CN214365995U - Well head control panel - Google Patents
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- CN214365995U CN214365995U CN202022902664.0U CN202022902664U CN214365995U CN 214365995 U CN214365995 U CN 214365995U CN 202022902664 U CN202022902664 U CN 202022902664U CN 214365995 U CN214365995 U CN 214365995U
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Abstract
The utility model discloses a well head control panel, it includes: a hydraulic drive system; the hydraulic driving system comprises a hydraulic pump set, a first safety overflow valve, a three-way valve, a water cooling tank, a waste oil tank and a safety valve control interface; the hydraulic pump set comprises a liquid outlet interface communicated with the three-way valve; the water cooling tank comprises a tank body and a cooling pipe arranged in the tank body, and two ends of the cooling pipe are respectively communicated with the three-way valve and the safety valve control interface; the first safety overflow valve is used for being opened when the hydraulic pressure in the pipeline is greater than or equal to a first preset hydraulic pressure and being closed when the hydraulic pressure in the pipeline is less than the first preset hydraulic pressure; the three-way valve is used for selectively communicating the cooling pipe with one of the liquid outlet interface and the waste oil tank. The wellhead control disc can meet the requirements of the thermal production well on high-temperature and high-pressure working conditions.
Description
Technical Field
The utility model relates to an oil gas engineering technique, more specifically relates to a well head control panel.
Background
Marine oil recovery regulations provide: in the process of oil and gas exploitation, an underground safety valve is installed in each oil and gas well with the self-spraying or self-overflowing capacity. The wellhead control panel is an important ground device for controlling the opening and closing of an underground safety valve and guaranteeing the safe production of an oil-gas well. The well head control panel has the logic control function, and when the offshore platform breaks out a fire or suffers other serious disasters, the control system can realize remote emergency shut-off of the underground fluid channel, protect the safety of personnel and equipment, and avoid serious accidents such as marine pollution. Therefore, the wellhead control disc becomes an important component part for the safe and environment-friendly production of offshore oil and gas wells and the automatic control of the oil and gas wells.
For a conventional cold production well, a reliable wellhead control panel technology is formed at present, but the whole set of wellhead control panel system can resist the temperature of not more than 150 ℃ and is suitable for the cold production well. For a thermal production well, the working conditions of high temperature and high pressure are involved, the steam injection temperature can reach 370 ℃, and the steam injection pressure can reach 21 MPa; by using a wellhead control disc under the conventional cold production conditions, the hydraulic oil can have the risk of high-temperature coking, and even damage a control system, so that the underground safety valve cannot be controlled. Therefore, the wellhead control disc is used in the thermal production well, the system is required to be capable of adapting to high-temperature and high-pressure working conditions, the cooling and overpressure protection functions are achieved, and the underground fluid channel can be remotely and rapidly shut off in an emergency. Therefore, the current wellhead control disc has the following defects: the hydraulic oil is not resistant to high temperature, does not have a cooling function, is not timely decompressed, is unstable and unreliable in operation under a high-temperature working condition, and cannot meet the working condition requirement of a thermal production well for high temperature and high pressure.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a well head control panel, this kind of well head control panel can satisfy the highly compressed operating mode requirement of thermal recovery well high temperature.
This well head control panel includes: a hydraulic drive system;
the hydraulic driving system comprises a hydraulic pump set, a first safety overflow valve, a three-way valve, a water cooling tank, a waste oil tank and a safety valve control interface;
the hydraulic pump set comprises a liquid outlet interface communicated with the three-way valve;
the water cooling tank comprises a tank body and a cooling pipe arranged in the tank body, and two ends of the cooling pipe are respectively communicated with the three-way valve and the safety valve control interface;
one interface of the first safety overflow valve is communicated with a pipeline which communicates the liquid outlet interface with the three-way valve, and the other interface of the first safety overflow valve is communicated with the waste oil tank and is used for being opened when the hydraulic pressure in the pipeline is greater than or equal to a first preset hydraulic pressure and being closed when the hydraulic pressure in the pipeline is less than the first preset hydraulic pressure;
the three-way valve is used for selectively connecting and communicating the cooling pipe with one of the liquid outlet interface and the waste oil tank;
the safety valve control interface is used for being externally connected with a control port of the safety valve.
