CN220504990U - Petroleum underground plugging device - Google Patents
Petroleum underground plugging device Download PDFInfo
- Publication number
- CN220504990U CN220504990U CN202322271516.7U CN202322271516U CN220504990U CN 220504990 U CN220504990 U CN 220504990U CN 202322271516 U CN202322271516 U CN 202322271516U CN 220504990 U CN220504990 U CN 220504990U
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- CN
- China
- Prior art keywords
- fixedly connected
- gas
- gas transmission
- inner cavity
- well body
- Prior art date
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- 239000003208 petroleum Substances 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 230000001502 supplementing effect Effects 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims description 31
- 239000003129 oil well Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 29
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Pipe Accessories (AREA)
Abstract
The utility model relates to the technical field of petroleum wells, in particular to an underground petroleum plugging device, which comprises a well body, wherein an air bag is arranged in an inner cavity of the well body, a top cover is fixedly connected with the top of the air bag, a base is fixedly connected with the bottom of the air bag, a gas transmission device is fixedly connected with the top of the top cover, a pressure bin is fixedly connected with the top of the gas transmission device, a plunger is movably sleeved in the inner cavity of the pressure bin, a push rod is fixedly connected with the top of the plunger, a cylinder is fixedly connected with the top of the push rod, the gas transmission device comprises a gas transmission pipe, a supplementing device is fixedly connected with one side of the top of the gas transmission pipe, two gas injection holes with two numbers are formed in two sides of the gas transmission pipe, a bottom plate is fixedly connected with the bottom of the inner cavity of the gas transmission pipe, and a second spring is fixedly connected with the top of the bottom plate.
Description
Technical Field
The utility model relates to the technical field of petroleum wells, in particular to an underground petroleum plugging device.
Background
Oil and natural gas are buried in oil and gas reservoirs ranging from tens of meters to thousands of meters underground, an oil and gas channel is required to be established between the ground and the underground oil and gas reservoirs, the channel is a well, pipeline breakage easily occurs in the process of setting up a petroleum well, and an underground petroleum plugging device is required to plug the underground petroleum well so as to replace the broken pipeline.
However, in the use of the existing underground plugging device, the diameter of the plugging device is fixed, the width of the inner wall of the oil well is not always consistent when the well is drilled due to the characteristics of the stratum, and the inner diameter of the oil well is slightly different, so that when the plugging device enters the oil well, the plugging device is difficult to descend, gaps are always reserved at the joint of the plugging device and the inner wall of the oil well due to the fact that friction is generated between the plugging device and the inner wall of the oil well, and the situation that the plugging is incomplete and leakage occurs is caused.
Disclosure of Invention
The utility model aims to provide an underground petroleum plugging device for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a petroleum underground plugging device, includes the well body, the inner chamber of the well body is equipped with the gasbag, the top fixedly connected with top cap of gasbag, the bottom fixedly connected with base of gasbag, the top fixedly connected with gas transmission device of top cap, the top fixedly connected with pressure storehouse of gas transmission device, the inner chamber activity in pressure storehouse has cup jointed the plunger, the top fixedly connected with push rod of plunger, the top fixedly connected with cylinder of push rod, gas transmission device is including the gas-supply pipe, top one side fixedly connected with complemental device of gas-supply pipe, the gas injection hole that is two in quantity has been seted up to the both sides of gas-supply pipe, the inner chamber bottom fixedly connected with bottom plate of gas-supply pipe, the top fixedly connected with No. two springs of bottom plate, the top fixedly connected with blocking ball of No. two springs.
Preferably, the supplementary device comprises a supplementary air pipe, one end of the inner cavity of the supplementary air pipe is fixedly connected with a fixing sleeve, one side of the fixing sleeve is fixedly connected with a third spring, one end of the third spring is fixedly connected with a second blocking ball, an air suction hole is respectively formed in the supplementary air pipe twice, and a circulation hole penetrating through the second blocking ball is formed in one end of the second blocking ball.
Preferably, the top of the air bag is provided with a connecting hole, the air pipe penetrates through the top cover, and the air injection hole is positioned in the inner cavity of the connecting hole.
Preferably, the mounting groove has been seted up to the inner wall of the well body, the inner wall both sides of mounting groove are fixedly connected with respectively and are a spring of three in quantity, the one end fixedly connected with fixed plate of a spring.
Preferably, the top cover inner cavity is fixedly connected with a sealing ring, and the inner wall of the sealing ring is in transition fit with the outer side of the gas transmission device.
Preferably, the diameter of the first blocking ball is larger than the aperture of the gas injection hole, and the diameter of the second blocking ball is larger than the aperture of the gas suction hole.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the plunger is pushed by the air cylinder to move downwards along the inner cavity of the pressure bin, so that air is filled into the air bag to expand the air bag, and the air bag fills the inner cavity of the well body, so that the inner cavity of the well body is blocked;
2. according to the utility model, the plunger is pulled by the air cylinder to move upwards along the inner cavity of the pressure bin, so that air is sucked into the inner cavity of the pressure bin through the supplementing device, and the inner cavity of the pressure bin is supplemented with air, so that the inner cavity of the pressure bin can be supplemented with air continuously, more air can be conveniently poured into the inner cavity of the air bag, and the air bag is inflated until the inner cavity of the well body can be fully filled.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an exploded view of the overall structure of the present utility model;
FIG. 3 is a schematic view of the overall structure of the airbag of FIG. 2 according to the present utility model;
FIG. 4 is a schematic view of the overall structure of the gas delivery device of FIG. 3 according to the present utility model;
FIG. 5 is a schematic view showing the overall structure of the supplementary device of FIG. 4 according to the present utility model
In the figure: 1. a well body; 2. an air bag; 3. a gas delivery device; 4. a pressure bin; 5. a plunger; 6. a push rod; 7. a cylinder; 8. a replenishing device; 11. a mounting groove; 12. a first spring; 13. a fixing plate; 21. a top cover; 22. a base; 23. a connection hole; 24. a seal ring; 31. a gas pipe; 32. an air injection hole; 33. a bottom plate; 34. a second spring; 35. a first blocking ball; 81. an air supplementing pipe; 82. a fixed sleeve; 83. a third spring; 84. a blocking ball number two; 85. an air suction hole; 841. and a flow hole.
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings.
Referring to fig. 1-4, the present utility model provides a technical solution:
the utility model provides a petroleum plugging device in pit, the inner chamber of well body 1 is equipped with gasbag 2, the top fixedly connected with top cap 21 of gasbag 2, the bottom fixedly connected with base 22 of gasbag 2, the top fixedly connected with gas transmission device 3 of top cap 21, the top fixedly connected with pressure storehouse 4 of gas transmission device 3, the inner chamber activity in pressure storehouse 4 has cup jointed plunger 5, the top fixedly connected with push rod 6 of plunger 5, the top fixedly connected with cylinder 7 of push rod 6, gas transmission device 3 is including gas-supply pipe 31, top one side fixedly connected with make-up device 8 of gas-up pipe 31, gas injection hole 32 that the quantity is two is seted up to the both sides of gas-supply pipe 31, the inner chamber bottom fixedly connected with bottom plate 33 of gas-supply pipe 31, the top fixedly connected with No. two springs 34 of bottom plate 33, the top fixedly connected with of No. one of No. two springs 34 blocks ball 35.
In this embodiment, referring to fig. 5, the supplementing device 8 includes a supplementing tube 81, one end of an inner cavity of the supplementing tube 81 is fixedly connected with a fixing sleeve 82, one side of the fixing sleeve 82 is fixedly connected with a third spring 83, one end of the third spring 83 is fixedly connected with a second blocking ball 84, two air suction holes 85 are respectively formed in the supplementing tube 81, and a flow hole 841 penetrating through the second blocking ball 84 is formed in one end of the second blocking ball 84.
In this embodiment, referring to fig. 3, a connection hole 23 is formed at the top of the air bag 2, the air pipe 31 penetrates through the top cover 21, and the air injection hole 32 is located in the inner cavity of the connection hole 23, so that when the air pipe 31 conveys air, the air can enter the inner cavity of the air bag 2 through the air injection hole 32 to expand the air bag 2.
In this embodiment, referring to fig. 2, an installation groove 11 is formed in the inner wall of the well body 1, a number one spring 12 with a number three is fixedly connected to two sides of the inner wall of the installation groove 11, one end of the number one spring 12 is fixedly connected with a fixing plate 13, which is beneficial to extruding the fixing plate 13 to move backward when the air bag 2 enters the inner wall of the fixing plate 13, and extruding the number one spring 12 to deform when the fixing plate 13 moves backward, so that the fixing plate 13 is tightly attached to the air bag 2 by the reaction force of the number one spring 12, and the air bag 2 is fixed.
In this embodiment, referring to fig. 3, the inner cavity of the top cover 21 is fixedly connected with a sealing ring 24, and the inner wall of the sealing ring 24 is in transition fit with the outer side of the gas transmission device 3, so that leakage of gas in the air bag 2 through a gap at the joint of the top cover 21 and the gas transmission device 3 is prevented, and therefore the volume of the air bag 2 is reduced, and the blocking effect is deteriorated.
In this embodiment, referring to fig. 4-5, the diameter of the first blocking ball 35 is larger than the aperture of the air injection hole 32, and the diameter of the second blocking ball 84 is larger than the aperture of the air suction hole 85, so that when the inner cavity of the pressure bin 4 is positive pressure, the second blocking ball 84 blocks the air suction hole 85 to enable air to be filled into the inner cavity of the air bag 2 only through the air delivery device 3, and when the inner cavity of the pressure bin 4 is negative pressure, the first blocking ball 35 blocks the air injection hole 32 to enable only the supplementing device 8 to generate suction to suck external air to supplement the inner cavity of the pressure bin 4 under the negative pressure effect.
The working principle of the utility model is as follows:
in the method, a cylinder 7 is arranged, a push rod 6 is downwards moved by power supplied by the cylinder 7, a plunger 5 is downwards moved along the inner cavity of a pressure bin 4 by the downwards movement of the push rod 6, the inner cavity space of the pressure bin 4 is reduced after the plunger 5 downwards moves, the pressure is increased, gas enters a gas pipe 31 after the inner cavity of the pressure bin 4 is increased, a first blocking ball 35 downwards moves under the action of the pressure and presses a second spring 34 to deform, the first blocking ball 35 leaves a gas injection hole 32 after downwards moving, so that gas entering the gas pipe 31 enters the inner cavity of an air bag 2 through the gas injection hole 32, the air bag 2 gradually expands under the tension of the gas after continuously entering the gas in the inner cavity of the air bag 2, the volume of the air bag 2 is increased, the inner cavity of a well body 1 can be continuously filled after the volume of the air bag 2 is increased, the inner cavity of the well body 1 is blocked, the second blocking ball 35 is restored after the gas is discharged from the inner cavity of the pressure bin 4, the second blocking ball is restored to the original state, and the first blocking ball 35 is prevented from leaking to the original state, and the first blocking ball is restored to the original state, and the first blocking ball is prevented from leaking;
in the second step, in the utility model, after the air in the inner cavity of the pressure bin 4 is discharged, the push rod 6 is moved upwards by the power supplied by the air cylinder 7, so that the plunger 5 moves upwards along the inner cavity of the pressure bin 4, the inner cavity space of the pressure bin 4 returns to the original size, negative pressure is generated, the second blocking ball 84 moves backwards under the action of the negative pressure, the third spring 83 is extruded to deform when the second blocking ball 84 moves backwards, the second blocking ball 84 moves backwards to leave the air suction hole 85, suction force is generated at the air suction hole 85 due to the negative pressure generated in the inner cavity of the pressure bin 4, the air is sucked into the inner cavity of the air supplementing pipe 81 continuously, and the air is sucked into the inner cavity of the pressure bin 4 through the air supplementing pipe 81, so that the air is supplemented to the inner cavity of the pressure bin 4.
Although embodiments of the present utility model 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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An oil well plugging device comprises a well body (1), and is characterized in that: the utility model discloses a well body, including well body (1), the inner chamber of well body (1) is equipped with gasbag (2), the top fixedly connected with top cap (21) of gasbag (2), the bottom fixedly connected with base (22) of gasbag (2), the top fixedly connected with gas transmission device (3) of top cap (21), the top fixedly connected with pressure storehouse (4) of gas transmission device (3), plunger (5) have been cup jointed in the inner chamber activity of pressure storehouse (4), the top fixedly connected with push rod (6) of plunger (5), the top fixedly connected with cylinder (7) of push rod (6), gas transmission device (3) are including gas transmission pipe (31), gas injection hole (32) that the quantity is two are seted up to the top one side of gas transmission pipe (31), the inner chamber bottom fixedly connected with bottom plate (33) of gas transmission pipe (31), the top fixedly connected with No. two springs (34) of bottom plate (33), no. two top fixedly connected with stop ball (35) of No. two springs (34).
2. The downhole petroleum plugging device of claim 1, wherein: the air supplementing device is characterized in that the air supplementing device (8) comprises an air supplementing pipe (81), one end of an inner cavity of the air supplementing pipe (81) is fixedly connected with a fixing sleeve (82), one side of the fixing sleeve (82) is fixedly connected with a third spring (83), one end of the third spring (83) is fixedly connected with a second blocking ball (84), an air suction hole (85) is respectively formed in the air supplementing pipe (81) twice, and one end of the second blocking ball (84) is provided with a circulation hole (841) penetrating through the second blocking ball (84).
3. The downhole petroleum plugging device of claim 1, wherein: the top of gasbag (2) has seted up connecting hole (23), gas-supply pipe (31) run through top cap (21), gas injection hole (32) are located in the inner chamber of connecting hole (23).
4. The downhole petroleum plugging device of claim 1, wherein: the well body (1) is characterized in that an installation groove (11) is formed in the inner wall of the well body (1), a number three springs (12) are fixedly connected to two sides of the inner wall of the installation groove (11) respectively, and a fixing plate (13) is fixedly connected to one end of each number one spring (12).
5. The downhole petroleum plugging device of claim 2, wherein: the inner cavity of the top cover (21) is fixedly connected with a sealing ring (24), and the inner wall of the sealing ring (24) is in transition fit with the outer side of the gas transmission device (3).
6. The downhole petroleum plugging device of claim 2, wherein: the diameter of the first blocking ball (35) is larger than the aperture of the gas injection hole (32), and the diameter of the second blocking ball (84) is larger than the aperture of the gas suction hole (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322271516.7U CN220504990U (en) | 2023-08-23 | 2023-08-23 | Petroleum underground plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322271516.7U CN220504990U (en) | 2023-08-23 | 2023-08-23 | Petroleum underground plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220504990U true CN220504990U (en) | 2024-02-20 |
Family
ID=89878314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322271516.7U Active CN220504990U (en) | 2023-08-23 | 2023-08-23 | Petroleum underground plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220504990U (en) |
-
2023
- 2023-08-23 CN CN202322271516.7U patent/CN220504990U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |