the first output oil circuits of the first hydraulic pump system and the second hydraulic pump system are respectively connected to the first hydraulic grease injection pump and the second hydraulic grease injection pump, the first hydraulic grease injection pump and the second hydraulic grease injection pump extract sealing grease from the same sealing grease box and supply the sealing grease to the device to be greased through the control pipeline, the second output oil circuits of the first hydraulic pump system and the second hydraulic pump system are connected to the cable blowout prevention equipment and the grease injection hydraulic control valve assembly on the control pipeline, the first hydraulic pump system, the second hydraulic pump system, the sealing grease box, the control pipeline and the cable blowout prevention equipment are provided with the sensor detection system, the video monitoring system is provided on the surrounding side of the cable blowout prevention equipment, the first hydraulic pump system, the second hydraulic pump system, the sensor detection system and the video monitoring system are connected to the electrical control system, and the electrical control system is connected to the software control system; The grease injection hydraulic control device also includes a pneumatic grease injection pump system and a pneumatic hydraulic pump system. The output oil circuit of the pneumatic grease injection pump system is connected to the output oil circuit of the second hydraulic grease injection pump. The pneumatic grease injection pump system extracts sealing grease from the sealing grease box and supplies the sealing grease to the device to be greased through a control pipeline. The output oil circuit of the pneumatic hydraulic pump system is connected to the cable blowout prevention equipment for supplying oil to the cable blowout prevention equipment. The pneumatic hydraulic pump system and the pneumatic grease injection pump system are provided with the sensor detection system. The pneumatic hydraulic pump system and the pneumatic grease injection pump system are connected to the electrical control system. The sensing detection system includes a pressure sensor, a temperature sensor and a liquid level sensor.

2. The remotely controllable grease injection hydraulic control device according to claim 1, characterized in that: The grease injection hydraulic control device also includes a manual hydraulic pump system, which is connected to the control valve of the cable blowout prevention equipment and is used to supply oil to the cable blowout prevention equipment.

3. The remotely controllable grease injection hydraulic control device according to claim 2, characterized in that: The pressure sensor is arranged on the first hydraulic pump system, the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system and the cable blowout prevention equipment; the temperature sensor and the liquid level sensor are arranged in the first hydraulic pump system, the second hydraulic pump system, the pneumatic grease injection pump system, the pneumatic hydraulic pump system, the manual hydraulic pump system and the sealing grease box; the pressure sensor, the temperature sensor and the liquid level sensor are connected to the electrical control system.

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