When high-temperature steam is injected into the well to heat thick oil in the well, the three-way valve is switched to connect the cooling pipe of the water cooling tank with the liquid outlet interface of the hydraulic pump set, so that the underground safety valve is in an open state. During heat injection, hydraulic oil near the underground safety valve is heated to expand so that hydraulic pressure at a control interface of the safety valve can rise rapidly, the hydraulic pressure is transmitted to the first safety overflow valve, when the hydraulic pressure is greater than first preset hydraulic pressure, the first safety overflow valve is opened to automatically release the pressure, and the hydraulic oil flows into a waste oil tank through the first safety overflow valve. When the first safety overflow valve is used for pressure relief, high-temperature hydraulic oil is cooled when flowing through the cooling pipe, and therefore the whole hydraulic driving system is protected from overtemperature and overpressure. Therefore, the wellhead control disc can be suitable for the high-temperature and high-pressure working conditions of the thermal production well and can be widely applied to the offshore heavy oil thermal production well.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.
Fig. 1 is a schematic structural diagram of a wellhead control disk in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Referring to fig. 1, fig. 1 shows a wellhead control disk 100 according to the present embodiment. The wellhead control disc 100 is mainly used for controlling the opening and closing of the downhole safety valve 7. The downhole safety valve 7 is provided with a hydraulic control interface 8, when the hydraulic pressure at the hydraulic control interface 8 is greater than or equal to a preset opening pressure, the downhole safety valve 7 is opened, and when the hydraulic pressure at the hydraulic control interface 8 is less than the preset opening pressure, the downhole safety valve 7 is automatically closed.
The wellhead control disk 100 includes a hydraulic drive system. The hydraulic driving system comprises an oil supply tank 1, a hydraulic pump set 2, a first safety overflow valve 15, a three-way valve 4, a water cooling tank 5, a waste oil tank 3 and a safety valve control interface 6.
The oil supply tank 1 is filled with hydraulic oil. The oil supply tank 1 has an oil outlet. The hydraulic oil in the oil supply tank 1 can be output from the oil outlet port 41.
The hydraulic pump unit 2 comprises an inlet port 13 and an outlet port 14. The liquid inlet interface 13 is communicated with an oil outlet 41 of the oil supply tank 1 through a pipeline. The hydraulic oil in the oil supply tank 1 can be delivered to the liquid inlet interface 13 and enters the hydraulic pump unit 2. The hydraulic pump set 2 pressurizes the hydraulic oil and outputs the pressurized hydraulic oil from the liquid outlet port 14.
In the present embodiment, the hydraulic pump group 2 comprises a pneumatic hydraulic pump 9, a manual hydraulic pump 10, a first check valve 11 and a second check valve 12.
The pneumatic hydraulic pump 9 includes a first inlet port 42 and a first outlet port 43. The first inlet 42 is connected to the inlet port 13 via a pipeline. The first liquid outlet 43 is connected to one port of the first check valve 11 through a pipeline, and the other port of the first check valve 11 is connected to the liquid outlet port 14 through a pipeline. The pneumatic hydraulic pump 9 can automatically pump hydraulic oil from the liquid inlet port 13 to the liquid outlet port 14 under the driving of pressure gas. In the first check valve 11, hydraulic oil can only flow from the pneumatic hydraulic pump 9 to the outlet port 14.
The manual hydraulic pump 10 includes a second inlet port 44 and a second outlet port 45. The second inlet 44 is connected to the inlet port 13 via a pipeline. The second liquid outlet 45 is connected to one port of the second check valve 12 through a pipeline, and the other port of the second check valve 12 is connected to the liquid outlet port 14 through a pipeline. The manual hydraulic pump 10 can pump hydraulic oil from the inlet port 13 to the outlet port 14 by manual force. In the second check valve 12, hydraulic oil can flow only from the manual hydraulic pump 10 to the outlet port 14.
In this way, in case of failure of the pneumatic hydraulic pump 9, the hydraulic oil can also be pressurized by the manual hydraulic pump 10, so that the pressure driving the downhole safety valve 7 is present in the pipeline downstream of the outlet port 14.
The waste oil tank 3 is used for collecting hydraulic oil. The waste oil tank 3 has an oil inlet 46. A level gauge 26 may be provided on the waste oil tank 3. The level gauge 26 is used to observe the level of the hydraulic oil in the waste oil tank 3.
