CN219774098U - Temporary plugging agent feeding device for temporary plugging fracturing - Google Patents
Temporary plugging agent feeding device for temporary plugging fracturing Download PDFInfo
- Publication number
- CN219774098U CN219774098U CN202320826167.8U CN202320826167U CN219774098U CN 219774098 U CN219774098 U CN 219774098U CN 202320826167 U CN202320826167 U CN 202320826167U CN 219774098 U CN219774098 U CN 219774098U
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- Prior art keywords
- communication hole
- temporary plugging
- cylinder sleeve
- pressure nipple
- piston
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- 210000002445 nipple Anatomy 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 14
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 1
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A temporary plugging agent feeding device for temporary plugging fracturing relates to the technical field of temporary plugging fracturing. A front communication hole and a rear communication hole are formed between the high-pressure nipple and the cylinder sleeve, a piston is connected in the cylinder sleeve through a sealing ring, the piston is fixedly connected with a shaft of a linear motor, the linear motor is fixedly connected to the cylinder sleeve, a section of annular groove is formed in the outer circle of the piston, and a charging hopper is arranged on the upper portion of the cylinder sleeve. The beneficial effects of the utility model are as follows: the movable piston is positioned at the position where the charging hopper is communicated with the annular groove and is not communicated with the high-pressure nipple, a certain amount of temporary plugging agent is put into the charging hopper, then the movable piston is pushed to move to the position where the annular groove covers the front communication hole and the rear communication hole, the annular groove is communicated with the front communication hole and the rear communication hole, fracturing fluid flows in from the front communication hole, the temporary plugging agent is flushed out into the high-pressure nipple through the rear communication hole to enter a stratum, and thus the temporary plugging agent can be safely put into the well without shutdown.
Description
Technical Field
The utility model relates to the technical field of temporary plugging fracturing, in particular to a temporary plugging agent feeding device for temporary plugging fracturing.
Background
In the current temporary plugging turning fracturing construction, the temporary plugging balls, temporary plugging rope knot agents, particle temporary plugging agents and the like are basically added directly to a wellhead fracturing high-pressure pipeline, the addition mode can be realized after the well is shut down, and meanwhile, due to the fact that temporary plugging is more in single addition, the effect of construction is easily affected by plugging at the wellhead, the blasthole is plugged, and the construction overpressure is caused to be shut down.
Disclosure of Invention
The utility model provides a temporary plugging agent feeding device for temporary plugging fracturing, which aims to solve the problem that the temporary plugging agent can be added after a well is shut down.
The technical scheme provided by the utility model is as follows: the temporary plugging agent feeding device for temporary plugging fracturing comprises a cylinder sleeve and a high-pressure nipple, wherein the cylinder sleeve and the high-pressure nipple are of an integrated structure, the cylinder sleeve is positioned above the high-pressure nipple, clamp flanges are arranged on two sides of the high-pressure nipple and are used for connecting a wellhead fracturing pipeline, a front communication hole and a rear communication hole are formed between the high-pressure nipple and the cylinder sleeve, the front communication hole is positioned in the liquid inlet direction of the high-pressure nipple, the rear communication hole is positioned in the liquid outlet direction of the high-pressure nipple, the front communication hole is arranged in an oblique angle between the cylinder sleeve and the high-pressure nipple, the oblique angle of the front communication hole faces the liquid inlet direction of the high-pressure nipple, and the rear communication hole is arranged at right angles between the cylinder sleeve and the high-pressure nipple;
the cylinder sleeve is internally connected with a piston through a sealing ring, the piston is fixedly connected with a shaft of a linear motor, the linear motor is fixedly connected on the cylinder sleeve, a section of ring groove is processed on the outer circle of the piston, and a charging hopper is arranged on the upper part of the cylinder sleeve;
when the ring groove is positioned at the position of the charging hopper, sealing rings are respectively arranged at the two sides of the front communication hole and the two sides of the rear communication hole of the piston, and when the ring groove covers the positions of the front communication hole and the rear communication hole, the sealing rings are arranged at the two sides of the charging hopper of the piston.
And an exhaust valve is arranged at the lower part of the cylinder sleeve, and the exhaust valve corresponds to the position of the charging hopper.
The front communication hole protrudes an inclined plane in the high-pressure nipple, and the inclined plane faces the liquid inlet direction of the high-pressure nipple.
The temporary plugging agent chain is formed by wrapping and connecting a plurality of temporary plugging agents by a paper chain clamp, and the paper chain clamp is marked with a number for displaying the quantity of the temporary plugging agents.
The beneficial effects of the utility model are as follows: the movable piston is positioned at the position where the charging hopper is communicated with the annular groove and is not communicated with the high-pressure nipple, a certain amount of temporary plugging agent is put into the charging hopper, then the movable piston is pushed to move to the position where the annular groove covers the front communication hole and the rear communication hole, the annular groove is communicated with the front communication hole and the rear communication hole, fracturing fluid flows in from the front communication hole, and the temporary plugging agent flows out into the high-pressure nipple to enter a stratum through the communication hole, so that the temporary plugging agent can be safely put into the charging hopper under the condition of closing a well without shutdown.
Drawings
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a diagram of the operation of the present utility model;
FIG. 3 is a schematic diagram of the structure of the temporary plugging agent chain in the present utility model;
fig. 4 is a top view of fig. 3.
In the figure: the device comprises a cylinder sleeve 1, a high-pressure short joint 2, a front communication hole 3, a rear communication hole 4, a piston 5, a ring groove 6, a linear motor 7, an inclined plane 8, a feeding hopper 9, an evacuation valve 10, a temporary plugging agent 11 and a paper chain clamp 12.
Detailed Description
As shown in fig. 1-4, a temporary plugging agent feeding device for temporary plugging and fracturing comprises a cylinder sleeve 1 and a high-pressure nipple 2, wherein the cylinder sleeve 1 and the high-pressure nipple 2 are of an integrated structure, the cylinder sleeve 1 is positioned above the high-pressure nipple 2, clamp flanges are arranged on two sides of the high-pressure nipple 2 and are used for connecting wellhead fracturing pipelines, a front communication hole 3 and a rear communication hole 4 are arranged between the high-pressure nipple 2 and the cylinder sleeve 1, the front communication hole 3 is positioned in the liquid inlet direction of the high-pressure nipple 2, the rear communication hole 4 is positioned in the liquid outlet direction of the high-pressure nipple 2, the front communication hole 3 is arranged in an oblique angle between the cylinder sleeve 1 and the high-pressure nipple 2, the oblique angle of the front communication hole 3 faces the liquid inlet direction of the high-pressure nipple 2, and the rear communication hole 4 is arranged in a right angle between the cylinder sleeve 1 and the high-pressure nipple 2;
the cylinder sleeve 1 is internally connected with a piston 5 through a sealing ring, the piston 5 is fixedly connected with a shaft of a linear motor 7, the linear motor 7 is fixedly connected on the cylinder sleeve 1, a section of ring groove 6 is processed on the outer circle of the piston 5, and a charging hopper 9 is arranged on the upper part of the cylinder sleeve 1;
when the ring groove 6 is positioned at the position of the charging hopper 9, sealing rings are respectively arranged at the two sides of the front communication hole 3 and the two sides of the rear communication hole 4 of the piston 5, and when the ring groove 6 covers the positions of the front communication hole 3 and the rear communication hole 4, the sealing rings are arranged at the two sides of the charging hopper 9 of the piston 5.
An evacuation valve 10 is arranged at the lower part of the cylinder sleeve 1, the evacuation valve 10 corresponds to the position of the charging hopper 9, and before the temporary plugging agent 11 is added, the evacuation valve 10 is opened to evacuate the liquid in the ring groove 6, so that the added temporary plugging agent 11 is prevented from floating out.
The front communication hole 3 is internally protruded with an inclined plane 8 in the high-pressure nipple 2, the inclined plane 8 faces the liquid inlet direction of the high-pressure nipple 2, the effect of tangential flow is achieved, and more fracturing liquid entering the high-pressure nipple 2 flows into the front communication hole 3.
The temporary plugging agent chain is formed by wrapping and connecting a plurality of temporary plugging agents 11 by paper chain clamps 12, numbers showing the number of the temporary plugging agents 11 are marked on the paper chain clamps 12, and the number of the temporary plugging agents 11 which are put into each time can be determined by cutting the temporary plugging agent chain.
The movable piston 5 is positioned at the position where the charging hopper 9 is communicated with the annular groove 6 and is not communicated with the high-pressure short section 2, a certain number of temporary plugging agent chains are put into the charging hopper 9, then the movable piston 5 is pushed to move to the position where the annular groove 6 covers the front communication hole 3 and the rear communication hole 4, the annular groove 6 is communicated with the front communication hole 3 and the rear communication hole 4, fracturing fluid flows in from the front communication hole 3, the paper chain clamps 12 are dissolved, the temporary plugging agent 11 flows out into the high-pressure short section 2 through the rear communication hole 4 and enters a stratum, and the temporary plugging agent 11 can be safely put in under the condition of no shutdown and well closing in a reciprocating manner.
Claims (4)
1. The utility model provides a temporary plugging agent feeding device for temporary plugging fracturing, includes cylinder liner (1) and high pressure nipple joint (2), its characterized in that: the hydraulic fracturing device comprises a cylinder sleeve (1) and a high-pressure nipple (2) which are of an integrated structure, wherein the cylinder sleeve (1) is positioned above the high-pressure nipple (2), clamp flanges are arranged on two sides of the high-pressure nipple (2) and are used for connecting a wellhead fracturing pipeline, a front communication hole (3) and a rear communication hole (4) are formed between the high-pressure nipple (2) and the cylinder sleeve (1), the front communication hole (3) is positioned in the liquid inlet direction of the high-pressure nipple (2), the rear communication hole (4) is positioned in the liquid outlet direction of the high-pressure nipple (2), the front communication hole (3) is arranged in an oblique angle between the cylinder sleeve (1) and the high-pressure nipple (2), the oblique angle of the front communication hole (3) faces the liquid inlet direction of the high-pressure nipple (2), and the rear communication hole (4) is arranged in a right angle between the cylinder sleeve (1) and the high-pressure nipple (2);
the cylinder sleeve (1) is internally connected with the piston (5) through a sealing ring, the piston (5) is fixedly connected with a shaft of the linear motor (7), the linear motor (7) is fixedly connected on the cylinder sleeve (1), a section of ring groove (6) is processed on the outer circle of the piston (5), and a charging hopper (9) is arranged at the upper part of the cylinder sleeve (1);
when the annular groove (6) is positioned at the position of the charging hopper (9), sealing rings are respectively arranged at the two sides of the front communication hole (3) and the two sides of the rear communication hole (4) of the piston (5), and when the annular groove (6) covers the positions of the front communication hole (3) and the rear communication hole (4), the sealing rings are arranged at the two sides of the charging hopper (9) of the piston (5).
2. The temporary plugging agent feeding device for temporary plugging and fracturing according to claim 1, wherein: an exhaust valve (10) is arranged at the lower part of the cylinder sleeve (1), and the exhaust valve (10) corresponds to the position of the charging hopper (9).
3. The temporary plugging agent feeding device for temporary plugging and fracturing according to claim 1, wherein: the front communication hole (3) is internally protruded with an inclined plane (8) in the high-pressure nipple (2), and the inclined plane (8) faces to the liquid inlet direction of the high-pressure nipple (2).
4. The temporary plugging agent feeding device for temporary plugging and fracturing according to claim 1, wherein: the temporary plugging agent chain is formed by wrapping and connecting a plurality of temporary plugging agents (11) by paper chain clamps (12), and numbers for displaying the number of the temporary plugging agents (11) are marked on the paper chain clamps (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826167.8U CN219774098U (en) | 2023-04-14 | 2023-04-14 | Temporary plugging agent feeding device for temporary plugging fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320826167.8U CN219774098U (en) | 2023-04-14 | 2023-04-14 | Temporary plugging agent feeding device for temporary plugging fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774098U true CN219774098U (en) | 2023-09-29 |
Family
ID=88132715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320826167.8U Active CN219774098U (en) | 2023-04-14 | 2023-04-14 | Temporary plugging agent feeding device for temporary plugging fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774098U (en) |
-
2023
- 2023-04-14 CN CN202320826167.8U patent/CN219774098U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A temporary plugging agent feeding device for temporary plugging and fracturing Granted publication date: 20230929 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN JUNDE PETROLEUM ENGINEERING TECHNOLOGY CO.,LTD. Registration number: Y2024980021888 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |