CN111720094A - Gas-collecting gas well remote switch valve core, equipment and use method thereof - Google Patents
Gas-collecting gas well remote switch valve core, equipment and use method thereof Download PDFInfo
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- CN111720094A CN111720094A CN202010633799.3A CN202010633799A CN111720094A CN 111720094 A CN111720094 A CN 111720094A CN 202010633799 A CN202010633799 A CN 202010633799A CN 111720094 A CN111720094 A CN 111720094A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003860 storage Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 238000009530 blood pressure measurement Methods 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010926 purge Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 64
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000005070 sampling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 150000004677 hydrates Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
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- 238000010276 construction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/16—Control means therefor being outside the borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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Abstract
The invention discloses a gas-collecting gas well remote switch valve core, equipment and a using method thereof, wherein the gas-collecting gas well remote switch valve core comprises a valve core valve rod base, a valve core valve rod and a valve core, wherein the valve core valve rod is connected to the upper surface of the valve core valve rod base; the outer side of the valve core and valve rod base is connected with a valve core sleeve, the valve core and valve rod are located in the valve core sleeve, the outer wall of the valve core and valve rod is sleeved with a spring, the inner wall of the valve core sleeve is further connected with a sliding bearing, a valve core and valve rod hole is formed in the valve core, the valve core is inserted into the valve core sleeve, the valve core and valve rod are inserted into the valve core and valve rod hole, the outer wall of the bottom of the valve core is connected with a threaded block, the threaded block is connected with the inner wall of. The eddy flow is formed by the eddy flow blades to purge the hydrate, so that the problems that the well opening failure is caused by ice blockage of the hydrate easily generated at the downstream of the valve core in the conventional electric needle valve technology and the emergency cut-off cannot be implemented are solved, meanwhile, the manual well opening is replaced, and manpower and material resources are saved.
Description
Technical Field
The invention belongs to the field of natural gas exploitation, and particularly relates to a gas-collecting gas well remote switch valve core, equipment and a using method of the valve core.
Background
The Suliger gas field is the largest natural gas field which has been found and realized in China, and has more than ten thousand wells, and the traditional mode has great management difficulty.
The Suliger gas field adopts a medium-low pressure gas collection mode, and a throttle is arranged in a gas well shaft. The throttling device can throttle and reduce pressure of natural gas and utilize low temperature for heating. The medium-low pressure gas collection mode can reduce the pressure of a ground system, reduce the investment of ground construction and prevent the generation of ground pipeline hydrates.
For the medium-low pressure gas collection gas well with ten thousand ports, the current well opening method mainly comprises manually operating a wellhead needle valve to throttle and reduce pressure to open the well when the well reaches a well site. Specifically, the gas well of well low pressure gas collection mode is under the condition that the shut-in time is longer, and gas well head gas production tree pressure can be higher than ground pipeline bearing pressure when the gas well is opened the well, can not the full open valve of instantaneous latus rectum and insert ground pipeline, but needs manual operation well head needle valve to carry out the throttle step-down, after the certain time, make the gas pressure reduction of throttle ware top in the pit shaft after the choke ware lasts to take effect promptly in the pit to needle valve low reaches pressure is less than well head ground pipeline design pressure, can open the valve completely this moment and produce.
The inventor finds that the prior art has at least the following problems:
firstly, if adopt artifical switch well, the management degree of difficulty and operating cost are huge, are unfavorable for cost reduction and increase, and easily receive the restriction of nature and the artificial condition such as weather, road, the outer problem of supporting, are unfavorable for the fine-grained management. In addition, in the later production period of the gas well, the gas well needs to be frequently opened and closed, and the existing manual well opening method cannot meet the production requirement of an intelligent gas field.
Secondly, if the electric needle valve controlled remotely is used for remotely adjusting the well opening and closing, the problems that the downstream of the valve core of the electric needle valve is easy to generate hydrate ice blockage in the well opening process to cause the failure of well opening are solved, and the commercially available electric needle valve is limited by the principle, can only be closed at full speed in emergency, is slow in valve closing speed and long in time and cannot be cut off emergently.
Disclosure of Invention
The invention aims to provide a gas-collecting gas well remote switch valve core, equipment and a using method thereof, which simulate an artificial well opening process to control a throttling regulating valve to open a well, purge hydrates generated in the well opening process and emergently close the valve core in emergency.
The utility model aims at realizing the valve core of the gas collection well remote switch by the following technical means, which comprises a valve core valve rod base, a valve core valve rod and a valve core, wherein the valve core valve rod is connected with the upper surface of the valve core valve rod base; the outer side of the valve core and valve rod base is connected with a valve core sleeve, the valve core and valve rod are located in the valve core sleeve, the outer wall of the valve core and valve rod is sleeved with a spring, the inner wall of the valve core sleeve is further connected with a sliding bearing, a valve core and valve rod hole is formed in the valve core, the valve core is inserted into the valve core sleeve, the valve core and valve rod are inserted into the valve core and valve rod hole, the outer wall of the bottom of the valve core is connected with a threaded block, the threaded block is connected with the inner wall of.
Further, the thread block is positioned between the valve core and valve rod base and the sliding bearing.
Furthermore, a sealing ring is connected at the joint of the valve core and the valve core sleeve.
Furthermore, the included angle between the tangent line of the outer edge of the swirl vane and the central axis of the front rod of the valve core is 45 degrees, and the swirl vane has a swirl period.
Furthermore, the diameter of the valve core valve rod hole is suddenly reduced, the diameter of the part which is not contracted is equal to the diameter of the spring, the diameter of the part which is contracted is equal to the diameter of the valve core valve rod, and the front end of the spring is propped against the position where the diameter of the valve core valve rod hole is suddenly reduced.
Further, the tail end of the spring is connected with the surface of the valve core and valve rod base.
The utility model provides a gas collection gas well remote switch well equipment, includes valve body shell portion, and valve body shell portion rear end is connected with emergency cut-off portion and electric actuator, valve body shell portion is equipped with gas collection gas well remote switch case, and in the case front rod stretched into the low reaches cavity of valve body shell portion, emergency cut-off portion included lead screw and valve rod, the lead screw front end was connected to case valve rod base lower surface, and the other end was connected to the valve rod, and the other end of valve rod is connected with drive mechanism, and the drive mechanism rear end is connected with pneumatic linear unit, and pneumatic linear unit rear end is connected with electric actuator.
Further, the emergency cut-off part further comprises a filtering pressure reducing valve, a one-way valve and a gas storage tank which are sequentially connected end to end through pipelines, an inlet of the filtering pressure reducing valve is connected to a gas source, an outlet of the gas storage tank is connected to the pneumatic linear unit, and a solenoid valve is further connected to the pipeline between the gas storage tank and the pneumatic linear unit.
Further, valve body shell portion still is connected with pressure measurement, and pressure measurement includes pressure taking pipe and pressure transmitter, and pressure taking pipe one end communicates in the low reaches cavity with valve body shell portion, and the other end is connected to pressure transmitter through pressure taking cock.
A gas collection gas well remote switch well equipment use method, when opening the well, the electric executive part rotates, drive the pneumatic linear unit, the transmission mechanism, the valve rod to rotate together, the lead screw turns the rotation of the valve rod into the linear motion, push the valve core valve rod base and the valve core cover to move, in this process, the valve core position is not changed, the distance between the bottom end of the valve core and the valve core valve rod base is changed to simulate the manual well opening process, when the gas from the upstream of the valve body outer shell part passes through the swirl vane, the swirl generates the vortex, the vortex strips the hydrate at the downstream from the valve body and the inner wall of the pipeline, prevents the downstream from icing and blocking, when the well opening is carried out, under the pressure reduction and temperature rise effects caused by the vortex, the hydrate generating condition is destroyed, the hydrate particles are melted, the gas well mouth; when the well is shut down, the electric execution part rotates to push the valve core valve rod base to be attached to the bottom end of the valve core, and finally the valve core is seated on the valve core valve rod base to realize well shut-down; when the pressure transmitter detects that overpressure or underpressure occurs in the pipeline, the electromagnetic valve is opened, high-pressure gas of a gas source enters the pneumatic linear unit through the filtering pressure reducing valve, the one-way valve and the gas storage tank to drive the pneumatic linear unit to rotate, so that the transmission mechanism and the valve rod are driven to rotate, finally the valve core is seated on the valve core and valve rod base, emergency well closing is realized, the electromagnetic valve is closed after the well is closed, the gas does not enter the pneumatic linear unit any more, and the pneumatic linear unit enters a stop state.
The invention has the beneficial effects that: 1. the position relation between the valve core and valve rod base is changed, the automatic simulation of an artificial well opening process is realized, the throttle regulating valve is controlled to realize well opening, a vortex is formed by the swirl vanes to purge the hydrate, the problems that the well opening fails and emergency cut-off cannot be implemented due to ice blockage of the hydrate easily generated at the downstream of the valve core in the conventional electric needle valve technology are solved, meanwhile, the artificial well opening is replaced, and manpower and material resources are saved.
2. The pneumatic linear unit is driven to rotate by low-pressure gas, so that emergency well shut-in is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an electric actuator according to the present invention;
FIG. 3 is a schematic view of the cartridge configuration of the present invention;
1. a filtering pressure reducing valve; 2. a one-way valve; 3. a gas storage tank; 4. an electromagnetic valve; 6. a pneumatic linear unit; 7. a transmission mechanism; 8. a valve stem; 9. an intelligent electric execution unit display screen; 10. an intelligent electric execution unit button panel; 11-1, a valve core and valve rod seat; 11-2, a valve core and a valve rod; 12. a valve core sleeve; 13. a thread block; 14. a sliding bearing; 15. sealing; 16. a spring; 17. a valve core; 17-1, a valve core and a valve rod hole; 18. a valve core front rod; 19. a swirl vane; 20. a valve body housing portion; 21. an emergency cut-off unit; 22. an electric actuator; 23. a pressure sampling pipe; 24. taking a pressure cock; 25. a pressure transmitter; 26. an upstream flange; 27. a downstream flange.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Detailed Description
[ example 1 ]
As shown in fig. 3, the gas-collecting gas well remote switch valve core comprises a valve core valve rod base 11-1, a valve core valve rod 11-2 and a valve core 17, wherein the valve core valve rod 11-2 is connected to the upper surface of the valve core valve rod base 11-1; the outer side of the valve core and valve rod base 11-1 is connected with a valve core sleeve 12, a valve core and valve rod 11-2 is located in the valve core sleeve 12, the outer wall of the valve core and valve rod 11-2 is sleeved with a spring 16, the inner wall of the valve core sleeve 12 is also connected with a sliding bearing 14, a valve core and valve rod hole 17-1 is formed in the valve core 17, the valve core 17 is inserted into the valve core sleeve 12, the valve core and valve rod 11-2 is inserted into the valve core and valve rod hole 17-1, the outer wall of the bottom of the valve core 17 is connected with a threaded block 13, the threaded block 13 is connected with the inner wall of the valve core sleeve 12 in a sliding mode.
The valve core and valve rod base 11-1 and the valve core and valve rod 11-2 are integrally formed, the valve core and valve rod base 11-1 is connected with the valve core sleeve 12 through threads, and when the valve core and valve rod base 11-1 is pushed, the valve core and valve rod base 11-1, the valve core and valve rod 11-2 and the valve core sleeve 12 move together. The valve core 17 is inserted into the valve core sleeve 12, the outer wall of the valve core 17 is attached to the inner wall of the valve core sleeve 12, an upward valve core valve rod hole 17-1 is formed in the bottom of the valve core 17, and the valve core valve rod 11-2 is inserted into the valve core valve rod hole 17-1. The valve core valve rod 11-2 is externally sleeved with a spring 16, and the spring 16 is also inserted into a valve core valve rod hole 17-1.
The inner wall of the valve core sleeve 12 is also connected with a sliding bearing 14, and the outer wall of the valve core 17 is contacted with the inner wall of the sliding bearing 14, so that the valve core 17 and the sliding bearing 14 can slide relatively.
The front end of the valve core 17 is connected with a valve core front rod 18 and a swirl vane 19, and when the air flow passes through the swirl vane 19, a vortex flow is formed.
[ example 2 ]
As shown in fig. 3, on the basis of embodiment 1, the screw block 13 is located between the poppet stem base 11-1 and the sliding bearing 14. The inner diameter of the sliding bearing 14 is smaller than the outer diameter of the screw block 13, so that the screw block 13 is caught by the sliding bearing 14. The threaded block 13 is limited by the sliding bearing 14 and the valve core and valve rod base 11-1 to the farthest distance of moving back and forth.
And a sealing ring 15 is connected at the joint of the valve core 17 and the valve core sleeve 12.
The sealing ring 15 ensures the sealing of the valve core 17 and the valve core sleeve 12, and prevents other substances from entering the cavity between the valve core and the valve rod base 11-1 and the sliding bearing 14.
The included angle between the tangent line of the outer edge of the swirl vane 19 and the central axis of the front rod 18 of the valve core is 45 degrees, and the swirl vane 19 has a swirl period.
The diameter of the valve core valve rod hole 17-1 is suddenly reduced, the diameter of the part which is not contracted is equal to the diameter of the spring 16, the diameter of the part which is contracted is equal to the diameter of the valve core valve rod 11-2, and the front end of the spring 16 is propped against the position where the diameter of the valve core valve rod hole 17-1 is suddenly reduced. The valve core valve rod hole 17-1 is in a convex shape, the diameter of the valve core valve rod hole is shrunk once from bottom to top, the hole diameter before shrinking suddenly accommodates the valve core valve rod 11-2 and the spring 16 outside the valve core valve rod hole, the hole diameter after shrinking suddenly accommodates the valve core valve rod 11-2, and the front end of the spring 16 is propped against the shrinking suddenly of the valve core valve rod hole 17-1.
The tail end of the spring 16 is connected with the surface of the valve core and valve rod base 11-1. The end of the spring 16 is connected with the upper surface of the valve core and valve rod base 11-1, and the front end of the spring is propped against the position of the valve core and valve rod hole 17-1.
The diameter of the valve core sleeve 12 is reduced once from front to back from left to right as shown in fig. 3, a clamping groove is formed, the diameter of the corresponding valve core 17 is also contracted once, a boss is formed, when the bottom end of the valve core 17 contacts the upper surface of the valve core valve rod base 11-1, the boss and the clamping groove are also contacted with each other, and the boss and the clamping groove form a second limit structure. After the diameter of the valve core 17 is shrunk, the diameter is increased after a certain distance, the increased part is used for placing the sliding bearing 14, and the inner diameter of the sliding bearing 14 is equal to the inner diameter of the valve core sleeve 12 after the first shrinkage.
[ example 3 ]
As shown in fig. 1 to 3, on the basis of embodiment 2, a gas-collecting gas well remote switch well device includes a valve body housing part 20, the rear end of the valve body housing part 20 is connected with an emergency cut-off part 21 and an electric execution part 22, the valve body housing part 20 is provided with a gas-collecting gas well remote switch valve core, a valve core front rod 18 extends into a downstream cavity of the valve body housing part 20, the emergency cut-off part 21 includes a lead screw and a valve rod 8, the front end of the lead screw is connected to the lower surface of a valve core and valve rod base 11-1, the other end of the lead screw is connected to the valve rod 8, the other end of the valve rod 8 is connected with a transmission mechanism 7, the rear end of the transmission mechanism 7 is connected with a pneumatic linear.
The valve body shell part 20 mainly comprises three large chambers, wherein one is a valve core chamber for accommodating a valve core of the gas-collecting well remote switch well, the other is an upstream chamber and a downstream chamber which are connected with the upstream and the downstream of the valve core chamber, and the swirl blades 19 of the valve core of the gas-collecting well remote switch well extend into the downstream chamber, so that gas blown from the upstream chamber passes through the swirl blades 19 when entering the downstream chamber, thereby forming a vortex, and the vortex enhanced gas flow carries liquid to peel off and blow grown hydrate from the valve body and the inner wall of a pipeline to the downstream so as to prevent the downstream of the valve body shell part 20 from being frozen and blocked.
The valve body housing portion 20 is connected to the gas well wellhead production tree and downstream piping by upstream flange 26 and downstream flange 27.
The electric execution part 22 is composed of a controller and a motor, and the electric execution part 22 is provided with an intelligent electric execution unit display screen 9 and an intelligent electric execution unit button panel 10 for controlling the operation of the motor.
As shown in fig. 2, the rotation of the motor drives the pneumatic linear unit 6, the transmission mechanism 7 and the valve rod 8 in the emergency cut-off portion 21 to rotate in sequence, and the lead screw converts the rotation of the valve rod 8 into a linear motion, as shown in fig. 3, drives the valve core and the valve rod base 11-1 to move left and right. The entire emergency cut-off portion 21 functions as a transmission.
[ example 4 ]
On the basis of embodiment 3, as shown in fig. 3, the emergency cut-off portion 21 further includes a filter pressure reducing valve 1, a check valve 2 and an air storage tank 3 which are sequentially connected end to end through a pipeline, an inlet of the filter pressure reducing valve 1 is connected to an air source, an outlet of the air storage tank 3 is connected to a pneumatic linear unit 6, and a solenoid valve 4 is further connected to the pipeline between the air storage tank 3 and the pneumatic linear unit 6.
High-pressure gas in the gas source is filtered and decompressed by a filtering and decompressing valve 1 to obtain a low-pressure gas source, the low-pressure gas source enters a pneumatic linear unit 6 through a one-way valve 2, a gas storage tank 3 and an electromagnetic valve 4, the pneumatic linear unit 6 is driven to rotate, the transmission mechanism 7 and a valve rod 8 are driven by the rotation of the pneumatic linear unit 6, namely, a valve core and valve rod base 11-1 is driven to move to realize emergency well closing, after a controller of an electric execution part 22 detects that the whole device is completely closed, the electromagnetic valve 4 is closed, the low-pressure gas does not enter the pneumatic linear unit 6, the pneumatic linear unit 6 does not rotate any more, a vent valve is further arranged on the pneumatic linear unit 6, the vent valve is opened to discharge the low-pressure gas, the whole device is in a well closing state and enters a well opening standby state.
Valve body shell portion 20 still is connected with pressure measurement, and pressure measurement includes pressure taking pipe 23 and pressure transmitter 25, and pressure taking pipe 23 one end communicates in the low reaches cavity with valve body shell portion 20, and the other end is connected to pressure transmitter 25 through pressure taking cock 24.
The valve body shell part 20 is also provided with a pressure transmitter 25 which detects the pressure in the pipeline, when overpressure (which can be remotely or locally set in the electric execution part 22, and the typical value of the medium-low pressure gas collection well is generally set to be 4MPa) or underpressure (which can be remotely or locally set in the electric execution part 22, and the typical value of the medium-low pressure gas collection well is generally 0.5MPa) occurs, a signal is transmitted to the electric execution part 22, and the electric execution part opens the electromagnetic valve 4 to start emergency well closing. One end of the pressure sampling pipe 23 is communicated with the downstream cavity, the other end of the pressure sampling pipe is connected with a pressure transmitter 25, and a pressure sampling cock 24 is connected between the pressure sampling pipe 23 and the pressure transmitter 25.
[ example 5 ]
As shown in figures 1 to 3, a gas-collecting gas well remote well opening and closing device using method, when a well is opened, an electric execution part 22 rotates to drive a pneumatic linear unit 6, a transmission mechanism 7 and a valve rod 8 to rotate together, a lead screw converts the rotation of the valve rod 8 into linear motion to push a valve core valve rod base 11-1 and a valve core sleeve 12 to move, in the process, a valve core 17 is unchanged in position, the manual well opening process is simulated by changing the distance between the bottom end of the valve core 17 and the valve core valve rod base 11-1, when gas from an upstream of a valve body shell part 20 passes through a swirl vane 19, a vortex is generated to peel off downstream hydrates from a valve body and the inner wall of a pipeline, downstream icing and blockage are prevented, along with the well opening, under the pressure reduction and temperature rise effects caused by the vortex, hydrate generation conditions are damaged, hydrate particles are melted, a gas well head is fully opened, completing well opening; when the well is shut down, the electric execution part 22 rotates to push the valve core valve rod base 11-1 to be attached to the bottom end of the valve core 17, and finally the valve core 17 is seated on the valve core valve rod base 11-1 to realize well shut-down; when the pressure transmitter 25 detects that overpressure or underpressure occurs in the pipeline, the electromagnetic valve 4 is opened, high-pressure gas of a gas source enters the pneumatic linear unit 6 through the filtering and reducing valve 1, the one-way valve 2 and the gas storage tank 3 to drive the pneumatic linear unit 6 to rotate, so that the transmission mechanism 7 and the valve rod 8 are driven to rotate, finally the valve core 17 is seated on the valve core and valve rod base 11-1, emergency well closing is realized, the electromagnetic valve 4 is closed after the well is closed, the gas does not enter the pneumatic linear unit 6 any more, and the pneumatic linear unit 6 enters a stop state.
When a well is opened, the electric executing part 22 rotates to drive the pneumatic linear unit 6, the transmission mechanism 7 and the valve rod 8 to rotate together, the lead screw converts the rotation of the valve rod 8 into linear motion, and the valve core valve rod base 11-1 and the valve core sleeve 12 are pushed to move. As shown in FIG. 3, when the valve core stem base 11-1 and the valve core sleeve 12 are pushed to move rightwards, the valve core stem base 11-1 and the valve core 17 are in sliding connection instead of fixed connection, so that when the valve core sleeve 12 moves rightwards, the valve core does not move, and the spring 16 is in a relaxed state.
Hydrates may form downstream of the valve housing portion 20 during well opening due to throttling depressurization, which over time may cause the valve housing portion 20 to clog and cause failure of the well opening. In the well opening process, the swirl vanes 19 and the valve core front rod 18 can induce airflow in the airflow channel to generate vortex, vortex enhanced airflow carries liquid to strip and blow the grown hydrate to the downstream from the inner walls of the valve body and the pipeline so as to prevent the downstream of the outer shell of the valve body from being frozen and blocked, and after about 30 minutes, the heated natural gas in the gas well shaft destroys the hydrate generation condition under the pressure reduction and temperature rise effects of the underground throttle in the gas well shaft, so that hydrate particles are melted, the needle valve of the gas well head is fully opened, and the well opening process is completed.
When the well is closed, the electric execution part 22 rotates reversely to push the valve core and valve rod base 11-1 leftwards, along with the leftward movement of the valve core and valve rod base 11-1, the position of the valve core 17 is unchanged, the distance between the valve core and valve rod base 11-1 and the valve core 17 is gradually reduced, finally the valve core 17 and the valve core 17 are jointed, the valve core 17 is seated on the valve core and valve rod base 11-1, the jointing is realized, and the spring 16 is in a compressed state.
The emergency shut-in is similar to the emergency shut-in that the pneumatic linear unit 6 is driven to rotate by low-pressure gas instead of the electric actuator 22, which drives the pneumatic linear unit 6 to rotate by the rotation of the motor.
And the electric execution part 22 is also provided with a hand wheel 23, and the hand wheel 23 can be used for manually rotating to close the well under the condition of power failure or fault or other extreme conditions of the system.
The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.
Claims (10)
1. A gas collection gas well remote switch case which characterized in that: the valve core comprises a valve core and valve rod base (11-1), a valve core and valve rod (11-2) and a valve core (17), wherein the valve core and valve rod (11-2) is connected to the upper surface of the valve core and valve rod base (11-1); the valve core is characterized in that a valve core sleeve (12) is connected to the outside of a valve core valve rod base (11-1), a valve core valve rod (11-2) is located in the valve core sleeve (12), a spring (16) is sleeved on the outer wall of the valve core valve rod (11-2), a sliding bearing (14) is further connected to the inner wall of the valve core sleeve (12), a valve core valve rod hole (17-1) is formed in the valve core (17), the valve core (17) is inserted into the valve core sleeve (12), the valve core valve rod (11-2) is inserted into the valve core valve rod hole (17-1), a thread block (13) is connected to the outer wall of the bottom of the valve core (17), the thread block (13) is connected with the inner wall of the valve core sleeve (12) in a sliding mode, a valve core front rod (18).
2. The gas collecting well remote switch valve core as claimed in claim 1, characterized in that: the thread block (13) is positioned between the valve core and valve rod base (11-1) and the sliding bearing (14).
3. The gas collecting well remote switch valve core as claimed in claim 1, characterized in that: and a sealing ring (15) is connected at the joint of the valve core (17) and the valve core sleeve (12).
4. The gas collecting well remote switch valve core as claimed in claim 1, characterized in that: an included angle between the tangent line of the outer edge of the swirl vane (19) and the central axis of the front rod (18) of the valve core is 45 degrees, and the swirl vane (19) has a swirl wave period.
5. The gas collecting well remote switch valve core as claimed in claim 1, characterized in that: the diameter of the valve core valve rod hole (17-1) is suddenly reduced, the diameter of the part which is not contracted is equal to the diameter of the spring (16), the diameter of the part which is contracted is equal to the diameter of the valve core valve rod (11-2), and the front end of the spring (16) is propped against the diameter of the valve core valve rod hole (17-1).
6. The gas collecting well remote switch valve core as claimed in claim 1, characterized in that: the tail end of the spring (16) is connected with the surface of the valve core and valve rod base (11-1).
7. A gas collection gas well remote switch well equipment, includes valve body shell portion (20), its characterized in that: valve body shell portion (20) rear end is connected with urgent cutting part (21) and electronic execution portion (22), valve body shell portion (20) are equipped with gas collection gas well remote switch case, and case front rod (18) stretch into in the low reaches cavity of valve body shell portion (20), and urgent cutting part (21) are including lead screw and valve rod (8), and the lead screw front end is connected to case valve rod base (11-1) lower surface, and the other end is connected to valve rod (8), and the other end of valve rod (8) is connected with drive mechanism (7), and drive mechanism (7) rear end is connected with pneumatic linear unit (6), and pneumatic linear unit (6) rear end is connected with electronic execution portion (22).
8. The gas collecting well remote switch well device of claim 7, wherein: the emergency cut-off part (21) further comprises a filtering pressure reducing valve (1), a one-way valve (2) and a gas storage tank (3) which are sequentially connected end to end through a pipeline, an inlet of the filtering pressure reducing valve (1) is connected to a gas source, an outlet of the gas storage tank (3) is connected to a pneumatic linear unit (6), and a solenoid valve (4) is further connected to the pipeline between the gas storage tank (3) and the pneumatic linear unit (6).
9. The gas collecting well remote switch well device of claim 7, wherein: valve body shell portion (20) still are connected with pressure measurement, and pressure measurement is managed (23) and pressure transmitter (25) including getting, gets to manage in the low reaches cavity of (23) one end and valve body shell portion (20) intercommunication, and the other end is connected to pressure transmitter (25) through getting pressure cock (24).
10. A method for using gas-collecting gas well remote switch well equipment is characterized in that: when a well is opened, the electric execution part (22) rotates to drive the pneumatic linear unit (6), the transmission mechanism (7) and the valve rod (8) to rotate together, the lead screw converts the rotation of the valve rod (8) into linear motion to push the valve core valve rod base (11-1) and the valve core sleeve (12) to move, in the process, the position of the valve core (17) is unchanged, the manual well opening process is simulated by changing the distance between the bottom end of the valve core (12) and the valve core valve rod base (11-1), when the gas from the upstream of the valve body housing part (20) passes through the swirl vanes (19), generates vortex which peels off the hydrate at the downstream from the valve body and the inner wall of the pipeline, prevents the downstream from icing and blocking, and along with the well opening, under the action of pressure reduction and temperature rise caused by vortex, the hydrate generation condition is damaged, hydrate particles are melted, a needle valve at the wellhead of the gas well is fully opened, and well opening is finished; when the well is shut down, the electric execution part (22) rotates to push the valve core valve rod base (11-1) to be attached to the bottom end of the valve core (17), and finally the valve core (17) is seated on the valve core valve rod base (11-1) to realize well shut-down; when a pressure transmitter (25) detects that overpressure or underpressure occurs in a pipeline, the electromagnetic valve (4) is opened, high-pressure gas of a gas source enters the pneumatic linear unit (6) through the filtering pressure reducing valve (1), the one-way valve (2) and the gas storage tank (3) to drive the pneumatic linear unit (6) to rotate, so that the transmission mechanism (7) and the valve rod (8) are driven to rotate, finally the valve core (17) is seated on the valve core and valve rod base (11-1), emergency well closing is realized, the electromagnetic valve (4) is closed after the well is closed, gas does not enter the pneumatic linear unit (6) any more, and the pneumatic linear unit (6) enters a stop state.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412432A (en) * | 2020-12-10 | 2021-02-26 | 中国石油天然气股份有限公司 | Gas well opening ice blocking prevention device |
| CN112983408A (en) * | 2021-03-16 | 2021-06-18 | 西南石油大学 | Device and method for purging inert gas for preventing and controlling solid phase deposition during depressurization exploitation of hydrate |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2366846C1 (en) * | 2008-06-18 | 2009-09-10 | Селиванов Николай Павлович | Control valve |
| CN101573507A (en) * | 2006-11-02 | 2009-11-04 | 桑德克斯公司 | An apparatus for creating pressure pulses in the fluid of a bore hole |
| CN101787866A (en) * | 2010-02-25 | 2010-07-28 | 中国石油天然气股份有限公司 | Pilot-operated self-holding electromagnetic valve for gas well mouth |
| CN202645515U (en) * | 2012-05-25 | 2013-01-02 | 檀志远 | Self-actuated gas recovery device |
| CN103161424A (en) * | 2011-12-15 | 2013-06-19 | 中国石油天然气股份有限公司 | Gas well wellhead pressure reduction well opening device |
| CN103291241A (en) * | 2012-11-26 | 2013-09-11 | 中国石油天然气股份有限公司 | Gas well remote high-pressure well switching device and control method |
| CN104654647A (en) * | 2015-01-28 | 2015-05-27 | 北京航空航天大学 | Adaptive frozen-blocking prevention vortex tube within all cold flow rate range |
| CN204534129U (en) * | 2015-01-20 | 2015-08-05 | 中国石油天然气股份有限公司 | Anti-freezing and anti-blocking device |
| CN205064843U (en) * | 2015-09-17 | 2016-03-02 | 西安希佛隆阀门有限公司 | Sealed vice structure of well head needle type valve |
| US20160223089A1 (en) * | 2015-01-30 | 2016-08-04 | Pentair Flow Services Ag | Choke Valve Wear Monitoring System and Method |
| CN106439137A (en) * | 2016-10-14 | 2017-02-22 | 北京石油化工学院 | Low shearing plunger type throttling valve used for oil production gathering and transporting |
| CN206233898U (en) * | 2016-11-12 | 2017-06-09 | 王保明 | A kind of one-way valve on wellhead of oil prodn. well |
| US20170328153A1 (en) * | 2014-12-22 | 2017-11-16 | Halliburton Energy Services, Inc. | Shear mechanism for back pressure relief in chokes |
| CN206816887U (en) * | 2017-06-09 | 2017-12-29 | 西安希佛隆阀门有限公司 | A kind of HTHP difference tandem balanced type regulating valve |
| CN207974795U (en) * | 2018-02-18 | 2018-10-16 | 胡忠太 | A kind of water injection well flow control valve |
| CN209025649U (en) * | 2018-11-08 | 2019-06-25 | 张鹏 | A kind of oilfield gas injection production wellhead throttle valve |
| CN111287700A (en) * | 2018-12-09 | 2020-06-16 | 张洪新 | Oil well self-generating parameter acquisition and casing gas recovery control device |
| US20200224513A1 (en) * | 2018-09-19 | 2020-07-16 | Intelligent Wellhead Systems Inc. | Apparatus, system and process for regulating a control mechanism of a well |
| CN212428722U (en) * | 2020-07-02 | 2021-01-29 | 中国石油天然气股份有限公司 | Gas collection gas well remote switch case and equipment |
-
2020
- 2020-07-02 CN CN202010633799.3A patent/CN111720094A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573507A (en) * | 2006-11-02 | 2009-11-04 | 桑德克斯公司 | An apparatus for creating pressure pulses in the fluid of a bore hole |
| RU2366846C1 (en) * | 2008-06-18 | 2009-09-10 | Селиванов Николай Павлович | Control valve |
| CN101787866A (en) * | 2010-02-25 | 2010-07-28 | 中国石油天然气股份有限公司 | Pilot-operated self-holding electromagnetic valve for gas well mouth |
| CN103161424A (en) * | 2011-12-15 | 2013-06-19 | 中国石油天然气股份有限公司 | Gas well wellhead pressure reduction well opening device |
| CN202645515U (en) * | 2012-05-25 | 2013-01-02 | 檀志远 | Self-actuated gas recovery device |
| CN103291241A (en) * | 2012-11-26 | 2013-09-11 | 中国石油天然气股份有限公司 | Gas well remote high-pressure well switching device and control method |
| US20170328153A1 (en) * | 2014-12-22 | 2017-11-16 | Halliburton Energy Services, Inc. | Shear mechanism for back pressure relief in chokes |
| CN204534129U (en) * | 2015-01-20 | 2015-08-05 | 中国石油天然气股份有限公司 | Anti-freezing and anti-blocking device |
| CN104654647A (en) * | 2015-01-28 | 2015-05-27 | 北京航空航天大学 | Adaptive frozen-blocking prevention vortex tube within all cold flow rate range |
| US20160223089A1 (en) * | 2015-01-30 | 2016-08-04 | Pentair Flow Services Ag | Choke Valve Wear Monitoring System and Method |
| CN205064843U (en) * | 2015-09-17 | 2016-03-02 | 西安希佛隆阀门有限公司 | Sealed vice structure of well head needle type valve |
| CN106439137A (en) * | 2016-10-14 | 2017-02-22 | 北京石油化工学院 | Low shearing plunger type throttling valve used for oil production gathering and transporting |
| CN206233898U (en) * | 2016-11-12 | 2017-06-09 | 王保明 | A kind of one-way valve on wellhead of oil prodn. well |
| CN206816887U (en) * | 2017-06-09 | 2017-12-29 | 西安希佛隆阀门有限公司 | A kind of HTHP difference tandem balanced type regulating valve |
| CN207974795U (en) * | 2018-02-18 | 2018-10-16 | 胡忠太 | A kind of water injection well flow control valve |
| US20200224513A1 (en) * | 2018-09-19 | 2020-07-16 | Intelligent Wellhead Systems Inc. | Apparatus, system and process for regulating a control mechanism of a well |
| CN209025649U (en) * | 2018-11-08 | 2019-06-25 | 张鹏 | A kind of oilfield gas injection production wellhead throttle valve |
| CN111287700A (en) * | 2018-12-09 | 2020-06-16 | 张洪新 | Oil well self-generating parameter acquisition and casing gas recovery control device |
| CN212428722U (en) * | 2020-07-02 | 2021-01-29 | 中国石油天然气股份有限公司 | Gas collection gas well remote switch case and equipment |
Non-Patent Citations (3)
| Title |
|---|
| 徐文龙;梁博羽;李彦彬;梁倚维;: "苏里格气田高压气井远程自动开关井技术", 石油化工应用, no. 09 * |
| 李达;冯朋鑫;徐文龙;张剑峰;: "苏里格气井井下节流降压集气技术", 石油化工应用, no. 05 * |
| 赖海涛;梁凌云;曾萍;田发国;: "一种远程控制开关井装置的研制及应用", 石油化工应用, no. 04 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412432A (en) * | 2020-12-10 | 2021-02-26 | 中国石油天然气股份有限公司 | Gas well opening ice blocking prevention device |
| CN112983408A (en) * | 2021-03-16 | 2021-06-18 | 西南石油大学 | Device and method for purging inert gas for preventing and controlling solid phase deposition during depressurization exploitation of hydrate |
| CN112983408B (en) * | 2021-03-16 | 2022-03-11 | 西南石油大学 | Device and method for purging inert gas for preventing and controlling solid phase deposition during depressurization exploitation of hydrate |
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