The water cooling tank 5 is a cooling device. The water cooling tank 5 includes a tank body 20 and a cooling pipe 21 provided inside the tank body 20. The tank 20 contains a cooling fluid, which may be water. The tank 20 may be provided with a level gauge 22, the level gauge 22 being adapted to observe the level of the cooling fluid in the tank 20. The cooling pipe 21 extends spirally or serpentinely in the case 20. The cooling liquid is located outside the cooling pipe 21. The hydraulic oil can flow along the cooling pipe 21, and the hydraulic oil exchanges heat with the cooling liquid to reduce the temperature when flowing through the cooling pipe 21. One end of the cooling pipe 21 is connected to the relief valve control port 6 through a pipeline.
The three-way valve 4 has three ports, the first port is communicated with the other end of the cooling pipe 21 through a pipeline, the second port is communicated with the liquid outlet port 14 of the hydraulic pump group 2 through a pipeline, and the third port is communicated with the oil inlet 46 of the waste oil tank 3 through a pipeline. The three-way valve 4 is used for selectively communicating the cooling pipe 21 of the water cooling tank 5 with one of the liquid outlet port 14 of the hydraulic pump group 2 and the oil inlet 46 of the waste oil tank 3.
The first safety overflow valve 15 has two interfaces, one interface of the first safety overflow valve 15 is communicated with a pipeline which is communicated with the liquid outlet interface 14 of the hydraulic pump group 2 and the second interface of the three-way valve 4, and the other interface of the first safety overflow valve 15 is communicated with the oil inlet 46 of the waste oil tank 3. The first safety relief valve 15 is opened when the hydraulic pressure in a pipeline communicating the liquid outlet port 14 of the hydraulic pump group 2 with the second port of the three-way valve 4 is greater than or equal to a first preset hydraulic pressure, and is closed when the hydraulic pressure in the pipeline is less than the first preset hydraulic pressure, and the oil inlet 46 is communicated with the pipeline.
The downhole safety valve 7 is provided with a hydraulic control interface 8, when the hydraulic pressure at the hydraulic control interface 8 is greater than or equal to a preset opening pressure, the downhole safety valve 7 is opened, and when the hydraulic pressure at the hydraulic control interface 8 is less than the preset opening pressure, the downhole safety valve 7 is automatically closed.
The safety valve control interface 6 is used for being externally connected with a hydraulic control interface 8 of a downhole safety valve 7.
When the well needs to be opened, the hydraulic pump set 2 is started firstly. After the hydraulic pump unit 2 is started, hydraulic oil in the oil supply tank 1 is pressurized and pumped to the three-way valve 4, then the three-way valve 4 is switched to connect the cooling pipe 21 of the water cooling tank 5 with the liquid outlet port 14 of the hydraulic pump unit 2, and the hydraulic pressure of the hydraulic oil sequentially passes through the three-way valve 4, the cooling pipe 21 and the hydraulic control port 8 to reach the safety valve control port 6, so that the hydraulic pressure at the safety valve control port 6 is greater than the preset opening hydraulic pressure of the underground safety valve 7, and the underground safety valve 7 is opened.
During the period of injecting high-temperature steam into the well to heat thick oil in the well, the three-way valve 4 needs to be switched to connect the cooling pipe 21 of the water cooling tank 5 with the liquid outlet interface 14 of the hydraulic pump unit 2, so that the underground safety valve 7 is in an open state. During heat injection, hydraulic oil near the downhole safety valve 7 is heated to expand so that hydraulic pressure at the safety valve control interface 6 is rapidly increased, the hydraulic pressure is transmitted to the first safety overflow valve 15, when the hydraulic pressure is larger than a first preset hydraulic pressure, the first safety overflow valve 15 is opened to automatically release the pressure, and the hydraulic oil flows into the waste oil tank 3 through the first safety overflow valve 15. When the first safety relief valve 15 is relieved, the high-temperature hydraulic oil is cooled when flowing through the cooling pipe 21, so that the whole hydraulic driving system is protected from over-temperature and over-pressure. Therefore, the wellhead control disc 100 can be suitable for the high-temperature and high-pressure working conditions of the thermal production well and can be widely applied to the offshore heavy oil thermal production well.
When the well needs to be shut down, the three-way valve 4 is switched to connect the cooling pipe 21 of the water cooling tank 5 with one of the oil inlets 46 of the waste oil tank 3, and then hydraulic oil is discharged into the waste oil tank 3 from the cooling pipe 21, so that the hydraulic pressure at the safety valve control interface 6 is smaller than the preset opening pressure of the downhole safety valve 7, and the downhole safety valve 7 is closed.
In an exemplary embodiment, the hydraulic drive system further comprises a first pressure sensor 17. A first pressure sensor 17 is arranged on a line connecting the connection of the three-way valve 4 and the outlet connection 14 of the hydraulic pump package 2. The first pressure sensor 17 is used to measure the hydraulic pressure at the outlet port 14 of the hydraulic pump group 2.
The hydraulic drive system further comprises a hydraulic switch (not shown) for switching on and off the pneumatic hydraulic pump 9. The first pressure sensor 17 sends the hydraulic pressure at the liquid outlet port 14 to the pressure switch, and starts the pneumatic hydraulic pump 9 when the hydraulic pressure is less than a second preset hydraulic pressure, and closes the pneumatic hydraulic pump 9 when the hydraulic pressure is greater than or equal to the second preset hydraulic pressure. The second preset hydraulic pressure is smaller than the first preset hydraulic pressure corresponding to the first safety overflow valve 15 and is larger than the opening pressure of the downhole safety valve 7.
In this way, the hydraulic pressure at the outlet port 14 of the hydraulic pump group 2 can be kept at the second preset hydraulic pressure.
In an exemplary embodiment, the wellhead control panel 100 also includes a pneumatic control system. The pneumatic control system includes a gas supply interface 32 and a control valve 37. The air supply interface 32 is used for externally connecting an air supply pipeline. The gas supply line can inject compressed gas into the gas supply interface 32.
The first port 371 of the control valve 37 is connected to the gas supply port 32 via a line. The gas supply interface 32 supplies gas having a pressure greater than or equal to a first preset pressure to the control valve 37.
The three-way valve 4 is a pneumatic valve. The three-way valve 4 is provided with a control connection 47. The control port 47 is in line communication with a second port 372 of the control valve 37. The control valve 37 can connect the air supply port 32 to a control port 47 of the three-way valve 4. When the air pressure input by the control interface 47 is greater than or equal to the first preset air pressure, the three-way valve 4 is switched to a state of communicating the cooling pipe 21 of the water tank with the liquid outlet interface 14 of the hydraulic pump group 2. When the air pressure input by the control interface 47 is smaller than the first preset air pressure, the three-way valve 4 is switched to a state of communicating the cooling pipe 21 of the water cooling tank with the oil inlet 46 of the waste oil tank 3.
The third connection 373 of the control valve 37 is also connected to an exhaust (not shown). The control valve 37 can selectively connect the control port 47 of the three-way valve 4 to one of the air supply port 32 and the exhaust port.
When the control valve 37 connects the control port 47 of the three-way valve 4 with the air supply port 32, the air pressure input by the control port 47 of the three-way valve 4 is greater than the first preset air pressure, so that the three-way valve 4 is switched to connect the cooling pipe 21 of the water tank with the liquid outlet port 14 of the hydraulic pump group 2, and the downhole safety valve 7 is opened.
When the control valve 37 connects the control port 47 of the three-way valve 4 with the exhaust port, the gas at the control port 47 can be discharged from the exhaust port, and the air pressure at the control port 47 of the three-way valve 4 is decreased to make the air pressure input from the control port 47 smaller than the first preset air pressure, so that the three-way valve 4 is switched to connect the cooling pipe 21 of the water tank with the oil inlet 46 of the waste oil tank 3, and the downhole safety valve 7 is closed.
Therefore, the three-way valve 4 can be remotely opened and closed by manually operating the control valve 37, so that the control is safer and more convenient.
In an exemplary embodiment, the pneumatic control system further includes a fusible plug interface 39 for circumscribing a fusible plug 40. The fusible plug connection 39 is connected to a control connection 47 of the three-way valve 4. The fusible plug connection 39 may be a line that connects the control connection 47 of the three-way valve 4 to the control valve 37.
In the event of a fire, the fusible plug 40 melts and the pressure at the control port 47 of the three-way valve 4, which is connected to the fusible plug port 39, rapidly decreases, and when the pressure decreases below a first predetermined pressure, the downhole safety valve 7 closes.
In an exemplary embodiment, the power gas inlet 48 of the pneumatic hydraulic pump 9 is also in communication with the gas supply interface 32. The gas supply interface 32 can inject compressed gas into the power gas inlet 48 of the pneumatic hydraulic pump 9 to power the pneumatic hydraulic pump 9.
In an exemplary embodiment, the pneumatic control system further includes a first pressure regulating valve 36 and a second pressure regulating valve 35.
The first pressure regulating valve 36 is provided on a line connecting the power gas inlet 48 of the pneumatic hydraulic pump 9 with the gas supply port 32. The first pressure regulating valve 36 is used to regulate the gas pressure at the power gas inlet 48 of the pneumatic hydraulic pump 9 to a second preset gas pressure. The second preset air pressure may be a rated working pressure of the pneumatic hydraulic pump 9.
The second pressure regulating valve 35 is provided on a line connecting the control valve 37 with the air supply port 32. The second pressure regulating valve 35 is used to regulate the gas pressure entering the control valve 37 to a third preset gas pressure. The third preset air pressure may be the rated operating pressure of the control valve 37. The third predetermined air pressure is greater than the first predetermined air pressure.
In an exemplary embodiment, the hydraulic drive system further includes a restriction orifice 38. An orifice 38 is provided in a line connecting the control valve 37 to a fusible plug port 39.
In an exemplary embodiment, the hydraulic drive system further includes an accumulator 16. The accumulator 16 is arranged on a line connecting the outlet port 14 of the hydraulic pump unit 2 with the three-way valve 4. The accumulator 16 is able to store a certain amount of compression energy which, when the hydraulic pump unit 2 is not operating, is also able to supply the energy consumed by opening the downhole safety valve 7 several times. In addition, a portion of the compressed energy in the pipeline is stored when the instantaneous pressure in the pipeline is too high. The accumulator 16 can release a portion of the compression energy to the line to replenish the line pressure when the pressure in the line is insufficient, thereby keeping the pressure in the line stable.
In an exemplary embodiment, the water cooling tank 5 is provided with a breathing port 23 to facilitate the addition of cooling fluid. The waste oil tank 3 is provided with a breathing port 25, which is more convenient for inputting hydraulic oil. The oil supply tank 1 is provided with a breathing port 31, which facilitates the introduction of hydraulic oil.
In an exemplary embodiment, a first ball valve 24 is disposed on a drain port at the bottom of the tank body 20 of the water cooling tank 5, and the first ball valve 24 is opened to drain the coolant in the water cooling tank 5.
A second ball valve 27 is arranged on the oil discharge port at the bottom of the waste oil tank 3, and the second ball valve 27 can discharge the hydraulic oil in the waste oil tank 3 when opened.
An oil outlet 41 of the oil supply tank 1 is also provided with a third ball valve 28, and the third ball valve 28 can open and close the oil outlet 41.
A fourth ball valve 29 is further disposed at the oil discharge port of the oil supply tank 1, and when the fourth ball valve 29 is opened, the hydraulic oil in the oil supply tank 1 can be discharged.
In one exemplary embodiment, the hydraulic drive system is also provided with a manual pressure relief valve 18. One port of the manual pressure relief valve 18 communicates with a line that communicates the outlet port 14 of the hydraulic pump with the three-way valve 4. When the pressure in the pipeline is too high and the first safety relief valve 15 fails, it can be relieved by manually slowly opening the manual pressure relief valve 18.
In an exemplary embodiment, the hydraulic drive system further comprises a first filter 19, the first filter 19 being arranged on a line downstream of the oil outlet 41 of the oil supply tank 1. The first filter 19 is used for filtering the hydraulic oil output by the oil outlet 41.
In an exemplary embodiment, the pneumatic control system further includes a second filter 33. A second filter 33 is provided on the downstream line of the gas supply interface 32 for filtering the gas output by the gas supply interface 32.
In one exemplary embodiment, the pneumatic control system further includes a second safety relief valve 34. A second safety relief valve 34 is provided on the line downstream of the second filter 33 for opening when the gas pressure in the line is greater than or equal to a fourth preset gas pressure and for closing when the gas pressure in the line is less than the fourth preset gas pressure. In this way, the second safety relief valve 34 can make the air pressure in the pipeline smaller than the fourth preset air pressure, so that the pneumatic control system is safer.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", "square structure", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, cannot be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A wellhead control disk, comprising: a hydraulic drive system;
the hydraulic driving system comprises a hydraulic pump set, a first safety overflow valve, a three-way valve, a water cooling tank, a waste oil tank and a safety valve control interface;
the hydraulic pump set comprises a liquid outlet interface communicated with the three-way valve;
the water cooling tank comprises a tank body and a cooling pipe arranged in the tank body, and two ends of the cooling pipe are respectively communicated with the three-way valve and the safety valve control interface;
one interface of the first safety overflow valve is communicated with a pipeline which communicates the liquid outlet interface with the three-way valve, and the other interface of the first safety overflow valve is communicated with the waste oil tank and is used for being opened when the hydraulic pressure in the pipeline is greater than or equal to a first preset hydraulic pressure and being closed when the hydraulic pressure in the pipeline is less than the first preset hydraulic pressure;
the three-way valve is used for selectively connecting and communicating the cooling pipe with one of the liquid outlet interface and the waste oil tank;
the safety valve control interface is used for being externally connected with a control port of the safety valve.
2. The wellhead control disk as claimed in claim 1, further comprising a pneumatic control system;
the pneumatic control system comprises an air supply interface for externally connecting an air supply pipeline and a control valve communicated with the air supply interface;
the gas supply interface is used for conveying gas with the gas pressure greater than or equal to a first preset gas pressure to the control valve;
the three-way valve is a pneumatic valve, a control interface of the three-way valve is connected with the control valve, the cooling pipe is communicated with the liquid outlet interface when the air pressure input by the control interface is greater than or equal to a first preset air pressure, and the cooling pipe is communicated with the waste oil tank when the air pressure input by the control interface is less than the first preset air pressure;
the control valve is also in communication with an exhaust port for selectively communicating the control interface with one of the air supply interface and the exhaust port.
3. A wellhead control disc as claimed in claim 2, wherein the pneumatic control system further comprises a fusible plug interface for externally connecting a fusible plug;
the fusible plug interface is also communicated with a pipeline connecting the control interface and the control valve.
4. The wellhead control disc as claimed in claim 2, wherein the hydraulic drive system further comprises an oil supply tank, and the oil supply tank is communicated with a liquid inlet interface of the hydraulic pump set.
5. The wellhead control disk according to claim 4, characterized in that the hydraulic pump group comprises a pneumatic hydraulic pump, a manual hydraulic pump, a first check valve and a second check valve;
the pneumatic hydraulic pump comprises a first liquid inlet communicated with the liquid inlet interface and a first liquid outlet communicated with the first one-way valve;
the first one-way valve is also communicated with the liquid outlet interface and is used for preventing liquid from flowing to the pneumatic hydraulic pump from the liquid outlet interface;
the manual hydraulic pump comprises a second liquid inlet communicated with the liquid inlet interface and a second liquid outlet communicated with the second one-way valve;
the second one-way valve is also communicated with the liquid outlet interface and is used for preventing liquid from flowing to the manual hydraulic pump from the liquid outlet interface;
and the power gas inlet of the pneumatic hydraulic pump is also communicated with the gas supply interface.
6. The wellhead control disk according to claim 5, wherein the pneumatic control system further comprises a first pressure regulating valve and a second pressure regulating valve;
the first pressure regulating valve is arranged on a pipeline connecting the power gas inlet with the gas supply interface and used for regulating the gas pressure at the power gas inlet to a second preset gas pressure of the pneumatic hydraulic pump;
the second pressure regulating valve is arranged on a pipeline which connects the control valve with the gas supply interface and is used for regulating the gas pressure entering the control valve to a third preset gas pressure.
7. Wellhead control disc according to claim 3,
the pneumatic control system further includes an orifice disposed in a line connecting the control valve to the fusible plug interface.
8. Wellhead control disc according to claim 1,
the hydraulic driving system further comprises an energy accumulator, and the energy accumulator is arranged on a pipeline which connects the liquid outlet port with the three-way valve.
9. Wellhead control disc according to claim 4,
the water-cooling tank, the waste oil tank and all be provided with on the fuel feeding case and breathe the mouth.
10. Wellhead control disc according to claim 1,
the hydraulic driving system is also provided with a manual pressure relief valve, and one interface of the manual pressure relief valve is communicated with a pipeline which communicates the liquid outlet interface with the three-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902664.0U CN214365995U (en) | 2020-12-03 | 2020-12-03 | Well head control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902664.0U CN214365995U (en) | 2020-12-03 | 2020-12-03 | Well head control panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214365995U true CN214365995U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022902664.0U Active CN214365995U (en) | 2020-12-03 | 2020-12-03 | Well head control panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214365995U (en) |
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2020
- 2020-12-03 CN CN202022902664.0U patent/CN214365995U/en active Active
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