CN117189007B - Oil field high pressure well does not release pressure and trades valve gear - Google Patents

Oil field high pressure well does not release pressure and trades valve gear Download PDF

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Publication number
CN117189007B
CN117189007B CN202311233826.8A CN202311233826A CN117189007B CN 117189007 B CN117189007 B CN 117189007B CN 202311233826 A CN202311233826 A CN 202311233826A CN 117189007 B CN117189007 B CN 117189007B
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fixedly connected
pressure
oil field
pump
relief valve
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CN117189007A (en
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胡超洋
王凤娇
张开鑫
张军
张健伟
徐贺
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Northeast Petroleum University
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Northeast Petroleum University
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Abstract

The invention provides a non-pressure-relief valve-changing device for an oilfield high-pressure water well. The oil field high-pressure water well non-pressure relief valve changing device comprises a vertical fixed metal sleeve, wherein the inner surface of the vertical fixed metal sleeve is slidably connected with an air pump, the output end of the air pump is fixedly connected with an air inlet pipe, the output end of the air pump is fixedly connected with an air outlet pipe, the outer surface of the air outlet pipe is fixedly connected with an anti-corrosion elastic air bag, a cavity is formed in the anti-corrosion elastic air bag, and the inner surface of the cavity is fixedly connected with an electric water pump. This oil field high pressure well does not release and trades valve device, through design shielding device, anticorrosion type elastic air bag and electric water pump, realizes changing the valve under the condition of not releasing pressure to take out the inside water of water pipe to one side that does not maintain through electric water pump, and then avoid appearing spilling the problem that leaks, increase the effect of clearance, and can be applicable to the pipeline of different diameters through anticorrosion type elastic air bag.

Description

Oil field high pressure well does not release pressure and trades valve gear
Technical Field
The invention relates to the technical field of non-pressure-relief valve-changing devices, in particular to a non-pressure-relief valve-changing device for an oilfield high-pressure well.
Background
The device is used for maintaining high pressure state and switching valves in water well operation to avoid pressure leakage and operation interruption. The device is generally used for operations such as oilfield flooding, fracturing, productivity testing and the like. Generally comprises the following main components: the key component in the device is a valve for controlling the on-off and switching of the fluid. These valves typically have high pressure sealing capability and corrosion resistance to accommodate high pressure well environments. The non-pressure relief valve changing device is usually equipped with a pressure control system for monitoring and controlling the pressure of the water well. This may include pressure sensors, pressure regulators, pressure displays, etc. to ensure that the proper pressure is maintained when switching the valve. The valve changing device requires a driving mechanism to operate the opening and closing of the valve. This may be a manually operated, hydraulic or pneumatic drive system, depending on the design and requirements of the device. A valve change device without pressure relief needs to have a reliable sealing and leak-proof system to ensure that no fluid leakage occurs when switching valves. This may include gaskets, seals, seal threads, and the like.
The applicant has found that, through searching, the chinese patent discloses a valve-changing device and a valve-changing method for an oilfield high-pressure water well, the application number of which is CN201510330554.2, the valve-changing device can reduce the risk of valve-changing, can perform valve-changing operation without pollution, can save most of labor force and save most of time, but the device has the problem of leakage of liquid in a pipeline between the device and a valve in the use process, so according to the invention of the applicant, the invention provides a valve-changing device for an oilfield high-pressure water well, which solves the problem of leakage of liquid in the pipeline.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides a device for replacing a valve of an oilfield high-pressure water well without pressure relief, which solves the problem of leakage of liquid in a pipeline.
(II) technical scheme
In order to achieve the above purpose, the invention is realized by the following technical scheme: an oil field high pressure water well non-pressure release valve changing device, comprising:
The anti-corrosion type electric water heater comprises a vertical type fixed metal sleeve, wherein an air pump is slidably connected to the inner surface of the vertical type fixed metal sleeve, an air inlet pipe is fixedly connected to the output end of the air pump, an air outlet pipe is fixedly connected to the output end of the air pump, an anti-corrosion type elastic air bag is fixedly connected to the outer surface of the air outlet pipe, a cavity is formed in the anti-corrosion type elastic air bag, an electric water pump is fixedly connected to the inner surface of the cavity, a first flange is fixedly connected to the outer surface of the vertical type fixed metal sleeve, and a first bolt is arranged in the first flange;
The shielding device comprises a hard shell, a flow hole, a first electric telescopic rod and a horizontal circular flow baffle, wherein the right inner wall of the hard shell is fixedly connected with the first electric telescopic rod, and the output end of the first electric telescopic rod is fixedly connected with the horizontal circular flow baffle;
the fixed cylinder is arranged between the shielding device and the anti-corrosion elastic air bag;
The electric telescopic device comprises a top plate, wherein a second electric telescopic rod is fixedly connected to the lower surface of the top plate, a magnet is fixedly connected to the output end of the second electric telescopic rod, a round metal sealing plate is magnetically connected to the lower surface of the magnet, a lateral threaded hole is formed in the side surface of the round metal sealing plate, and a second sealing type bolt hole is formed in the upper surface of the top plate.
Preferably: the upper end of the air inlet pipe extends to the upper end of the vertical fixed metal sleeve, and one end of the air outlet pipe, which is far away from the air pump, extends to the inside of the anti-corrosion elastic air bag.
Preferably: the electric water pump is characterized in that the input end of the electric water pump is fixedly connected with a water inlet pipe, the output end of the electric water pump is fixedly connected with a one-way valve, and the diameter of the electric water pump is smaller than the inner diameter of the fixed cylinder, so that the anti-corrosion elastic air bag and the electric water pump can be taken out conveniently.
Preferably: the lower end of the first bolt sequentially extends to the hard shell and the inside of the fixed cylinder, and the number of the first bolts is three.
Preferably: the circulating hole is positioned on the upper surface and the lower surface of the hard shell, the horizontal circular flow baffle is in sliding connection with the inner surface of the hard shell, the lower surface of the shielding device is in contact with the fixed cylinder, the upper surface of the shielding device is in contact with the first flange, and an elastic layer is arranged on the outer surface of the horizontal circular flow baffle.
Preferably: the circular metal sealing plate is made of stainless iron, and the lateral threaded holes are distributed in a plurality of annular arrays.
Preferably: the fixed metal sleeve of vertical type's upper surface fixedly connected with first metal solid fixed ring, the upper surface of first metal solid fixed ring is provided with first sealed bolt hole, the quantity of first sealed bolt hole is a plurality of and annular distribution.
Preferably: the electric water pump is internally provided with a power supply, and the first electric telescopic rod, the second electric telescopic rod and the air pump are electrically connected with an external power supply.
(III) beneficial effects
The invention provides a non-pressure-relief valve-changing device for an oilfield high-pressure water well. The beneficial effects are as follows:
this oil field high pressure well does not release and trades valve device, through design shielding device, anticorrosion type elastic air bag and electric water pump, realizes changing the valve under the condition of not releasing pressure to take out the inside water of water pipe to one side that does not maintain through electric water pump, and then avoid appearing spilling the problem that leaks, increase the effect of clearance, and can be applicable to the pipeline of different diameters through anticorrosion type elastic air bag.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;
FIG. 4 is a schematic view of a shielding device according to the present invention;
Fig. 5 is a schematic diagram of the overall structure of the present invention.
Wherein, 1, fixing the metal sleeve vertically; 2. a first metal fixing ring; 3. a first sealed bolt hole; 4. a first flange; 5. a shielding device; 6. a fixed cylinder; 7. an anti-corrosion elastic air bag; 8. an electric water pump; 9. a one-way valve; 10. an air outlet pipe; 11. a first bolt; 12. a water inlet pipe; 13. a cavity; 14. a hard shell; 15. a first electric telescopic rod; 16. a horizontal circular baffle plate; 17. a flow hole; 18. a top plate; 19. a second sealed bolt hole; 20. a second electric telescopic rod; 21. a magnet; 22. a circular metal sealing plate; 23. a lateral threaded hole; 24. an air pump; 25. and an air inlet pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-5, the embodiment of the invention provides a non-pressure-relief valve-changing device for an oilfield high-pressure water well, which comprises a vertical fixed metal sleeve 1, wherein a first metal fixing ring 2 is fixedly connected to the upper surface of the vertical fixed metal sleeve 1 and used for fixing a top plate 18, a plurality of first sealing bolt holes 3 are arranged on the upper surface of the first metal fixing ring 2, the number of the first sealing bolt holes 3 is distributed annularly, an air pump 24 is slidingly connected to the inner surface of the vertical fixed metal sleeve 1 and used for pumping an anti-corrosion elastic air bag 7, an air inlet pipe 25 is fixedly connected to the output end of the air pump 24 and used for inflow of air, the upper end of the air inlet pipe 25 extends to the upper end of the vertical fixed metal sleeve 1, one end of an air outlet pipe 10 away from the air pump 24 extends to the inside of the anti-corrosion elastic air bag 7, the output end fixedly connected with air-out pipe 10 of air pump 24, the surface fixedly connected with anticorrosion formula elastic air bag 7 of air-out pipe 10, anticorrosion formula elastic air bag 7's inside forms cavity 13, cavity 13's internal surface fixedly connected with electric water pump 8, electric water pump 8 embeds the power, first electric telescopic handle 15, second electric telescopic handle 20, air pump 24 all with external power electric connection, electric water pump 8's input fixedly connected with inlet tube 12, be used for drawing water, electric water pump 8's output fixedly connected with check valve 9, electric water pump 8's diameter is less than the internal diameter of fixed section of thick bamboo 6, be used for being convenient for take out anticorrosion formula elastic air bag 7 and electric water pump 8, vertical type fixed metal sleeve 1's surface fixedly connected with first flange 4, the inside of first flange 4 is provided with first bolt 11, the lower extreme of first bolt 11 extends to stereoplasm shell 14 in proper order, the number of first bolts 11 is three inside the fixed cylinder 6.
The shielding device 5 is used for sealing when the circular metal sealing plate 22 is installed, the shielding device 5 comprises a hard shell 14, a circulation hole 17, a first electric telescopic rod 15 and a horizontal circular flow blocking plate 16, the circulation hole 17 is used for limiting flow, the circulation hole 17 is positioned on the upper surface and the lower surface of the hard shell 14, the horizontal circular flow blocking plate 16 is slidably connected with the inner surface of the hard shell 14, the lower surface of the shielding device 5 is contacted with the fixed cylinder 6, the upper surface of the shielding device 5 is contacted with the first flange, an elastic layer is arranged on the outer surface of the horizontal circular flow blocking plate 16, the right inner wall of the hard shell 14 is fixedly connected with the first electric telescopic rod 15, and the output end of the first electric telescopic rod 15 is fixedly connected with the horizontal circular flow blocking plate 16;
a fixed cylinder 6, wherein the fixed cylinder 6 is arranged between the shielding device 5 and the anti-corrosion elastic air bag 7;
The roof 18, the lower fixed surface of roof 18 is connected with second electric telescopic handle 20, the output fixedly connected with magnet 21 of second electric telescopic handle 20 for produce the suction, the lower surface magnetism of magnet 21 is connected with circular metal closing plate 22, and circular metal closing plate 22's material is the stainless iron, and the quantity of side direction screw hole 23 is a plurality of and annular array distribution, and circular metal closing plate 22's side surface is provided with side direction screw hole 23, and the upper surface of roof 18 is provided with second sealed bolt hole 19 for fix this device.
Working principle: when the valve is replaced, the device is placed on the upper side of the valve in the pipeline, the fixed cylinder 6 is connected with an overhaul port in the pipeline, the vertical fixed metal sleeve 1 is placed in the vertical fixed metal sleeve 1 and moves upwards slowly, liquid is prevented from being directly sprayed out, the lateral threaded holes 23 of the circular metal sealing plate 22 are loosened, the circular metal sealing plate 22 is ejected to the upper side of the shielding device 5 under the action of pressure, the horizontal circular flow blocking plate 16 is pushed to the left side to be closed through the first electric telescopic rod 15, the circular metal sealing plate 22 is taken out of the vertical fixed metal sleeve 1, the size of the anti-corrosion elastic air bag 7 is adjusted and pressed downwards, the anti-corrosion elastic air bag 7 is pressed into the pipeline to be overhauled after the horizontal circular flow blocking plate 16 is opened, liquid is pushed to the left side of the pipeline, the valve is replaced again, after the valve replacement is completed, the circular metal sealing plate 22 is placed in the inner part of the first metal fixing ring 2, and the circular sealing plate 22 is installed in the pipeline by the horizontal circular flow blocking plate 16 through the second electric telescopic rod 20, namely the circular sealing plate 22 can be detached from the pipeline.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides an oil field high pressure well does not release pressure and trades valve gear which characterized in that includes:
The anti-corrosion type air pump comprises a vertical type fixed metal sleeve (1), wherein an air pump (24) is slidably connected to the inner surface of the vertical type fixed metal sleeve (1), an air inlet pipe (25) is fixedly connected to the output end of the air pump (24), an air outlet pipe (10) is fixedly connected to the output end of the air pump (24), an anti-corrosion type elastic air bag (7) is fixedly connected to the outer surface of the air outlet pipe (10), a cavity (13) is formed in the anti-corrosion type elastic air bag (7), an electric water pump (8) is fixedly connected to the inner surface of the cavity (13), a first flange (4) is fixedly connected to the outer surface of the vertical type fixed metal sleeve (1), and a first bolt (11) is arranged in the first flange (4);
The shielding device (5), the shielding device (5) comprises a hard shell (14), a circulation hole (17), a first electric telescopic rod (15) and a horizontal circular flow baffle (16), the right inner wall of the hard shell (14) is fixedly connected with the first electric telescopic rod (15), and the output end of the first electric telescopic rod (15) is fixedly connected with the horizontal circular flow baffle (16);
a fixed cylinder (6), wherein the fixed cylinder (6) is arranged between the shielding device (5) and the anti-corrosion elastic air bag (7);
Roof (18), the lower surface fixedly connected with second electric telescopic handle (20) of roof (18), the output fixedly connected with magnet (21) of second electric telescopic handle (20), the lower surface magnetism of magnet (21) is connected with circular metal closing plate (22), the side surface of circular metal closing plate (22) is provided with side direction screw hole (23), the upper surface of roof (18) is provided with second sealed bolt hole (19).
2. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the upper end of the air inlet pipe (25) extends to the upper end of the vertical fixed metal sleeve (1), and one end of the air outlet pipe (10) away from the air pump (24) extends to the inside of the anti-corrosion elastic air bag (7).
3. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the electric water pump is characterized in that the input end of the electric water pump (8) is fixedly connected with a water inlet pipe (12), the output end of the electric water pump (8) is fixedly connected with a one-way valve (9), and the diameter of the electric water pump (8) is smaller than the inner diameter of the fixed cylinder (6).
4. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the lower ends of the first bolts (11) sequentially extend into the hard shell (14) and the fixed cylinder (6), and the number of the first bolts (11) is three.
5. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the circulating hole (17) is arranged on the upper surface and the lower surface of the hard shell (14), the horizontal circular flow baffle (16) is in sliding connection with the inner surface of the hard shell (14), the lower surface of the shielding device (5) is in contact with the fixed cylinder (6), the upper surface of the shielding device (5) is in contact with the first flange (4), and an elastic layer is arranged on the outer surface of the horizontal circular flow baffle (16).
6. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the circular metal sealing plate (22) is made of stainless iron, and the lateral threaded holes (23) are distributed in a plurality of annular arrays.
7. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the fixed metal sleeve is characterized in that the first metal fixing ring (2) is fixedly connected to the upper surface of the vertical fixed metal sleeve (1), first sealing type bolt holes (3) are formed in the upper surface of the first metal fixing ring (2), and the number of the first sealing type bolt holes (3) is multiple and distributed annularly.
8. The non-pressure relief valve-changing device for high-pressure water well in oil field according to claim 1, wherein: the electric water pump (8) is internally provided with a power supply, and the first electric telescopic rod (15), the second electric telescopic rod (20) and the air pump (24) are electrically connected with an external power supply.
CN202311233826.8A 2023-09-23 2023-09-23 Oil field high pressure well does not release pressure and trades valve gear Active CN117189007B (en)

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CN202311233826.8A CN117189007B (en) 2023-09-23 2023-09-23 Oil field high pressure well does not release pressure and trades valve gear

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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN104929551A (en) * 2015-06-15 2015-09-23 冯国庆 Oil field high-pressure well pressure-relief-free valve replacement device and valve replacement method
CN111088956A (en) * 2019-12-04 2020-05-01 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 Magnetorheological fluid-based temporary plugging valve changing device and method for oil-gas wellhead

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