CN216617489U - Deep well stress self-adaptive compensation fracturing process pipe column - Google Patents
Deep well stress self-adaptive compensation fracturing process pipe column Download PDFInfo
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- CN216617489U CN216617489U CN202220260422.2U CN202220260422U CN216617489U CN 216617489 U CN216617489 U CN 216617489U CN 202220260422 U CN202220260422 U CN 202220260422U CN 216617489 U CN216617489 U CN 216617489U
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Abstract
The utility model relates to the technical field of fracturing process pipe columns, and discloses a deep well stress self-adaptive compensation fracturing process pipe column which comprises a protective cylinder, an upper fixed cylinder and a lower fixed cylinder, wherein the outer surface of the upper fixed cylinder and the outer surface of the lower fixed cylinder are fixedly connected with the inner wall of the protective cylinder; according to the utility model, the upper fixing barrel is matched with the lower fixing barrel, the first connecting ring, the first limiting ring, the connecting spring, the second connecting ring, the second limiting ring and the pressure reducing spring, when the pipe column is subjected to stress deformation caused by external influence, the extension and the shortening of the pipe column caused by the stress deformation can be compensated by using the connecting spring and the pressure reducing spring, so that the pipe column has good self-adaptability, and the problems that the working state and the normal operation of other equipment are influenced due to the fact that the pipe column cannot adapt to the stress change are solved.
Description
Technical Field
The utility model relates to the technical field of fracturing process pipe columns, in particular to a deep well stress self-adaptive compensation fracturing process pipe column.
Background
The fracturing process pipe column is the foundation for smoothly implementing fracturing construction, and with the progress of the theory and technical level of the fracturing process, the fracturing construction can be pre-injected or injected with low-temperature compressed gas such as carbon dioxide, nitrogen and the like, so that the stratum energy is increased, and the fracturing effect is improved.
Because the temperature of low temperature compressed gas such as carbon dioxide, nitrogen gas and the like and the ground bottom can lead to the fracturing technology tubular column to expand or contract, the stress change of the expansion and contraction of the fracturing technology tubular column can seriously affect the working state of internal equipment of the fracturing technology tubular column, but the existing fracturing technology tubular column can not well process the stress change, so that the fracturing technology tubular column can not adapt to and compensate the change as required, and the working effect of internal facilities is reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a deep well stress self-adaptive compensation fracturing process pipe column which has the advantages of being capable of self-adapting to stress changes of the fracturing process pipe column under low-temperature and high-temperature conditions and ensuring normal operation of internal equipment.
In order to achieve the purpose, the utility model provides the following technical scheme: a deep well stress self-adaptive compensation fracturing process pipe column comprises a protective cylinder, an upper fixed cylinder and a lower fixed cylinder, the outer surface of the upper fixed cylinder and the outer surface of the lower fixed cylinder are both fixedly connected with the inner wall of the protective cylinder, a pipe column is arranged in the protective barrel, compression springs are arranged on the outer surface of the pipe column at equal intervals, one end of each group of the compression springs, which is far away from each other, is fixedly connected with the inner wall of the protective barrel, the inner part of the upper fixed cylinder is connected with a first connecting ring in a sliding way, the inner wall of the first connecting ring is fixedly connected with the outer surface of the pipe column, the inner wall of the upper fixed cylinder is provided with a first limiting ring, the upper surface of the first connecting ring and the bottom surface of the first connecting ring are respectively provided with connecting springs which are arranged at equal intervals, and the ends, far away from each other, of the two groups of connecting springs are respectively fixedly connected with the bottom surface of the first limiting ring and the inner bottom wall of the upper fixed cylinder;
the inner part of the lower fixing barrel is connected with a second connecting ring in a sliding mode, the inner wall of the second connecting ring is fixedly connected with the outer surface of the tubular column, a second limiting ring is installed on the inner wall of the lower fixing barrel, pressure reducing springs which are arranged equidistantly are installed on the upper surface of the second connecting ring and the bottom surface of the second connecting ring, and one ends, far away from each other, of the two groups of pressure reducing springs are fixedly connected with the upper surface of the second limiting ring and the inner top wall of the lower fixing barrel respectively.
Preferably, the outer surface of the upper fixing cylinder is provided with a fixing flange, and the upper surface of the fixing flange is provided with fixing through holes which are arranged at equal intervals.
Preferably, a first reinforcing ring is placed below the fixing flange, the bottom surface of the first reinforcing ring is fixedly connected with the upper surface of the protective cylinder, and the inner wall of the first reinforcing ring is fixedly connected with the outer surface of the upper fixed cylinder.
Preferably, the below of first reinforcement ring has placed the flexible post that the equidistance was arranged, every the equal joint of flexible post is in compression spring's inside, every group the one end of keeping away from each other of flexible post all with the inner wall fixed connection of a protection section of thick bamboo, every group the flexible end of flexible post all contacts with the surface of tubular column.
Preferably, the outer surface cover of tubular column is equipped with two sealing rings, two a side that the sealing ring kept away from each other is connected with the bottom surface of last fixed cylinder and the upper surface fixed connection of lower fixed cylinder respectively.
Preferably, a second reinforcing ring is mounted on the outer surface of the lower fixing cylinder, and the upper surface of the second reinforcing ring is fixedly connected with the bottom surface of the protective cylinder.
Preferably, the stabilizing frames which are arranged equidistantly are placed above the second reinforcing ring, and one side face, close to each other, of each stabilizing frame is fixedly connected with the outer surface of the lower fixing cylinder.
Preferably, the inner part of the upper fixed cylinder and the inner part of the lower fixed cylinder are respectively connected with an upper guide ring and a lower guide ring in a sliding manner, and the bottom surface of the upper guide ring and the upper surface of the lower guide ring are respectively fixedly connected with the top end of the tubular column and the bottom end of the tubular column.
Compared with the prior art, the utility model provides a deep well stress self-adaptive compensation fracturing process pipe column, which has the following beneficial effects:
1. this deep well stress self-adaptation compensation fracturing technology tubular column, through being provided with a fixed section of thick bamboo under the cooperation of a fixed section of thick bamboo, first connecting ring, first spacing ring, coupling spring, the second connecting ring, second spacing ring and pressure relief spring, when the tubular column receives external influence to take place stress deformation, the elasticity space that utilizes coupling spring and pressure relief spring to provide can compensate the tubular column because the extension that stress deformation takes place with shorten, thereby make the tubular column possess good self-adaptability, avoid the stress variation of unable adaptation tubular column, influence other equipment operating condition and normal operating's problem.
2. This deep well stress self-adaptation compensation fracturing technology tubular column through being provided with the elasticity space that protective barrel cooperation upper fixed cylinder, lower fixed cylinder and compression spring provided, can take place the inflation when the tubular column takes place, adapts to and compensates the inflation that the tubular column takes place to further prevent the stress deformation of tubular column from leading to the fact the influence to other equipment, reach better other equipment of protection, reduce the effect of the influence that tubular column stress deformation led to the fact other equipment.
Drawings
FIG. 1 is a schematic perspective view of a protective cylinder according to the present invention;
FIG. 2 is a schematic sectional, perspective structural view of the shield cylinder of the present invention;
FIG. 3 is a perspective structural view of the upper stationary barrel of the present invention;
fig. 4 is a three-dimensional structural schematic diagram of the lower fixed cylinder of the present invention.
In the figure: 1. a protective cylinder; 2. a lower fixed cylinder; 3. a first reinforcement ring; 4. an upper fixed cylinder; 5. a fixed flange; 6. a fixing through hole; 7. a telescopic column; 8. a compression spring; 9. a seal ring; 10. a second reinforcement ring; 11. a stabilizing frame; 12. a pipe string; 13. a first connecting ring; 14. a first limit ring; 15. an upper flow guide ring; 16. a connecting spring; 17. a second connection ring; 18. a second stop collar; 19. a relief spring; 20. and a lower guide ring.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a deep well stress adaptive compensation fracturing process string of the present invention is described in further detail below with reference to the accompanying drawings.
Referring to fig. 1-4, the present invention: the utility model provides a deep well stress self-adaptation compensation fracturing technology tubular column, including a protective cylinder 1, go up a solid fixed cylinder 4 and a solid fixed cylinder 2 down, the surface of going up solid fixed cylinder 4 and the surface of solid fixed cylinder 2 down all with the inner wall fixed connection of protective cylinder 1, the surface mounting of going up solid fixed cylinder 4 has mounting flange 5, mounting flange 5's upper surface is seted up the fixed through-hole 6 that the equidistance was arranged, utilize mounting flange 5 and fixed through-hole 6, can be connected the device with other equipment, thereby can make things convenient for people to install and use the device.
Go up the inside sliding connection of a fixed section of thick bamboo 4 and have first connecting ring 13, the inner wall of first connecting ring 13 is connected with the fixed surface of tubular column 12, the flexible post 7 that the equidistance was arranged is placed to the below of first reinforcing ring 3, every flexible post 7 equal joint is in compression spring 8's inside, the one end that every flexible post 7 of group kept away from each other all with the inner wall fixed connection of protection section of thick bamboo 1, the flexible end of every flexible post 7 of group all contacts with the surface of tubular column 12, flexible post 7 not only can increase compression spring 8's compressive capacity, also can restrict compression spring 8's position to a certain extent simultaneously, make it difficult emergence skew.
Go up the inner wall of solid fixed cylinder 4 and install first spacing ring 14, connecting spring 16 that the equidistance was arranged is all installed to the upper surface of first connecting ring 13 and the bottom surface of first connecting ring 13, the one end that two sets of connecting spring 16 kept away from each other respectively with the bottom surface of first spacing ring 14 and the interior diapire fixed connection of last solid fixed cylinder 4, the surface cover of tubular column 12 is equipped with two sealing rings 9, the side that two sealing rings 9 kept away from each other respectively with the bottom surface of last solid fixed cylinder 4 and the last fixed surface fixed connection of lower solid fixed cylinder 2, sealing ring 9 can increase the sealed effect between solid fixed cylinder 4 and the lower solid fixed cylinder 2, make it be difficult for taking place the seepage phenomenon in gap department, the sealed effect of the device has been increased.
The inside sliding connection of lower fixed cylinder 2 has second go-between 17, and the inner wall of second go-between 17 is connected with the external surface fixed of tubular column 12, and the surface mounting of lower fixed cylinder 2 has second strengthening ring 10, and the upper surface of second strengthening ring 10 and the bottom surface fixed connection of a protective barrel 1, second strengthening ring 10 can increase the joint strength of lower fixed cylinder 2 and protective barrel 1, has guaranteed the firm in connection degree of lower fixed cylinder 2 and protective barrel 1.
Go up the inside of solid fixed cylinder 4 and the inside of solid fixed cylinder 2 is sliding connection respectively has last guiding ring 15 and guiding ring 20 down, goes up the bottom surface of guiding ring 15 and the upper surface of guiding ring 20 down respectively with the top of tubular column 12 and the bottom fixed connection of tubular column 12, utilizes and goes up guiding ring 15 and guiding ring 20 down, can make better passing through tubular column 12 of liquid, has guaranteed the inside circulation of tubular column 12, makes it be difficult for taking place blocking phenomenon.
The working principle of the utility model is as follows: firstly, the device is connected with other equipment through a fixing flange 5 and a fixing through hole 6, when the device works in a deep well and is subjected to stress deformation due to the ground temperature of filled gas, the device can rapidly adapt to and compensate the extension or contraction of the pipe column 12 caused by the stress deformation by utilizing the elasticity provided by a connecting spring 16 and a pressure reducing spring 19 and matching with the sliding of a first connecting ring 13 and a second connecting ring 17 in an upper fixing cylinder 4 and a lower fixing cylinder 2, so that the influence of the stress deformation of the pipe column 12 on other equipment can be greatly reduced, the normal operation of other equipment is ensured, the fracturing process pipe has certain self-adapting capability, and the elastic space provided by a compression spring 8 is matched with a protective cylinder 1, the stress deformation of the pipe column 12 can be further absorbed, and the transverse expansion and contraction of the pipe column 12 can be compensated and adapted, therefore, the influence of the stress deformation of the pipe column 12 on other equipment is further reduced, and the stress self-adaption and compensation capability of the fracturing process pipe is further improved.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a deep well stress self-adaptation compensation fracturing technology tubular column, includes protective barrel (1), goes up solid fixed cylinder (4) and gu fixed cylinder (2) down, its characterized in that: go up the surface of a solid fixed cylinder (4) and the surface of a solid fixed cylinder (2) down all with the inner wall fixed connection of a solid protected cylinder (1), tubular column (12) have been placed to the inside of a solid protected cylinder (1), the surface mounting of tubular column (12) has compression spring (8) that the equidistance was arranged, every group compression spring (8) one end of keeping away from each other all with the inner wall fixed connection of a solid protected cylinder (1), the inside sliding connection who goes up solid fixed cylinder (4) has first connecting ring (13), the inner wall of first connecting ring (13) and the surface fixed connection of tubular column (12), go up the inner wall of solid fixed cylinder (4) and install first spacing ring (14), the connecting spring (16) that the equidistance was arranged are all installed to the upper surface of first connecting ring (13) and the bottom surface of first connecting ring (13), and two sets of connecting spring (16) one end of keeping away from each other respectively with the bottom surface of first spacing ring (14) and the inner bottom wall of last solid fixed cylinder (4) wall Fixedly connecting;
the inner sliding connection of the lower fixing barrel (2) is provided with a second connecting ring (17), the inner wall of the second connecting ring (17) is fixedly connected with the outer surface of the pipe column (12), the inner wall of the lower fixing barrel (2) is provided with a second limiting ring (18), the upper surface of the second connecting ring (17) and the bottom surface of the second connecting ring (17) are provided with pressure reducing springs (19) which are arranged equidistantly, and the two groups of pressure reducing springs (19) are respectively fixedly connected with the upper surface of the second limiting ring (18) and the inner top wall of the lower fixing barrel (2) at one end far away from each other.
2. The deep well stress adaptive compensation fracturing process string of claim 1, wherein: the outer surface of the upper fixing barrel (4) is provided with a fixing flange (5), and the upper surface of the fixing flange (5) is provided with fixing through holes (6) which are arranged at equal intervals.
3. The deep well stress adaptive compensation fracturing technology string of claim 2, wherein: a first reinforcing ring (3) is placed below the fixing flange (5), the bottom surface of the first reinforcing ring (3) is fixedly connected with the upper surface of the protective cylinder (1), and the inner wall of the first reinforcing ring (3) is fixedly connected with the outer surface of the upper fixed cylinder (4).
4. The deep well stress adaptive compensation fracturing technology string of claim 3, wherein: the utility model discloses a protection device, including a first reinforcing ring (3), first reinforcing ring, the below of first reinforcing ring (3) is placed flexible post (7) that the equidistance was arranged, every the equal joint of flexible post (7) is in the inside of compression spring (8), every group the one end of keeping away from each other of flexible post (7) all with the inner wall fixed connection of a protection section of thick bamboo (1), every group the flexible end of flexible post (7) all contacts with the surface of tubular column (12).
5. The deep well stress adaptive compensation fracturing process string of claim 1, wherein: the outer surface cover of tubular column (12) is equipped with two sealing rings (9), two a side that sealing ring (9) kept away from each other is connected with the bottom surface of last fixed cylinder (4) and the upper surface fixed of lower fixed cylinder (2) respectively.
6. The deep well stress adaptive compensation fracturing process string of claim 1, wherein: the outer surface of the lower fixing barrel (2) is provided with a second reinforcing ring (10), and the upper surface of the second reinforcing ring (10) is fixedly connected with the bottom surface of the protection barrel (1).
7. The deep well stress adaptive compensation fracturing technology string of claim 6, wherein: stabilizing frames (11) which are arranged equidistantly are arranged above the second reinforcing ring (10), and one side surface of each two groups of stabilizing frames (11) which are close to each other is fixedly connected with the outer surface of the lower fixing barrel (2).
8. The deep well stress adaptive compensation fracturing process string of claim 1, wherein: the inner part of the upper fixed barrel (4) and the inner part of the lower fixed barrel (2) are respectively connected with an upper guide ring (15) and a lower guide ring (20) in a sliding mode, and the bottom surface of the upper guide ring (15) and the upper surface of the lower guide ring (20) are respectively fixedly connected with the top end of the tubular column (12) and the bottom end of the tubular column (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220260422.2U CN216617489U (en) | 2022-02-09 | 2022-02-09 | Deep well stress self-adaptive compensation fracturing process pipe column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220260422.2U CN216617489U (en) | 2022-02-09 | 2022-02-09 | Deep well stress self-adaptive compensation fracturing process pipe column |
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| CN216617489U true CN216617489U (en) | 2022-05-27 |
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| CN202220260422.2U Active CN216617489U (en) | 2022-02-09 | 2022-02-09 | Deep well stress self-adaptive compensation fracturing process pipe column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950579A (en) * | 2023-09-15 | 2023-10-27 | 山东兆鑫石油工具有限公司 | Underground compensator with bidirectional compensation function |
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2022
- 2022-02-09 CN CN202220260422.2U patent/CN216617489U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950579A (en) * | 2023-09-15 | 2023-10-27 | 山东兆鑫石油工具有限公司 | Underground compensator with bidirectional compensation function |
| CN116950579B (en) * | 2023-09-15 | 2023-11-21 | 山东兆鑫石油工具有限公司 | Underground compensator with bidirectional compensation function |
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