CN2573665Y - Water plugging packer - Google Patents
Water plugging packer Download PDFInfo
- Publication number
- CN2573665Y CN2573665Y CN 02275473 CN02275473U CN2573665Y CN 2573665 Y CN2573665 Y CN 2573665Y CN 02275473 CN02275473 CN 02275473 CN 02275473 U CN02275473 U CN 02275473U CN 2573665 Y CN2573665 Y CN 2573665Y
- Authority
- CN
- China
- Prior art keywords
- deblocking
- unsealing
- packer
- baffle ring
- utility
- 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 new water plugging packer, which relates to a packer used for an oil field, particularly a water plugging packer for a small interlayer of the oil field. In a water plugging technique of the oil field, a regular packer can not carry out water plugging construction for the interlayer which is less than 0.5m. The utility model comprises an upper connector (1), a center pipe (2), an upper shell body (3), a rubber cylinder (4) and a single flow valve (5); the utility model also comprises an unsealing baffle ring (6), an unsealing plunger (7) and an unsealing pin (8), wherein, the unsealing baffle ring (6) is fixedly connected with the upper end of the outer wall of the center pipe (2); the unsealing plunger (7) is fixedly connected with the inner wall of the lower end of the upper connector (1); the unsealing pin (8) penetrates through the unsealing baffle ring (6) and the unsealing plunger (7). The utility model solves the problem that the small interlayer of the oil field development can not effectively plug water; the utility model has the advantages of simple structure and high bearing.
Description
Technical field: the utility model relates to a kind of packer of using on the oil field, particularly a kind of Packer for blocking water that uses on the little interlayer in oil field.
Background technology: in the Water in Water Shutoff in Oil Field technology,,, can not form effective packing to interlayer because tubing string elongation and measure error adopt conventional packer to be difficult to guarantee to be lowered into desired depth for interlayer less than 0.5m.Therefore, adopt conventional packer just can not carry out plug water construction for this class well.
Summary of the invention: the purpose of this utility model is at the effective problem of water blockoff of the medium and small interlayer of oil field development, a kind of novel Packer for blocking water is provided, its objective is such realization: novel Packer for blocking water comprises top connection 1, central tube 2, upper shell 3, packing element 4, ball-and-seat 5, it also comprises deblocking baffle ring 6, deblocking piston 7, deblocking pin 8, the outer wall upper end Joint of described deblocking baffle ring 6 and central tube 2, the lower end inwall Joint of deblocking piston 7 and top connection 1 is installed with deblocking pin 8 between deblocking baffle ring 6 and deblocking piston 7.Advantage of the present utility model is: it has solved in the effective problem of water blockoff of the medium and small interlayer of oil field development, has characteristics simple in structure, that pressure-bearing is high, and the length of packing element 4 can be according to adjusting processing, and is convenient and swift.
Description of drawings: Fig. 1 is a structural representation of the present utility model.
The specific embodiment one: present embodiment comprises top connection 1, central tube 2, upper shell 3, packing element 4, ball-and-seat 5, it also comprises deblocking baffle ring 6, deblocking piston 7, deblocking pin 8, the outer wall upper end Joint of described deblocking baffle ring 6 and central tube 2, the lower end inwall Joint of deblocking piston 7 and top connection 1, be installed with deblocking pin 8 between deblocking baffle ring 6 and deblocking piston 7, deblocking pin 8 can be controlled the relative displacement between deblocking baffle ring 6 and the deblocking piston 7.When envelope seat, pressurization in this packer central tube 2, liquid enters the gap of packing element 4 and central tube 2 through ball-and-seat 5, makes packing element 4 expansions, and after fluid pressure central tube 2 in descended, ball-and-seat 5 was closed, and packing element 4 is in expansion state, finishes seat and seals.During deblocking, on carry this packer, packing element 4 relies on and the frictional force of sleeve pipe is in motionless state, when on the external force carried when reaching setting value, deblocking pin 8 is cut off, and moves on the deblocking piston 7, open the deblocking passage, liquid overflows from the slit between deblocking piston 7 and the upper shell 3 in the packing element 4, and packing element 4 shrinks, and finishes deblocking.
The specific embodiment two: what present embodiment and the specific embodiment one were different is, the outer wall upper end of deblocking baffle ring 6 and central tube 2 is by being threaded, and deblocking piston 7 is connected by screw thread with the lower end inwall of top connection 1.
Claims (2)
1, a kind of novel Packer for blocking water, it comprises top connection (1), central tube (2), upper shell (3), packing element (4), ball-and-seat (5), it is characterized in that it also comprises deblocking baffle ring (6), deblocking piston (7), deblocking pin (8), the outer wall upper end Joint of described deblocking baffle ring (6) and central tube (2), the lower end inwall Joint of deblocking piston (7) and top connection (1) is installed with deblocking pin (8) between deblocking baffle ring (6) and deblocking piston (7).
2, novel Packer for blocking water according to claim 1, the outer wall upper end that it is characterized in that deblocking baffle ring (6) and central tube (2) is by being threaded, and deblocking piston (7) is connected by screw thread with the lower end inwall of top connection (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275473 CN2573665Y (en) | 2002-09-25 | 2002-09-25 | Water plugging packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02275473 CN2573665Y (en) | 2002-09-25 | 2002-09-25 | Water plugging packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2573665Y true CN2573665Y (en) | 2003-09-17 |
Family
ID=33739512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02275473 Expired - Fee Related CN2573665Y (en) | 2002-09-25 | 2002-09-25 | Water plugging packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2573665Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586455B (en) * | 2009-06-15 | 2012-10-10 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion type packer |
| CN108412426A (en) * | 2018-02-01 | 2018-08-17 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
-
2002
- 2002-09-25 CN CN 02275473 patent/CN2573665Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586455B (en) * | 2009-06-15 | 2012-10-10 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion type packer |
| CN108412426A (en) * | 2018-02-01 | 2018-08-17 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
| CN108412426B (en) * | 2018-02-01 | 2019-04-16 | 西南石油大学 | A kind of borehole wall eyelid retractor for oil/gas well self-advancing type water-jet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030917 Termination date: 20110925 |