CN113982511A - Concentric continuous pipe sand suction device - Google Patents
Concentric continuous pipe sand suction device Download PDFInfo
- Publication number
- CN113982511A CN113982511A CN202111299267.1A CN202111299267A CN113982511A CN 113982511 A CN113982511 A CN 113982511A CN 202111299267 A CN202111299267 A CN 202111299267A CN 113982511 A CN113982511 A CN 113982511A
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- China
- Prior art keywords
- continuous
- sand
- pipe
- suction device
- well
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004576 sand Substances 0.000 title claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000003129 oil well Substances 0.000 claims abstract description 9
- 238000009792 diffusion process Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 4
- 241001330002 Bambuseae Species 0.000 abstract description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 4
- 239000011425 bamboo Substances 0.000 abstract description 4
- 238000005406 washing Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention relates to a concentric continuous pipe sand suction device, which comprises: a self-sealing blowout preventer; the inside of self-sealing device be equipped with the well plugging device rubber core the inside of well plugging device rubber core insert and be equipped with the inside continuous outer tube that is located the oil well the inside of continuous outer tube be equipped with continuous inner tube the bottom of continuous outer tube be connected with sand ware is inhaled to continuous inner tube connected's negative pressure, sand ware is inhaled to negative pressure include urceolus, diffusion tube and lower clutch the top port internal fixation of lower clutch have with the bridge type section of thick bamboo that the diffusion tube is connected the top port internal fixation of bridge type section of thick bamboo have the lifting nozzle. The concentric continuous pipe sand suction device is reasonable in structural design, continuous high-pressure liquid is injected into a cavity between the continuous inner pipe and the continuous outer pipe, the liquid is upwards sprayed through the lifting nozzle, low pressure is formed at the bottom of the well, settled sand at the bottom of the well is finally sucked and lifted to the ground, and the concentric continuous pipe sand suction device is simple, convenient and easy to operate and high in speed.
Description
Technical Field
The invention relates to a concentric continuous pipe sand suction device.
Background
In oilfield production, sand production is an inevitable problem. At present, the oil well sand washing process mainly comprises conventional oil pipe sand washing, concentric pipe sand washing, coiled tubing sand washing and the like. For a deep well with lower bottom pressure, circulation cannot be established between conventional oil pipe sand washing and continuous oil pipe sand washing, and sand washing liquid is leaked; the concentric tube sand washing needs to be carried out by a single tube, so that the on-site operation time is long, the labor intensity is high, the operation cost is high, and the large-scale popularization cannot be realized. Therefore, a concentric continuous pipe negative pressure sand suction system is urgently needed.
Disclosure of Invention
In order to solve the technical problem, the invention provides a concentric continuous pipe sand suction device, which utilizes a concentric continuous pipe to be connected with a negative pressure sand suction device, and utilizes high-speed flow to generate low pressure to suck and lift the settled sand at the bottom of a well to the ground.
The concentric continuous pipe sand suction device of the invention comprises:
the self-sealing blowout preventer is fixed at the top end of the oil well through a bolt;
the method is characterized in that: the inside of self-sealing well ware be equipped with well sealing device and glue the core the inside of well sealing device glue the core insert and be equipped with the continuous outer tube that is located the oil well inside the inside of continuous outer tube be equipped with continuous inner tube the bottom of continuous outer tube be connected with continuous inner tube connected's negative pressure inhale sand ware, the negative pressure inhale sand ware include urceolus, diffuser pipe and lower clutch, the urceolus with continuous outer tube fixed connection, the diffuser pipe set up the inside of urceolus, the bottom of continuous inner tube peg graft and be in the top of diffuser pipe in, the lower clutch fix the bottom of urceolus in the top mouth of lower clutch be fixed with the bridge type section of thick bamboo that the diffuser pipe is connected the top mouth internal fixation of bridge type section of thick bamboo have the lifting nozzle.
In the above structure, the outer cylinder and the continuous outer tube are connected by screw thread.
In the structure, the outer wall of the bottom port of the continuous inner pipe is provided with a plurality of O-shaped rings.
In the structure, the outer wall of the lower joint is provided with a sand stirring spray hole and a sand sucking hole.
In the structure, the outer wall of the bridge type cylinder is provided with a liquid inlet communicated with the lifting nozzle, and a bridge type liquid suction hole which is communicated up and down is arranged between the upper end surface and the lower end surface of the bridge type cylinder.
Compared with the prior art, the invention has the beneficial effects that: the concentric continuous pipe sand suction device is reasonable in structural design, continuous high-pressure liquid is injected into a cavity between the continuous inner pipe and the continuous outer pipe, the liquid is upwards sprayed through the lifting nozzle, low pressure is formed at the bottom of the well, settled sand at the bottom of the well is finally sucked and lifted to the ground, and the concentric continuous pipe sand suction device is simple, convenient and easy to operate and high in speed.
Drawings
FIG. 1 is a schematic structural diagram of a concentric continuous pipe sand suction device according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a negative pressure sand sucker in a concentric continuous pipe sand sucker according to an embodiment of the invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1.
In the figure:
1. a self-sealing blowout preventer; 2. an oil well; 3. a blowout preventer rubber core; 4. a continuous outer tube; 5. a continuous inner tube; 6. a negative pressure sand sucker; 7. an outer cylinder; 8. a diffuser tube; 9. a lower joint; 10. a bridge drum; 11. lifting the nozzle; 12. an O-shaped ring; 13. stirring sand and spraying holes; 14. a sand suction hole; 15. a liquid inlet; 16. bridge type liquid suction holes.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 3, a concentric continuous pipe sand suction device includes:
the self-sealing blowout preventer 1 is fixed at the top end of the oil well 2 through a bolt;
the method is characterized in that: a blowout preventer rubber core 3 is arranged inside the self-sealing blowout preventer 1, a continuous outer pipe 4 positioned inside the oil well 2 is inserted inside the blowout preventer rubber core 3, a continuous inner pipe 5 is arranged in the continuous outer pipe 4, the bottom end of the continuous outer pipe 4 is connected with a negative pressure sand sucker 6 connected with the continuous inner pipe 5, the negative pressure sand sucker 6 comprises an outer cylinder 7, a diffusion pipe 8 and a lower joint 9, the outer cylinder 7 is fixedly connected with the continuous outer pipe 4, the diffusion pipe 8 is arranged in the outer cylinder 7, the bottom end of the continuous inner pipe 5 is inserted in the top port of the diffusion pipe 8, the lower joint 9 is fixed in the bottom port of the outer cylinder 7, a bridge type cylinder 10 connected with the diffusion pipe 8 is fixed in the top port of the lower joint 9, and a lifting nozzle 11 is fixed in the top port of the bridge type cylinder 10.
In the structure, the outer cylinder 7 is connected with the continuous outer pipe 4 through threads.
In the structure, the outer wall of the bottom port of the continuous inner pipe 5 is provided with a plurality of O-shaped rings 12.
In the structure, the outer wall of the lower joint 9 is provided with a sand stirring spray hole 13 and a sand sucking hole 14.
In the structure, a liquid inlet 15 communicated with the lifting nozzle 11 is arranged on the outer wall of the bridge type cylinder 10, and a bridge type liquid suction hole 16 which is communicated up and down is arranged between the upper end surface and the lower end surface of the bridge type cylinder 10.
When the concentric continuous pipe sand suction device works, power fluid enters the negative pressure sand suction device through an annular space between the continuous outer pipe and the continuous inner pipe, then enters the liquid inlet and is upwards sprayed through the lifting nozzle to form a low-pressure area, and sand and water stirred by the sand stirring spraying hole are sucked into the diffusion pipe through the sand suction hole and the bridge type liquid suction hole and finally lifted to the ground. The concentric continuous oil pipe sand removal technology is suitable for shallow thick oil horizontal well operation and is used for sand production, sand washing, sand pumping and sand removal operation of the horizontal well. Not only saves the operation cost, but also can technically realize the operation effect which can not be achieved by the conventional horizontal well flushing and sand removing pipe column technology. Relatively speaking, the concentric continuous pipe negative pressure sand sucker process has the advantages of being simple and easy to operate, high in speed and the like.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A concentric coiled tubing sand suction device, comprising:
the self-sealing blowout preventer (1) is fixed at the top end of the oil well (2) through a bolt;
the method is characterized in that: the inside of self-sealing well ware (1) be equipped with well ware packing element (3) the inside of well ware packing element (3) insert and be equipped with continuous outer tube (4) that are located oil well (2) inside the inside of continuous outer tube (4) be equipped with continuous inner tube (5) the bottom of continuous outer tube (4) be connected with negative pressure sand sucker (6) that continuous inner tube (5) are connected, negative pressure sand sucker (6) include urceolus (7), diffuser (8) and lower clutch (9), urceolus (7) with continuous outer tube (4) fixed connection, diffuser (8) set up the inside of urceolus (7), the bottom of continuous inner tube (5) peg graft and be in the top of diffuser (8) in the mouth, lower clutch (9) fix the bottom of urceolus (7) in the mouth, a bridge type barrel (10) connected with the diffusion pipe (8) is fixed in the top port of the lower joint (9), and a lifting nozzle (11) is fixed in the top port of the bridge type barrel (10).
2. The concentric coiled tubing sand suction device according to claim 1, wherein: the outer cylinder (7) is connected with the continuous outer pipe (4) through threads.
3. The concentric coiled tubing sand suction device according to claim 1, wherein: and a plurality of O-shaped rings (12) are arranged on the outer wall of the bottom port of the continuous inner pipe (5).
4. The concentric coiled tubing sand suction device according to claim 1, wherein: and a sand stirring spray hole (13) and a sand sucking hole (14) are formed in the outer wall of the lower connector (9).
5. The concentric coiled tubing sand suction device according to claim 1, wherein: a liquid inlet (15) communicated with the lifting nozzle (11) is arranged on the outer wall of the bridge type cylinder (10), and a bridge type liquid suction hole (16) which is communicated up and down is arranged between the upper end surface and the lower end surface of the bridge type cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299267.1A CN113982511A (en) | 2021-11-04 | 2021-11-04 | Concentric continuous pipe sand suction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111299267.1A CN113982511A (en) | 2021-11-04 | 2021-11-04 | Concentric continuous pipe sand suction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113982511A true CN113982511A (en) | 2022-01-28 |
Family
ID=79746380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111299267.1A Pending CN113982511A (en) | 2021-11-04 | 2021-11-04 | Concentric continuous pipe sand suction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113982511A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100276143A1 (en) * | 2007-07-17 | 2010-11-04 | Reelwell As | Method and device for cleaning and sealing a well |
| CN209083249U (en) * | 2018-09-06 | 2019-07-09 | 中石化石油工程技术服务有限公司 | A kind of split type oil pipe self-sealing blowout preventer |
| CN113279710A (en) * | 2021-06-09 | 2021-08-20 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
-
2021
- 2021-11-04 CN CN202111299267.1A patent/CN113982511A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100276143A1 (en) * | 2007-07-17 | 2010-11-04 | Reelwell As | Method and device for cleaning and sealing a well |
| CN209083249U (en) * | 2018-09-06 | 2019-07-09 | 中石化石油工程技术服务有限公司 | A kind of split type oil pipe self-sealing blowout preventer |
| CN113279710A (en) * | 2021-06-09 | 2021-08-20 | 克拉玛依市恩能胜石油科技有限公司 | Deep well sand removal system |
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