CN202544800U - Uncased hole fracture packer of horizontal well - Google Patents
Uncased hole fracture packer of horizontal well Download PDFInfo
- Publication number
- CN202544800U CN202544800U CN2012201728332U CN201220172833U CN202544800U CN 202544800 U CN202544800 U CN 202544800U CN 2012201728332 U CN2012201728332 U CN 2012201728332U CN 201220172833 U CN201220172833 U CN 201220172833U CN 202544800 U CN202544800 U CN 202544800U
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- lock ring
- piston
- seat
- lock
- lower piston
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- Expired - Lifetime
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Abstract
The utility model relates to an uncased hole fracture packer of a horizontal well. The upper part of an inner pipe is connected with an upper joint, the lower part of the inner pipe is connected with a lower joint, an upper piston is arranged under an upper rubber tube group, the upper piston is matched and sealed with the inner pipe, a lower piston is arranged under the upper piston, the upper piston is connected with the upper part of a connecting sleeve, the lower piston is matched and sealed with the connecting sleeve and the inner pipe, the lower part of the connecting sleeve is connected with the upper part of a lock ring sleeve, the lower part of the lock ring sleeve is connected with a lock ring seat, a lock ring is arranged in the lock ring sleeve, the lock ring seat is connected with the lower part of the lower piston through a seat sealing shearing nail, an inner lock buckle is arranged on the lock ring, an outer lock buckle is arranged on the lower piston, the inner lock buckle arranged on the lock ring can be buckled with the outer lock buckle arranged on the lower piston, a rubber tube seat is arranged under the lower piston, and a lower rubber tube group is arranged under the rubber tube seat. The hydraulic seat sealing is applicable to the horizontal well packing, the double rubber tube groups are designed, the long-term effective work of the rubber tube groups is ensured, the uncased hole fracture packer is applicable to the uncased hole fracture operation, and the lock buckle device is designed, so rubber tubes are permanently in the compressed state. Therefore, the uncased hole fracture packer is suitable for the horizontal uncased hole well fracture.
Description
Technical field
The present invention is the equipment that the oil field open hole well is used at the bottom of with plugged well, is a kind of horizontal well bore hole pressure break packer.
Background technology
The inflatable packer that oil-field flooding is used is that packing element expands outwardly when the packing element internal pressure is higher than the packing element external pressure, realization sealing oil casing annular space.Will deblocking when present inflatable packer does not have pressure in inside; Be not suitable at the bottom of the permanent plugged well of oil field open hole well, the inflatable packer that has is provided with unidirectional mechanism in inside, deblocking not in the time of can guaranteeing not have pressure reduction within a certain period of time; But keep the not limited time of deblocking; Be not suitable for the requirement at the bottom of the permanent plugged well of oil field open hole well, it does not have pressure limiting mechanism yet yet, causes the packing element superpressure to damage easily; Do not reach the requirement at the bottom of the plugged well, and mechanical packer can not be in horizontal well the seat envelope.
Summary of the invention
The purpose of the utility model is a kind of horizontal well bore hole pressure break packer of design, is applicable to the horizontal open hole well fracturing work in oil field, and at the bottom of the permanent plugged well of ability.
The purpose of the utility model be achieved in that comprise top connection, go up the packing element group, interior pipe, upper piston, lower piston, adapter sleeve, lock ring cover, lock ring, lock ring seat, seat envelope shear pin, glue tube base, lower rubber cylinder group, lower contact, last packing element group, upper piston, lower piston, lock ring cover, lock ring, lock ring seat, glue tube base, lower rubber cylinder group suit on inner pipe, interior pipe top is connected with top connection; Interior pipe bottom is connected with lower contact, is upper piston under the last packing element group, upper piston and interior pipe fitted seal; Be lower piston under the upper piston, upper piston is connected with adapter sleeve top, lower piston and adapter sleeve, interior pipe fitted seal; The adapter sleeve bottom is connected with lock ring cover top, and lock ring cover bottom is connected with the lock ring seat, and lock ring is installed in the lock ring cover; The lock ring seat is connected the lower piston bottom by seat envelope shear pin; Inner lock buckle is arranged on the lock ring, outer clasp is arranged on the lower piston, the inner lock buckle on the lock ring can interlock with the outer clasp on the lower piston; Being glue tube base under the lower piston, is the lower rubber cylinder group under the glue tube base.
There is the expansion shoulder protector at last packing element group two ends.
The beneficial effect of the utility model is: hydraulic base sealed, be applicable to the horizontal well packing, and designed two packing element groups; Can guarantee that the packing element group leader phase effectively works; Be applicable to the open hole well fracturing work, designed locker, make packing element forever be in compressive state; Therefore, the present invention is applicable to the pressure break of horizontal bare hole well.
Description of drawings
Fig. 1 is the utility model embodiment assembling drawing.
The specific embodiment
Below in conjunction with Fig. 1 the embodiment of the utility model is described.
Can be known that by figure the embodiment of the utility model comprises top connection 1, goes up packing element group 3, interior pipe 4, upper piston 5, lower piston 6, adapter sleeve 7, lock ring cover 9, lock ring 10, lock ring seat 11, seat envelope shear pin 12, glue tube base 13, lower rubber cylinder group 14, lower contact 15, last packing element group 3, upper piston 5, lower piston 6, lock ring cover 9, lock ring 10, lock ring seat 11, glue tube base 13, lower rubber cylinder group 14 are managed on 4 in being sleeved on; Interior pipe 4 tops are connected with top connection 1, and interior pipe 4 bottoms are connected with lower contact 15, are upper pistons 5 under the last packing element group 3; Upper piston 5 and interior pipe 4 fitted seal are lower piston 6 under the upper piston 5, and upper piston 5 is connected with adapter sleeve 7 tops; Lower piston 6 and adapter sleeve 7, interior pipe 4 fitted seal; Adapter sleeve 7 bottoms are overlapped 9 tops with lock ring and are connected, and lock ring overlaps 9 bottoms and is connected with lock ring seat 11, and lock ring 10 is installed in the lock ring cover 9; Lock ring seat 11 is connected lower piston 6 bottoms by seat envelope shear pin 12; On the lock ring 10 inner lock buckle is arranged, outer clasp 8 is arranged on the lower piston 6, the inner lock buckle on the lock ring 10 can interlock with the outer clasp 8 on the lower piston 6; Being glue tube base 13 under the lower piston 6, is lower rubber cylinder group 14 under the glue tube base 13.There is expansion shoulder protector 2 at last packing element group 3 two ends.Also there is the expansion shoulder protector at lower rubber cylinder group 14 two ends.
During use, in horizontal well bore hole position, inwardly suppress under the utility model; Pressure gets between upper piston 5, the lower piston 6 from the hole on the interior pipe 4, makes an envelope shear pin 12 cut off lower piston 6 descending compression lower rubber cylinder groups 14; Packing element group 3 in the upper piston 5 up compressions makes it and the bore hole Well-wall sealer, meanwhile; Lock ring 10 also up with lower piston 6 on outer clasp 8 interlock, with the swelling state locking of last packing element group 3, lower rubber cylinder group 14.
Claims (2)
1. horizontal well bore hole pressure break packer comprises top connection (1), upward packing element group (3), interior pipe (4), upper piston (5), lower piston (6), adapter sleeve (7), lock ring cover (9), lock ring (10), lock ring seat (11), seat envelope shear pin (12), glue tube base (13), lower rubber cylinder group (14), lower contact (15), and it is characterized in that: upward packing element group (3), upper piston (5), lower piston (6), lock ring cover (9), lock ring (10), lock ring seat (11), glue tube base (13), lower rubber cylinder group (14) are sleeved on the interior pipe (4); Interior pipe (4) top is connected with top connection (1); Interior pipe (4) bottom is connected with lower contact (15), is upper piston (5) under the last packing element group (3), upper piston (5) and interior pipe (4) fitted seal; Under the upper piston (5) lower piston (6); Upper piston (5) is connected with adapter sleeve (7) top, and adapter sleeve (7) bottom is connected with lock ring cover (9) top, lower piston (6) and adapter sleeve (7), interior pipe (4) fitted seal; Lock ring cover (9) bottom is connected with lock ring seat (11); Lock ring (10) is installed in the lock ring cover (9), and lock ring seat (11) is connected lower piston (6) bottom by seat envelope shear pin (12), and lock ring has inner lock buckle on (10); Outer clasp (8) is arranged on the lower piston (6); Inner lock buckle on the lock ring (10) can interlock with the outer clasp 8 on the lower piston (6), is glue tube base (13) under the lower piston (6), is lower rubber cylinder group (14) under the glue tube base (13).
2. horizontal well bore hole pressure break packer according to claim 1 is characterized in that: going up packing element group (3) two ends has expansion shoulder protector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201728332U CN202544800U (en) | 2012-04-13 | 2012-04-13 | Uncased hole fracture packer of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201728332U CN202544800U (en) | 2012-04-13 | 2012-04-13 | Uncased hole fracture packer of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202544800U true CN202544800U (en) | 2012-11-21 |
Family
ID=47165452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201728332U Expired - Lifetime CN202544800U (en) | 2012-04-13 | 2012-04-13 | Uncased hole fracture packer of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202544800U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756609A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Packer |
| CN104088600B (en) * | 2014-06-27 | 2017-02-01 | 山东科技大学 | Gas drainage hole-sealing device |
| CN107002476A (en) * | 2014-11-17 | 2017-08-01 | 万加德石油工具及服务有限责任公司 | The region that temperature is enabled separates packer device |
| CN111749639A (en) * | 2019-03-28 | 2020-10-09 | 东营市汇诚石油工程技术有限责任公司 | Naked eye plugging device |
-
2012
- 2012-04-13 CN CN2012201728332U patent/CN202544800U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088600B (en) * | 2014-06-27 | 2017-02-01 | 山东科技大学 | Gas drainage hole-sealing device |
| CN107002476A (en) * | 2014-11-17 | 2017-08-01 | 万加德石油工具及服务有限责任公司 | The region that temperature is enabled separates packer device |
| CN107002476B (en) * | 2014-11-17 | 2020-09-29 | 万加德石油工具及服务有限责任公司 | Temperature activated zone separation packer apparatus |
| CN105756609A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Packer |
| CN111749639A (en) * | 2019-03-28 | 2020-10-09 | 东营市汇诚石油工程技术有限责任公司 | Naked eye plugging device |
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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 |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |