CN205936508U - Can shift and seal packer from testing - Google Patents
Can shift and seal packer from testing Download PDFInfo
- Publication number
- CN205936508U CN205936508U CN201620839233.5U CN201620839233U CN205936508U CN 205936508 U CN205936508 U CN 205936508U CN 201620839233 U CN201620839233 U CN 201620839233U CN 205936508 U CN205936508 U CN 205936508U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- test
- testing
- packer
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 241000239290 Araneae Species 0.000 claims abstract description 10
- 210000000282 Nails Anatomy 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 241000893018 Armeria Species 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- 230000002596 correlated Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000087 stabilizing Effects 0.000 description 1
- 230000001052 transient Effects 0.000 description 1
Abstract
The utility model provides a can shift and seal packer from testing, overcoat and upper piston dress go up the packing element, test the big envelope, packing element and push up the suit and on the overcoat, be equipped with the air -vent valve on testing the big envelope down on upper mandrel, are equipped with cone, slips, slip spider and lower piston at well spindle, and push -down cover one end is connected with the slip spider, and the other end and seat cover are equipped with catch and fixed ring through sitting a nailed joint in proper order on lower mandrel, and the seat cover is connected on lower mandrel of oil borehole operation usefulness fixed ring passes through the deblocking nailed joint on lower mandrel. During the use, seal to suppressing in the oil pipe to test, if test seal unqualified, but the shift position is tested and is sealed behind the pressure release, when test the involution check, messenger packer setting again steps up. The utility model discloses a biggest advantage is, seals when unqualified when testing, need not rise to out ground with the packer, can test behind the shift position in the pit again and seal to can practice thrift activity duration and expense greatly.
Description
Technical field
This utility model is related to a kind of shifted self-test sealing packer of oil underground work.
Background technology
Presently used self-test sealing packer, under lower going-into-well during precalculated position, suppresses after pitching, when pressure is raised to certain value
When set, due to being respectively equipped with packing element and lower rubber cylinder up and down testing big envelope, when boosting to certain value again, described test big envelope liquid
Circulation road is opened, and the liquid in oil pipe carries out testing envelope by testing big envelope passage and entering the annular space between upper lower rubber cylinder, when testing seal pressure
Decline, then explanation packer does not reach packing effect, at this moment needs to re-move position and tests envelope again, because packer has set
And cannot shift, only solution is honored as a queen from down-hole Qi Chu ground, after changeing after correlated parts under lower going-into-well again, repeats aforesaid operations and tests
Envelope, until testing sealing lattice, had so both extended the activity duration, had considerably increased operating cost again.
Content of the invention
In order to overcome the shortcomings of above-mentioned self-test sealing packer, this utility model provides one kind can shift self-test sealing packer,
When testing envelope and being unqualified it is not necessary to packer is played out ground, envelope can be tested again behind underground moving position, thus can greatly save
Activity duration and operating cost.
This utility model solves its technical problem and be employed technical scheme comprise that：Mandrel is by upper mandrel, middle mandrel and lower core
Axle is formed by connecting, and overcoat and upper piston are contained on mandrel, upper packing element, test big envelope, lower rubber cylinder and upper pushing sleeve fill on the coat, institute
State packing element and lower rubber cylinder can have two respectively, it is possibility to have three or more, but be economical rationality, preferably two, above-mentioned
Test big envelope and be provided with and test envelope valve, this tests envelope valve can be check valve or pressure regulator valve, for ease of adjusting pressure, preferably
Pressure regulator valve.Equipped with cone, slips, slip spider and lower piston on middle mandrel, lower pushing sleeve one end and slip spider connect, the other end with
Cover for seat is passed through to set nail connection, has tooth on described lower pushing sleeve inwall.Lock ring is sequentially arranged with lower mandrel and determines ring, cover for seat
Be connected on lower mandrel, described lock ring cylindrical on have tooth, in order that its can radial deformation, its whole wall thickness has one
Axial pass trough, described determine ring by unseal nail be connected on lower mandrel.During use, suppress into oil pipe, on liquid-driving with pressure
Piston upwards, thus driving upper pushing sleeve, lower rubber cylinder, testing big envelope and upper packing element moves upwards, thus extrude upper lower rubber cylinder and become
Shape simultaneously makes it contact with internal surface of sleeve pipe extruding, thus Seal Oil set annular space, continues to rise high pressure and to setting when testing seal pressure,
Liquid is entered and tests big envelope with the hole that puts outward by upper mandrel, so that the pressure regulator valve tested in big envelope is opened, liquid enter upper packing element and
Annular space between lower rubber cylinder carries out voltage stabilizing and tests envelope, when pressure transient declines, test envelope unqualified, need shift position to test again
Envelope, at this moment discharges oily overpressure, and packing element recovers to deform and make it and tests big envelope and the reset of upper pushing sleeve, above carries or transfers tubing string and move
Dynamic packer location, repeats aforesaid operations, then tests when testing seal pressure and stably not dropping and seals successfully.In the above-mentioned base testing seal pressure
When boosting to certain value again on plinth, lower piston moves upwards and cuts off and sets nail, and lower piston promotes slip spider to move upwards, slips
Seat promote slips move along cone inclined-plane so that slip insert wedging internal surface of sleeve pipe and realize packer setting, under above-mentioned
In the motion of piston, slip spider also drives coupled lower pushing sleeve to move upwardly together, so that the tooth on lower pushing sleeve inwall
It is meshed with the tooth on lock ring, thus pushing sleeve resets and keeps setting state under stoping when no pressing in oil pipe.Need to unseal
When, apply certain power upper lifting pipe post in well head, cutting off deblocking nail can unseal.
The beneficial effects of the utility model are, when testing envelope and being unqualified it is not necessary to packer is played out ground, can be in down-hole
Envelope is tested again, thus activity duration and operating cost can be greatlyd save behind shift position.
Brief description
With reference to the accompanying drawings and examples this utility model is described further.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of C in Fig. 1.
In figure 1. overcoat, 2. goes up mandrel, 3. goes up packing element, 4. tests big envelope, 5. lower rubber cylinder, 6. goes up pushing sleeve, 7. upper piston, 8. in
Mandrel, 9. cone, 10. slips, 11. slip spiders, 12. lower pistons, 13. lock rings, 14. determine ring, 15. deblocking nails, 16. times pushing sleeves,
17. set nail, 18. cover for seat, 19. times mandrels.
Specific embodiment
In fig. 1 and 2, mandrel is formed by connecting by upper mandrel 2, middle mandrel 8 and lower mandrel 19, and overcoat 1 and upper piston 7 fill
On upper mandrel 2, upper packing element 3, test big envelope 4, lower rubber cylinder 5 and upper pushing sleeve 6 and be contained on overcoat 1, described upper packing element 3 and lower rubber cylinder 5
Be respectively equipped with two, above-mentioned test big envelope 4 and be provided with test envelope valve, this tests envelope valve is pressure regulator valve.Equipped with cone 9, card on middle mandrel 8
Watts 10, slip spider 11 and lower piston 12, lower pushing sleeve 16 one end and slip spider 11 connect, and the other end and cover for seat 18 are by setting nail 17
Connect, lower pushing sleeve 16 inwall has tooth.Lock ring 13 is sequentially arranged with lower mandrel 19 and determines ring 14, cover for seat 18 is connected to down
On mandrel 19, the outer round surface of described lock ring 13 has tooth, an axial pass trough had on its whole wall thickness, described determine ring 14
It is connected on lower mandrel 19 by deblocking nail 15.
Claims (4)
1. a kind of shifted self-test sealing packer of oil underground work, mandrel is by upper mandrel (2), middle mandrel (8) and lower core
Axle (19) is formed by connecting, and it is characterized in that：Overcoat (1) and upper piston (7) are contained on mandrel (2), upper packing element (3), test big envelope
(4), lower rubber cylinder (5) and upper pushing sleeve (6) are contained on overcoat (1), and described upper packing element (3) and lower rubber cylinder (5) are respectively equipped with two,
Cone (9), slips (10), slip spider (11) and lower piston (12), lower pushing sleeve (16) one end and card are sequentially arranged with middle mandrel (8)
Watt seat (11) connects, and the other end is connected by setting nail (17) with cover for seat (18), is sequentially arranged with lock ring on lower mandrel (19)
(13) He Dinghuan (14), cover for seat (18) is connected on lower mandrel (19), described determine ring (14) pass through deblocking nail (15) be connected to down
On mandrel (19).
2. according to claim 1 shift self-test sealing packer, it is characterized in that being provided with pressure regulation in above-mentioned testing on big envelope (4)
Valve.
3. according to claim 1 shift self-test sealing packer, it is characterized in that having tooth on lower pushing sleeve (16) inwall.
4. according to claim 1 shift self-test sealing packer, the outer round surface that it is characterized in that lock ring (13) has
Tooth, and have an axial pass trough on its whole wall thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839233.5U CN205936508U (en) | 2016-07-31 | 2016-07-31 | Can shift and seal packer from testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620839233.5U CN205936508U (en) | 2016-07-31 | 2016-07-31 | Can shift and seal packer from testing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936508U true CN205936508U (en) | 2017-02-08 |
Family
ID=57925457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620839233.5U Expired - Fee Related CN205936508U (en) | 2016-07-31 | 2016-07-31 | Can shift and seal packer from testing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936508U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826588A (en) * | 2019-03-27 | 2019-05-31 | 孙绍武 | A kind of simple reparation formula water injection well packer |
| CN110552650A (en) * | 2019-09-24 | 2019-12-10 | 中国石油集团渤海钻探工程有限公司 | Temporary well head block |
-
2016
- 2016-07-31 CN CN201620839233.5U patent/CN205936508U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826588A (en) * | 2019-03-27 | 2019-05-31 | 孙绍武 | A kind of simple reparation formula water injection well packer |
| CN109826588B (en) * | 2019-03-27 | 2020-02-14 | 山东华冠能源技术有限公司 | Simple repairing type water injection well packer |
| CN110552650A (en) * | 2019-09-24 | 2019-12-10 | 中国石油集团渤海钻探工程有限公司 | Temporary well head block |
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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: 20170208 Termination date: 20170731 |