CN202500543U - Hydraulic slide sleeve and pressure-bearing short connector device - Google Patents
Hydraulic slide sleeve and pressure-bearing short connector device Download PDFInfo
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- CN202500543U CN202500543U CN2012201005668U CN201220100566U CN202500543U CN 202500543 U CN202500543 U CN 202500543U CN 2012201005668 U CN2012201005668 U CN 2012201005668U CN 201220100566 U CN201220100566 U CN 201220100566U CN 202500543 U CN202500543 U CN 202500543U
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Abstract
The utility model relates to a hydraulic slide sleeve and pressure-bearing short connector device and belongs to the field of an underground working tool of an oil gas well. A hydraulic slide sleeve is formed by a connector sleeve, a bypass sleeve, a sphere, a spherical base, a shearing pin, a sealing ring, a central body drain plug, a piston, a spring and a central body; a pressure-bearing short connector is formed by an upper connector, a fastening screw, a slide sleeve outer sleeve, a piston, a fastening screw and a C-shaped ring; the upper connector and the slide sleeve outer sleeve are connected through a thread; the piston is connected with the slide sleeve outer sleeve through the shearing pin; and the C-shaped ring is clamped in a clamping groove in the piston. The hydraulic slide sleeve disclosed by the utility model is provided with a bypass structure and a flow channel can be opened by an upper-lower pressure difference generated by the piston and tripping operation is easy to realize; and a bypass hole can be closed by throwing the sphere. The pressure-bearing short connector has a simple structure and is convenient to use, can carry out the tripping operation work along with an oil pipe, and can realize the function by directly applying pressure on the ground; and the hydraulic slide sleeve and pressure-bearing short connector device disclosed by the utility model solves the problems the existing hydraulic slide sleeve and pressure-bearing short connector cannot be matched with a horizontal well multi-section cracking system and are not suitable for shale gas exploitation are solved.
Description
Technical field
The utility model relates to a kind of hydraulic pressure sliding sleeve and pressure-bearing short-circuit device, and particularly a kind of and supporting hydraulic pressure sliding sleeve and the pressure-bearing short-circuit device of horizontal well multistage frac system belongs to oil gas well underground work field of tool.
Background technology
The shale gas exploitation has the advantages that production life of well is long and the production cycle is long, and main basin of China and regional shale gas resource are about 15,000,000,000,000～30 tcms.The storage layer of shale gas generally be bottom outlet, the substance characteristics that permeates, the resistance ratios conventional gas of air-flow is big, all wells all will be implemented the reservoir fracturing technological transformation and could exploit out; And China does not also form mature technique so far---synchronous fracturing technique, these Technology Needs apply to the multistage fracturing technology tubing string with high withstand voltage properties of a cover system and realize.
Present domestic conventional hydraulic pressure sliding sleeve and pressure-bearing short circuit are the tests to routine, and well cementation, acidification technique design.Can't mate the exploitation of incompatibility shale gas with horizontal well multistage frac system.
Summary of the invention
The purpose of the utility model is: provide a kind of can be with in the oil pipe lower going-into-well, be lowered to after the predetermined level pitching and exert pressure and close the bypass flow channel on the pressure-bearing short circuit, the hydraulic pressure sliding sleeve then can directly utilize up and down pressure differential to open, and does not need pitching; And simple to operate, convenient practicality is applicable to horizontal well multistage fracturing technique, the hydraulic pressure sliding sleeve and the pressure-bearing short-circuit device of functions such as the runner of going into the well for horizontal well multistage fracturing technique pipe string provides, set, needing during pressure break, pressure-bearing, circulation.
The utility model is to realize above-mentioned purpose through following technical scheme:
A kind of hydraulic pressure sliding sleeve and pressure-bearing short-circuit device; It is made up of fitting sleeve, bypass cover, ball, ball seat, shear pin, joint ring, centerbody plug, piston, spring, centerbody, holding screw, top connection, sliding sleeve overcoat, C type ring; It is characterized in that: described hydraulic pressure sliding sleeve is made up of fitting sleeve, bypass cover, ball, ball seat, shear pin, joint ring, centerbody plug, piston, spring, centerbody and holding screw; Fitting sleeve overlaps through being threaded with bypass, and ball seat is connected with the bypass cover through shear pin, and joint ring is installed in the fitting sleeve; The centerbody plug overlaps through being threaded with bypass; Piston and spring are installed in the centerbody plug, and spring presses piston, and centerbody plug and centerbody are through being threaded; Shear pin is equipped with at the middle part of bypass cover, and the right-hand member of bypass cover and centerbody plug is equipped with holding screw; Described pressure-bearing short circuit is made up of top connection, holding screw, sliding sleeve overcoat, piston, shear pin and C type ring, and top connection and sliding sleeve overcoat are through being threaded, and piston is connected with the sliding sleeve overcoat through shear pin, and C type ring is stuck in the draw-in groove of piston.
The beneficial effect of the utility model is:
1, the hydraulic pressure shift sleeve structure of this hydraulic pressure sliding sleeve and pressure-bearing short-circuit device is compact, and is easy to use, and directly the ground pitching is exerted pressure and just can be realized its function; And be designed with by-pass structure, and to bore down easily, pitching can be closed by-pass prot, and piston relies on the elastic force of back-moving spring can ball be pushed away ball seat, lets the pressure-bearing short circuit bear very high pressure.The pressure-bearing short circuit provides in horizontal well multistage fracturing technology pipe string goes into the well and the bypass flow channel when throwing the setting ball ball; And can unidirectional pressure-bearing be that hydraulic pressure open hole packer in the horizontal well multistage fracturing technology pipe string provides and sets pressure; After hydraulic pressure slides over unlatching, for runner and the pressure break passage of throwing first pressure break ball is provided in the horizontal well multistage fracturing technology pipe string;
2, the pressure-bearing short circuit of this hydraulic pressure sliding sleeve and pressure-bearing short-circuit device is simple in structure, easy to use, can be effectively with together round trip of oil pipe, and directly exert pressure and just can realize its function in ground; Do not need pitching, open runner through the pressure reduction up and down that piston produces; On piston unique design the groove of a C type ring, piston can rollback not block runner;
3, pressure-bearing short circuit internal ball seat material uses special easy brill material, after accomplishing its function, can use drilling tool to bore, to increase latus rectum, for productivity gain provides major path.
Description of drawings
Fig. 1 is the structural representation of hydraulic pressure sliding sleeve;
Fig. 2 is the structural representation of hydraulic pressure sliding sleeve duty;
Fig. 3 is the structural representation of pressure-bearing short circuit;
Fig. 4 is the structural representation of pressure-bearing short circuit duty.
Among the figure: 1, fitting sleeve, 2, the bypass cover, 3, ball, 4, ball seat, 5, shear pin; 6, joint ring, 7, the centerbody plug, 8, piston, 9, spring; 10, centerbody, 11, holding screw, 12, top connection, 13, holding screw; 14, sliding sleeve overcoat, 15, piston, 16, shear pin, 17, C type ring.
The specific embodiment
This hydraulic pressure sliding sleeve and pressure-bearing short-circuit device are made up of fitting sleeve 1, bypass cover 2, ball 3, ball seat 4, shear pin 5,16, joint ring 6, centerbody plug 7, piston 8,15, spring 9, centerbody 10, holding screw 11,13, top connection 12, sliding sleeve overcoat 14, C type ring 17; Described hydraulic pressure sliding sleeve is made up of fitting sleeve 1, bypass cover 2, ball 3, ball seat 4, shear pin 5, joint ring 6, centerbody plug 7, piston 8, spring 9, centerbody 10 and holding screw 11; Fitting sleeve 1 overlaps 2 through being threaded with bypass; Ball seat 4 is connected with bypass cover 2 through shear pin 5; Joint ring 6 is installed in the fitting sleeve 1, and centerbody plug 7 overlaps 2 through being threaded with bypass, and piston 8 is installed in the centerbody plug 7 with spring 9; Spring 9 presses piston 8; Centerbody plug 7 and centerbody 10 are through being threaded, and shear pin 5 is equipped with at the middle part of bypass cover 2, and the right-hand member of bypass cover 2 and centerbody plug 7 is equipped with holding screw 11.Described pressure-bearing short circuit is made up of top connection 12, holding screw 13, sliding sleeve overcoat 14, piston 15, shear pin 16 and C type ring 17; Top connection 12 and sliding sleeve overcoat 14 are through being threaded, and piston 15 is connected with sliding sleeve overcoat 14 through shear pin 16, and C type ring 17 is stuck in the draw-in groove of piston 15; C type ring 17 has elasticity; After the shear force of sliding sleeve was opened in arrival, C type ring 17 can be stuck in the groove of sliding sleeve overcoat 14, prevented piston 15 returns (referring to accompanying drawing 1～4).
When this hydraulic pressure sliding sleeve and the work of pressure-bearing short-circuit device, the course of work of pressure-bearing short circuit is that after the pressure-bearing short circuit arrived the precalculated position, ground pitching 3 applied hydraulic pressure; Hydraulic pressure reaches after the value for shear of shear pin 5, and shear pin 5 is cut off, and ball seat 4 can move down; With joint ring 6 hermetically closing bypass, need should be mentioned that, move to joint ring 6 at ball seat 4 and form piston seal chamber of meeting appearance in the process that seals with it; Stop ball seat to continue to move down, this moment, spring 9 was compressed in piston 8 meetings, thereby made ball seat 4 continue to move; By-pass prot this moment is closed fully, and the pressure-bearing short circuit bears very high pressure in the case, and function is achieved.
The course of work of hydraulic pressure sliding sleeve is that after the hydraulic pressure sliding sleeve arrived the precalculated position, ground applied hydraulic pressure; Hydraulic pressure reaches after the value for shear of shear pin 16, and shear pin 16 can be cut off, and piston 15 can move down; C type ring 17 can be stuck in the groove of sliding sleeve overcoat 14; Piston 15 can withstand on the sliding sleeve overcoat 14 at last, and the runner of sliding sleeve is opened, and function is achieved.
The above is the specific embodiment of this utility model; The above-mentioned flesh and blood that illustrates not the utility model constitutes restriction; Under the those of ordinary skill of technical field after having read this manual, can make an amendment or be out of shape the above-mentioned specific embodiment, and do not deviate from the essence and the scope of the utility model.
Claims (1)
1. hydraulic pressure sliding sleeve and pressure-bearing short-circuit device; It is made up of fitting sleeve (1), bypass cover (2), ball (3), ball seat (4), shear pin (5), joint ring (6), centerbody plug (7), piston (8), spring (9), centerbody (10), holding screw (11), top connection (12), sliding sleeve overcoat (14), C type ring (17); It is characterized in that: described hydraulic pressure sliding sleeve is made up of fitting sleeve (1), bypass cover (2), ball (3), ball seat (4), shear pin (5), joint ring (6), centerbody plug (7), piston (8), spring (9), centerbody (10) and holding screw (11); Fitting sleeve (1) and bypass cover (2) are through being threaded; Ball seat (4) is connected with bypass cover (2) through shear pin (5); Joint ring (6) is installed in the fitting sleeve (1); Centerbody plug (7) and bypass cover (2) are through being threaded; Piston (8) and spring (9) are installed in the centerbody plug (7), and spring (9) presses piston (8), and centerbody plug (7) and centerbody (10) are through being threaded; Shear pin (5) is equipped with at the middle part of bypass cover (2), and the right-hand member of bypass cover (2) and centerbody plug (7) is equipped with holding screw (11); Described pressure-bearing short circuit is made up of top connection (12), holding screw (13), sliding sleeve overcoat (14), piston (15), shear pin (16) and C type ring (17); Top connection (12) and sliding sleeve overcoat (14) are through being threaded; Piston (15) is connected with sliding sleeve overcoat (14) through shear pin (16), and C type ring (17) is stuck in the draw-in groove of piston (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201005668U CN202500543U (en) | 2012-03-18 | 2012-03-18 | Hydraulic slide sleeve and pressure-bearing short connector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201005668U CN202500543U (en) | 2012-03-18 | 2012-03-18 | Hydraulic slide sleeve and pressure-bearing short connector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202500543U true CN202500543U (en) | 2012-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201005668U Expired - Fee Related CN202500543U (en) | 2012-03-18 | 2012-03-18 | Hydraulic slide sleeve and pressure-bearing short connector device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202500543U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114364861A (en) * | 2019-11-05 | 2022-04-15 | 哈利伯顿能源服务公司 | Ball seat release apparatus |
| CN114458216A (en) * | 2021-07-26 | 2022-05-10 | 中国海洋石油集团有限公司 | While-drilling liquid circulation tool and use method thereof |
| CN114753788A (en) * | 2022-04-08 | 2022-07-15 | 中海油能源发展股份有限公司 | Flushing and seal checking integrated pipe column suitable for sand prevention well completion and operation method thereof |
-
2012
- 2012-03-18 CN CN2012201005668U patent/CN202500543U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114364861A (en) * | 2019-11-05 | 2022-04-15 | 哈利伯顿能源服务公司 | Ball seat release apparatus |
| US11994004B2 (en) | 2019-11-05 | 2024-05-28 | Halliburton Energy Services, Inc. | Ball seat release apparatus |
| CN114458216A (en) * | 2021-07-26 | 2022-05-10 | 中国海洋石油集团有限公司 | While-drilling liquid circulation tool and use method thereof |
| CN114458216B (en) * | 2021-07-26 | 2023-09-29 | 中国海洋石油集团有限公司 | Drilling fluid circulation tool and use method thereof |
| CN114753788A (en) * | 2022-04-08 | 2022-07-15 | 中海油能源发展股份有限公司 | Flushing and seal checking integrated pipe column suitable for sand prevention well completion and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20160318 |