CN2651433Y - Small diameter inflatable packer for water injection well - Google Patents
Small diameter inflatable packer for water injection well Download PDFInfo
- Publication number
- CN2651433Y CN2651433Y CN 03252151 CN03252151U CN2651433Y CN 2651433 Y CN2651433 Y CN 2651433Y CN 03252151 CN03252151 CN 03252151 CN 03252151 U CN03252151 U CN 03252151U CN 2651433 Y CN2651433 Y CN 2651433Y
- Authority
- CN
- China
- Prior art keywords
- glue cylinder
- threaded
- screw thread
- sleeve
- small diameter
- 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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Abstract
The utility model relates to a packer for expansion water injection casing deformation well of small diameter, which belongs to underwell fittings of petroleum machinery. An upper joint 1 is connected with a central pipe 5 through a screw thread as the same way as a connecting sleeve 2 and an upper glue cylinder holder 4; a checkvalve 3 is linked with the connecting sleeve through the screw thread; one end of the glue cylinder 6 is connected with the upper glue cylinder holder through the screw thread and another end is connected with a lower glue cylinder holder 7 through the screw thread; a sealing piston 8 is connected with a cylinder sleeve 9 in gliding which is glidingly connected with a lower joint 10; the lower joint is connected with the central pipe 5 through the screw thread. The utility model has the advantage of novel structure; the glue cylinder operates in vertical compression and radial extension at the same time, namely, the lower glue cylinder holder moves the vertical compression glue cylinder upward, therefore, the glue cylinder is safe and reliable during setting, thus ensuring the normal production.
Description
Technical field
The utility model relates to a kind of petroleum machinery down-hole accessory.
Background technology
At present, oil field part oil well and well are because of crustal movement, cause casing deformation, latus rectum narrows down, diminishes, and is example with 51/2 sleeve pipe, and its latus rectum can narrow down to 80mm by original 125mm, and to carry out operation to such sleeve pipe, the external diameter of its power tool just must be less than 80mm, and the inflatable packer external diameter that use in current oil field can't operation for the sleeve pipe of latus rectum below 90mm mostly more than 90mm.When inflatable packer sets, be to rely on to add compression swelling in the packing element and fill space between oil pipe and the sleeve pipe, because casing deformation, latus rectum narrows down, diminishes, so the external diameter of packing element just is less than 90mm, be generally 80mm at present, again owing to the upper and lower glue tube base of existing packer is fixed, packing element very easily expands cruelly when it sets, and influence is produced and normally carried out.
Summary of the invention
The utility model provides a kind of minor diameter expanding water filling casing deformation well packer, having solved the prior art scheme is: top connection 1 is threaded with central tube 5, adapter sleeve 2 is threaded with last glue tube base 4, one way valve 3 is threaded with this adapter sleeve, packing element 6 one ends are threaded with last glue tube base, the other end is threaded with lower rubber cylinder seat 7, seat envelope piston 8 is slidingly connected with excessive cylinder sleeve 9, being somebody's turn to do excessive cylinder sleeve and lower contact 10 is slidingly connected, this lower contact is threaded with central tube 5, and deblocking pin 11 is fixedlyed connected with excessive cylinder sleeve.During use, be connected on the oil pipe by upper and lower joint, after the G.I.H predetermined work degree of depth, in oil pipe, pump into clear water by ground, water is entered in the one way valve by central tube, enters in the packing element again, and packing element is expanded under the fluid pressure differential effect, water is entered in the sap cavity by the central tube lower end simultaneously, the promotion piston head is up, and piston head is up by deblocking pin pulling lock tube, to assigned address, at this moment packing element continues the envelope that expands under differential pressure action.When ground stopped water filling, hydraulic pressure lowered in the oil pipe, at this moment closed check valve.Water is closed in the packing element, finishes the seat envelope.When end-of-job, when needing use deblocking, upwards carry tubing string, cut off the deblocking pinning, liquid promotes piston head and moves down in the packing element, cross lower joint sleeve after, the interior liquid of packing element flows back in the oil pipe, packing element shrinks under differential pressure action, finishes deblocking.
Advantage of the present utility model is: novel structure, packing element adopt vertical compression and radial dilatation dual mode to carry out simultaneously, and promptly the lower rubber cylinder seat moves up and vertically compresses packing element, and packing element is safe and reliable when it sets, and guarantees normally carrying out of production.
Description of drawings
Accompanying drawing is the utility model structural representation.
The specific embodiment
Claims (1)
1, a kind of minor diameter expanding water filling casing deformation well packer, top connection (1) is threaded with central tube (5), adapter sleeve (2) is threaded with last glue tube base (4), one way valve (3) is threaded with this adapter sleeve, packing element (6) one ends are threaded with last glue tube base, the other end is threaded with lower rubber cylinder seat (7), it is characterized in that: be slidingly connected with seat envelope piston (8) and excessive cylinder sleeve (9), being somebody's turn to do excessive cylinder sleeve and lower contact (10) is slidingly connected, this lower contact is threaded with central tube (5), and deblocking pin (11) is fixedlyed connected with excessive cylinder sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03252151 CN2651433Y (en) | 2003-09-10 | 2003-09-10 | Small diameter inflatable packer for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03252151 CN2651433Y (en) | 2003-09-10 | 2003-09-10 | Small diameter inflatable packer for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2651433Y true CN2651433Y (en) | 2004-10-27 |
Family
ID=34327898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03252151 Expired - Fee Related CN2651433Y (en) | 2003-09-10 | 2003-09-10 | Small diameter inflatable packer for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2651433Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071900A (en) * | 2010-11-23 | 2011-05-25 | 中国石油天然气股份有限公司 | Custom-pressure expandable naked eye packer |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN107060680A (en) * | 2017-06-23 | 2017-08-18 | 孙东生 | Downhole packer system |
| CN110306948A (en) * | 2019-06-11 | 2019-10-08 | 中国石油大学(北京) | Packer |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
-
2003
- 2003-09-10 CN CN 03252151 patent/CN2651433Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071900A (en) * | 2010-11-23 | 2011-05-25 | 中国石油天然气股份有限公司 | Custom-pressure expandable naked eye packer |
| CN102071900B (en) * | 2010-11-23 | 2013-04-24 | 中国石油天然气股份有限公司 | Custom-pressure expandable naked eye packer |
| CN102561988A (en) * | 2012-01-18 | 2012-07-11 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN102561988B (en) * | 2012-01-18 | 2014-04-02 | 中国石油天然气股份有限公司 | Small-diameter water-swelling setting plug |
| CN107060680A (en) * | 2017-06-23 | 2017-08-18 | 孙东生 | Downhole packer system |
| CN107060680B (en) * | 2017-06-23 | 2019-10-01 | 孙东生 | Downhole packer system |
| CN110306948A (en) * | 2019-06-11 | 2019-10-08 | 中国石油大学(北京) | Packer |
| CN110306948B (en) * | 2019-06-11 | 2020-08-28 | 中国石油大学(北京) | Packer (CN) |
| CN113294119A (en) * | 2020-02-21 | 2021-08-24 | 中国石油天然气股份有限公司 | Packer and well completion structure |
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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 |