CN2651432Y - Reusable packer - Google Patents
Reusable packer Download PDFInfo
- Publication number
- CN2651432Y CN2651432Y CN 200320112676 CN200320112676U CN2651432Y CN 2651432 Y CN2651432 Y CN 2651432Y CN 200320112676 CN200320112676 CN 200320112676 CN 200320112676 U CN200320112676 U CN 200320112676U CN 2651432 Y CN2651432 Y CN 2651432Y
- Authority
- CN
- China
- Prior art keywords
- threaded
- screw thread
- tube
- cap
- central pipe
- 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
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a packer capable of repeated setting, which belongs to petroleum extraction machine. An upper joint 1 is connected with an upper central pipe 11 through a screw thread as the same way as the upper central pipe and a lower central pipe 14; the central pipe is also connected with a lower joint 16 through the screw thread as the same way as the upper joint 1 and an upper adjust cap 2 as well as an upper bearing cap 3 and an external core pipe 4; a glue cylinder 5 is suited outside the external core pipe; a lower bearing ring 6 is connected with the external core pipe glidingly; an elastic slips neck bush 8 is connected with an elastic slips 9 through the screw thread; a setting nails 7 is connected with a connecting sleeve 10 and the elastic slips 9; a setting piston 15 is connected with the cylinder sleeve 17 through the screw thread; the lower joint is connected with a lower adjust cap 18 through the screw thread; the elastic slips 9 has the slip teeth; the seal decapsulation sleeve 13 is connected with the lower central pipe 14 through the screw thread as the same way as the connecting sleeve 10 and a lock bushing 12. The utility model has the advantages that: the setting and the seal decapsulation can be conducted repeatedly, thus saving the production time and cost.
Description
Technical field
The utility model belongs to oil exploitation machinery.
Background technology
At present, the oil field is used for the packer that a series of operations such as underground water-injection, water detection, test, water blockoff use and mostly is disposable products, be that packer in the lower going-into-well is honored as a queen through once setting to conciliate, want secondary and just set and to propose oil well to packer, after reinstalling, overhauling again in the lower going-into-well.Improved operating cost like this, because of the production operation expense that proposes a packer is approximately wanted 30,000 yuan.
Summary of the invention
The utility model provides a kind of packer that repeats to set, to solve the problem that present packer mostly is disposable products.The technical scheme that the utility model is taked is: top connection 1 is threaded with upper center tube 11, this upper center tube is threaded with lower center tube 14, this lower center tube is threaded with lower contact 16, top connection 1 is threaded with rise cap 2, last pressure-bearing cap 3 is threaded with excenter tube 4, packing element 5 is socketed in the outside of excenter tube, following bearing ring 6 is slidingly connected with excenter tube, elasticity slips neck bush 8 is threaded with elasticity slips 9, set shear pin 7 and connect adapter sleeve 10 and elasticity slips 9, setting piston 15 is threaded with excessive cylinder sleeve 17, lower contact is threaded with downward modulation cap 18, on the elasticity slips 9 slip insert is arranged, separate big envelope 13 and be threaded with lower center tube 14, adapter sleeve 10 is threaded with lock tube 12.During work, the upper and lower joint of this packer is connected on the tubing string, packer is arrived the underground work position down, in oil pipe, inject band by ground then and press clear water, clear water enters in the packer by packer lower center tube hydrophthalmia, promotes to set piston and moves up, and sets piston and drives lock tube, adapter sleeve moves up and compresses packing element, and packer begins to set.When the hydraulic pressure that injects reached requirement, packer set fully.Lock tube alveolus and slip insert are locked, and packer is finished and set.When needs proposed ground with packer, as long as lift power on necessarily for tubing string, the upper and lower central tube of packer moved up, drive is separated big envelope and is moved up, and deblocking cover compression slip insert makes slip insert break away from lock tube tooth groove, under the elastic force effect of packing element, the packer deblocking.
Advantage of the present utility model is: novel structure, make to set with deblocking and can repeat in the down-hole repeatedly to have saved the production time, and saved cost of production simultaneously.
Description of drawings
The utility model structural representation.
The specific embodiment
Top connection 1 is threaded with upper center tube 11, this upper center tube is threaded with lower center tube 14, this lower center tube is threaded with lower contact 16, top connection 1 is threaded with rise cap 2, last pressure-bearing cap 3 is threaded with excenter tube 4, packing element 5 is socketed in the outside of excenter tube, following bearing ring 6 is slidingly connected with excenter tube, elasticity slips neck bush 8 is threaded with elasticity slips 9, sets shear pin 7 and connects adapter sleeve 10 and elasticity slips 9, sets piston 15 and is threaded with excessive cylinder sleeve 17, lower contact is threaded with downward modulation cap 18, on the elasticity slips 9 slip insert is arranged, separate big envelope 13 and be threaded with lower center tube 14, adapter sleeve 10 is threaded with lock tube 12.
Claims (1)
1, a kind of packer that repeats to set, comprise that top connection (1) is threaded with upper center tube (11), this upper center tube is threaded with lower center tube (14), this lower center tube is threaded with lower contact (16), top connection (1) is threaded with rise cap (2), last pressure-bearing cap (3) is threaded with excenter tube (4), packing element (5) is socketed in the outside of excenter tube, following bearing ring (6) is slidingly connected with excenter tube, elasticity slips neck bush (8) is threaded with elasticity slips (9), set shear pin (7) and connect adapter sleeve (10) and elasticity slips (9), set piston (15) and be threaded with excessive cylinder sleeve (17), lower contact is threaded with downward modulation cap (18), and it is characterized in that: the elasticity slips has slip insert on (9), separate big envelope (13) and be threaded with lower center tube (14), adapter sleeve (10) is threaded with lock tube (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320112676 CN2651432Y (en) | 2003-11-10 | 2003-11-10 | Reusable packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320112676 CN2651432Y (en) | 2003-11-10 | 2003-11-10 | Reusable packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2651432Y true CN2651432Y (en) | 2004-10-27 |
Family
ID=34344731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320112676 Expired - Fee Related CN2651432Y (en) | 2003-11-10 | 2003-11-10 | Reusable packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2651432Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576213A (en) * | 2019-09-30 | 2021-03-30 | 中国石油化工股份有限公司 | Manufacturing method of water injection packer, easy-to-release water injection packer and construction method |
-
2003
- 2003-11-10 CN CN 200320112676 patent/CN2651432Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576213A (en) * | 2019-09-30 | 2021-03-30 | 中国石油化工股份有限公司 | Manufacturing method of water injection packer, easy-to-release water injection packer and construction method |
| CN112576213B (en) * | 2019-09-30 | 2023-12-29 | 中国石油化工股份有限公司 | Manufacturing method of water injection packer, water injection packer easy to unlock and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |