CN203321415U - Balance packer for fracturing gas well - Google Patents
Balance packer for fracturing gas well Download PDFInfo
- Publication number
- CN203321415U CN203321415U CN2013202523404U CN201320252340U CN203321415U CN 203321415 U CN203321415 U CN 203321415U CN 2013202523404 U CN2013202523404 U CN 2013202523404U CN 201320252340 U CN201320252340 U CN 201320252340U CN 203321415 U CN203321415 U CN 203321415U
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- piston
- fracturing
- fixed
- central tube
- ring
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Abstract
The utility model relates to the technical field of oil field oil production engineering, and belongs to a balance packer for fracturing a gas well. The balance packer solves the problems that in the fracturing process, the upper portion and the lower portion of a rubber barrel of a packer for fracturing are unevenly stressed, so that a deblocked dowel is deblocked in advance, and the packer can not be kept in a blocked state. A lock ring 14 and a lock sleeve 15 are fixed on a lower connector 11 after being connected through screw threads, and then the lock ring 14 and the lock sleeve 15 are fixed on a lower piston sleeve 10 through the deblocked dowel 13, the outer end of an anti-collision ring 17 is fixedly connected with the lower piston sleeve 10 through a blocking dowel 16, the inner end of the anti-collision ring 17 is fixedly connected with the lower connector 11 through screw threads, and a ball-throwing sliding sleeve 12 is clamped on the shoulder of a center pipe 3. The balance packer for fracturing the gas well is mainly applied to multilayer fracturing, and has the advantages of being good in temperature resisting and pressure bearing performance, reliable in work, and capable of completely meeting the requirement of the multilayer high-temperature high-pressure application environment.
Description
Technical field: the utility model relates to the oil extraction in oil field field of engineering technology, belongs to a kind of multiple fracturing instrument of deep gas well.
Background technology: the grand celebration Xushen gas field is mainly exploited gas-bearing formation for battalion city group lava II, III class reservoir and Shahe subgroup Conglomerate Reservoir at present.Although such reservoir is very fine and close, its distribution area is wide, gas-bearing formation is thick, needs the multiple fracturing construction.Packer packing element bearing up-down force imbalance when packer is as subordinate's packer in fracturing process for multiple fracturing in the past, thereby make the deblocking pin shift to an earlier date deblocking, can not make packer remain the state of setting, can not meet the multiple fracturing construction process requirement of gas well fixed tubular column, develop specially this gas well fracturing balance packer for this reason.
Summary of the invention: the purpose of this utility model is that design can be when the deep gas well multiple fracturing, a kind of gas well fracturing balance packer of deblocking structure stress balance.
The utility model is realized by following technical measures: it be by top connection, adjustable ring, central tube, packing element, upper piston cover, upper fixed piston, fixing pin, in piston bush, middle fixed piston, lower piston cover, lower contact, pitching sliding sleeve, deblocking pin, lock ring, lock sleeve, set pin and anticollision ring forms, wherein top connection and adjustable ring by screwed connection in the central tube outside, three groups of packing elements are arranged in order and are placed in the central tube outside, upper fixed piston and middle fixed piston directly are connected on central tube by screw thread, the upper piston cover, middle piston bush is fixed together by fixing pin respectively, lower piston cover and lower contact are fixed together by screw thread, and be connected with central tube by screw thread, lock ring, after the lock sleeve screwed connection, be fixed in lower contact, and be fixed on lower piston by the deblocking pin and put, the anticollision ring outer end is overlapped fixing by setting pin and lower piston, anticollision ring the inner is fixed by screw thread and lower contact, the pitching sliding sleeve is stuck in the shoulder place of central tube, have three inlet openings on central tube.
Compared with the prior art the utility model has following advantage:
The utility model mechanism structure advantages of simple, efficiently solve the deblocking pin stressed, in advance by problems such as removing seal for packers, improved reliability and the safety of construction.Simultaneously, the utility model heatproof load performance is good, can meet Temperature Deep high-voltage applications environment fully.
The accompanying drawing explanation: Fig. 1 is structural representation of the present utility model, and Fig. 2 is the connection layout of Fig. 1.
1-top connection in figure, 2-adjustable ring, 3-central tube, the 4-packing element, 5-upper piston cover, the upper fixed piston of 6-, the 7-fixing pin, piston bush in 8-, fixed piston in 9-, 10-lower piston cover, 11-lower contact, 12-pitching sliding sleeve, 13-deblocking pin, 14-lock ring, 15-lock sleeve, 16-sets pin, the 17-anticollision ring.
The specific embodiment: below in conjunction with accompanying drawing, the utility model is described in further detail: it be by top connection 1, adjustable ring 2, central tube 3, packing element 4, upper piston cover 5, upper fixed piston 6, fixing pin 7, in piston bush 8, middle fixed piston 9, lower piston cover 10, lower contact 11, pitching sliding sleeve 12, deblocking pin 13, lock ring 14, lock sleeve 15, set pin 16 and anticollision ring 17 forms, wherein top connection 1 with adjustable ring 2 by screwed connection in central tube 3 outsides, three groups of packing elements 4 are arranged in order and are placed in central tube 3 outsides, upper fixed piston 6 and middle fixed piston 9 directly are connected on central tube 3 by screw thread, upper piston cover 5, middle piston bush 8 is fixed together by fixing pin 7 respectively, lower piston cover 10 and lower contact 11 are fixed together by screw thread, and be connected with central tube 3 by screw thread, lock ring 14, after lock sleeve 15 screwed connections, be fixed in lower contact 11, and be fixed on lower piston cover 10 by deblocking pin 13, anticollision ring 17 outer ends are fixing with lower piston cover 10 by setting pin 16, anticollision ring 17 the inners are fixing by screw thread and lower contact 11, pitching sliding sleeve 12 is stuck in the shoulder place of central tube 3, have three inlet openings 18 on central tube 3.
During on-the-spot the use, the utility model and pitching sliding sleeve are used in conjunction with.The utility model top is connected with the pressure break oil pipe, be lowered into precalculated position in well, ground adds hydraulic pressure, act on the utility model packer, setting sleeve 5, middle piston bush 8, lower piston overlap between 10 up drive lock rings 15 and central tube 3 relative displacement occur, and while reaching the certain pressure value, set pin 16 and cut off, compression packing element 4, continue pressurization until reach and set.In fracturing process, pitching sliding sleeve 12 moves to central tube 3 shoulder places, bottom, at this moment being applied to by inlet opening 18 pressure that sets piston 6, middle fixed piston 9 and lower contact 11 upper ends equates with the pressure that the outer annular space of pipe is applied to packing element 4 upper ends, the utility model is in equilibrium state, deblocking pin 13 stress balances, guaranteed in fracturing process that this practicality is newly all the time in effectively setting state.
Claims (1)
1. a gas well fracturing balance packer is characterized in that: it be by top connection (1), adjustable ring (2), central tube (3), packing element (4), upper piston cover (5), upper fixed piston (6), fixing pin (7), in piston bush (8), middle fixed piston (9), lower piston cover (10), lower contact (11), pitching sliding sleeve (12), deblocking pin (13), lock ring (14), lock sleeve (15), set pin (16) and anticollision ring (17) forms, wherein top connection (1) and adjustable ring (2) by screwed connection in central tube (3) outside, three groups of packing elements (4) are arranged in order and are placed in central tube (3) outside, upper fixed piston (6) and middle fixed piston (9) directly are connected on central tube (3) by screw thread, upper piston cover (5), middle piston bush (8) is fixed together by fixing pin (7) respectively, lower piston cover (10) and lower contact (11) are fixed together by screw thread, and be connected with central tube (3) by screw thread, lock ring (14), after lock sleeve (15) screwed connection, be fixed in lower contact (11), and be fixed on lower piston cover (10) by deblocking pin (13), anticollision ring (17) outer end is fixing with lower piston cover (10) by setting pin (16), anticollision ring (17) is inner fixing by screw thread and lower contact (11), pitching sliding sleeve (12) is stuck in the shoulder place of central tube (3), have three inlet openings (18) on central tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202523404U CN203321415U (en) | 2013-04-19 | 2013-04-19 | Balance packer for fracturing gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202523404U CN203321415U (en) | 2013-04-19 | 2013-04-19 | Balance packer for fracturing gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203321415U true CN203321415U (en) | 2013-12-04 |
Family
ID=49660778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202523404U Expired - Lifetime CN203321415U (en) | 2013-04-19 | 2013-04-19 | Balance packer for fracturing gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203321415U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150427A (en) * | 2016-08-25 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of gas well fracturing completion integral self-unsealing packing device |
| CN110454129A (en) * | 2019-08-08 | 2019-11-15 | 中国石油天然气股份有限公司 | A kind of gas well separate stratum fracfturing, the water integrated process pipe string of control |
| CN110735614A (en) * | 2019-10-11 | 2020-01-31 | 中国石油天然气股份有限公司 | fracturing plugging bridge plug and setting and unsetting method thereof |
-
2013
- 2013-04-19 CN CN2013202523404U patent/CN203321415U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150427A (en) * | 2016-08-25 | 2016-11-23 | 中国石油天然气股份有限公司 | A kind of gas well fracturing completion integral self-unsealing packing device |
| CN110454129A (en) * | 2019-08-08 | 2019-11-15 | 中国石油天然气股份有限公司 | A kind of gas well separate stratum fracfturing, the water integrated process pipe string of control |
| CN110454129B (en) * | 2019-08-08 | 2022-03-01 | 中国石油天然气股份有限公司 | Gas well separate-layer fracturing and water control integrated process pipe column |
| CN110735614A (en) * | 2019-10-11 | 2020-01-31 | 中国石油天然气股份有限公司 | fracturing plugging bridge plug and setting and unsetting method thereof |
| CN110735614B (en) * | 2019-10-11 | 2024-05-28 | 中国石油天然气股份有限公司 | Fracturing plugging bridge plug and setting and unsetting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |