CN203175470U - Hydraulic expanding packer - Google Patents
Hydraulic expanding packer Download PDFInfo
- Publication number
- CN203175470U CN203175470U CN 201320170198 CN201320170198U CN203175470U CN 203175470 U CN203175470 U CN 203175470U CN 201320170198 CN201320170198 CN 201320170198 CN 201320170198 U CN201320170198 U CN 201320170198U CN 203175470 U CN203175470 U CN 203175470U
- Authority
- CN
- China
- Prior art keywords
- central tube
- rubber sleeve
- center pipe
- hole
- sleeve base
- 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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- Filtration Of Liquid (AREA)
Abstract
The utility model discloses a hydraulic expanding packer which comprises a center pipe, an upper connector, a lower connector, an upper rubber sleeve base, a lower rubber sleeve base and a rubber sleeve, wherein the upper connector is arranged at the upper end of the center pipe; the upper rubber sleeve base which is mounted together with the upper connector is arranged at the upper part of the outer side of the center pipe; the lower connector is arranged at the lower end of the center pipe; the lower rubber sleeve base which is mounted together with the lower connector is arranged at the lower part of the outer side of the center pipe; the rubber sleeve is arranged at the outer side of the middle part of the center pipe and is positioned between the upper rubber sleeve base and the lower rubber sleeve base; two ends of the rubber sleeve are fixedly arranged on the outer wall of the center pipe respectively by the upper rubber sleeve base and the lower rubber sleeve base; and a through hole is formed in the middle part of the center pipe. Compared with the prior art, the hydraulic expanding packer disclosed by the utility model has the advantages of simple structure, reliable action, low possibility of blocking sand and strong universality.
Description
Technical field
The utility model relates to a kind of packer, is specifically related to a kind of hydraulic pressure inflatable packer.
Background technology
In oilfield process, need to utilize the space between packer shutoff working string and the borehole wall sometimes.Present hydraulic expansion formula packer commonly used, many complex structures and sand enter the packing element inner chamber easily, influence the contraction of packing element, form so-called " sand card " phenomenon.Unfreezing difficulty behind the generation sand card causes the adverse effect to field produces.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of hydraulic pressure inflatable packer is provided.
Its technical scheme is: comprise central tube, top connection, lower contact, go up glue tube base, lower rubber cylinder seat and packing element.The upper end of central tube is equipped with top connection, and the outer upper of central tube is provided with the last glue tube base of installing with top connection; The lower end of central tube is equipped with lower contact, and the outer lower portion of central tube is provided with the lower rubber cylinder seat of installing with lower contact; Be provided with packing element between the outside, central tube middle part, last glue tube base and the lower rubber cylinder seat, the two ends of packing element are fixed on the central tube outer wall by last glue tube base, lower rubber cylinder seat respectively; The central tube middle part is provided with through hole, and the through hole outer wrap has filter screen.
Wherein, described through hole is made as equally distributed 4-16, and is divided into the two rows arrangement.The diameter of described through hole is 5-15 millimeters.
The utility model has the following advantages compared with prior art: simple in structure, reliable in action, be difficult for the sand card takes place, and applicability is strong.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
The specific embodiment
With reference to Fig. 1, a kind of hydraulic pressure inflatable packer comprises central tube 1, top connection 2, lower contact 3, goes up glue tube base 4, lower rubber cylinder seat 6 and packing element 5.The upper end of central tube 1 is equipped with top connection 2, and the outer upper of central tube 1 is provided with the last glue tube base of installing with top connection 24; The lower end of central tube 1 is equipped with lower contact 3, and the outer lower portion of central tube 1 is provided with the lower rubber cylinder seat of installing with lower contact 36; Be provided with packing element 5 between the outside, central tube 1 middle part, last glue tube base 4 and the lower rubber cylinder seat 6, the two ends of packing element 5 are fixed on central tube 1 outer wall by last glue tube base 4, lower rubber cylinder seat 6 respectively; Central tube 1 middle part is provided with through hole 7, and the through hole outer wrap has filter screen 8.Wherein, described through hole 7 is made as equally distributed 4-16, and is divided into the two rows arrangement.The diameter of described through hole is 5-15 millimeters.
During operation, this device is transferred in the well behind the precalculated position, through the well head oil pipe pressure of fetching water in the pipe, water pressure enters slit between central tube 1 and the packing element 5 by through hole 7, and packing element 5 is outwards propped up, and packing finishes.The filter screen 8 of through hole 7 outer wrapping has effectively filtered the sandstone foreign material and has entered slit between central tube 1 and the packing element 5, has effectively prevented generation sand card phenomenon.
Claims (3)
1. hydraulic pressure inflatable packer, comprise central tube, top connection, lower contact, go up glue tube base, lower rubber cylinder seat and packing element, it is characterized in that: the upper end of central tube is equipped with top connection, and the outer upper of central tube is provided with the last glue tube base of installing with top connection; The lower end of central tube is equipped with lower contact, and the outer lower portion of central tube is provided with the lower rubber cylinder seat of installing with lower contact; Be provided with packing element between the outside, central tube middle part, last glue tube base and the lower rubber cylinder seat, the two ends of packing element are fixed on the central tube outer wall by last glue tube base, lower rubber cylinder seat respectively; The central tube middle part is provided with through hole, and the through hole outer wrap has filter screen.
2. hydraulic pressure inflatable packer according to claim 1, it is characterized in that: described through hole is made as equally distributed 4-16, and is divided into two rows and arranges.
3. hydraulic pressure inflatable packer according to claim 1 and 2, it is characterized in that: the diameter of described through hole is 5-15 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170198 CN203175470U (en) | 2013-04-08 | 2013-04-08 | Hydraulic expanding packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320170198 CN203175470U (en) | 2013-04-08 | 2013-04-08 | Hydraulic expanding packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175470U true CN203175470U (en) | 2013-09-04 |
Family
ID=49072185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320170198 Expired - Fee Related CN203175470U (en) | 2013-04-08 | 2013-04-08 | Hydraulic expanding packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175470U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587287A (en) * | 2016-03-07 | 2016-05-18 | 威海丰泰新材料科技股份有限公司 | Expansion type packer |
| CN107313741A (en) * | 2016-04-27 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of packer in complicated small pit shaft and its set method |
| CN108412455A (en) * | 2018-02-08 | 2018-08-17 | 江苏晶通石油技术有限公司 | A kind of solvable bridge plug and application method |
-
2013
- 2013-04-08 CN CN 201320170198 patent/CN203175470U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587287A (en) * | 2016-03-07 | 2016-05-18 | 威海丰泰新材料科技股份有限公司 | Expansion type packer |
| CN107313741A (en) * | 2016-04-27 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of packer in complicated small pit shaft and its set method |
| CN108412455A (en) * | 2018-02-08 | 2018-08-17 | 江苏晶通石油技术有限公司 | A kind of solvable bridge plug and application method |
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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: 20130904 Termination date: 20140408 |