CN101586455A - Anchoring expansion type packer - Google Patents
Anchoring expansion type packer Download PDFInfo
- Publication number
- CN101586455A CN101586455A CNA2009100162359A CN200910016235A CN101586455A CN 101586455 A CN101586455 A CN 101586455A CN A2009100162359 A CNA2009100162359 A CN A2009100162359A CN 200910016235 A CN200910016235 A CN 200910016235A CN 101586455 A CN101586455 A CN 101586455A
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- China
- Prior art keywords
- jacket
- rubber cylinder
- packing element
- joint
- expansion type
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- 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.)
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Abstract
The invention discloses an anchoring expansion type packer, which consists of an upper joint, an upper jacket, an inner pipe, a rubber cylinder, a lower jacket and a lower joint. A small screw thread at the lower part of the upper joint is connected with the upper part of the inner pipe, the lower part of the inner pipe is connected with the upper part of the lower joint, a large screw thread at the lower part of the upper joint is connected with the upper part of the upper jacket, the rubber cylinder is positioned outside the inner pipe, a small diameter section at the upper part of the rubber cylinder is sleeved in the upper jacket, a small diameter section at the lower part of the rubber cylinder is sleeved in the lower jacket, the lower part of the lower jacket is positioned on the lower joint, the inner pipe is provided with screen seams, the lower part of the upper jacket wrapping the rubber cylinder is milled with a strip body, and the strip body is provided with a cog. When the rubber cylinder expands, the strip body milled at the lower part of the upper jacket expands, then the strip body is anchored on a sleeve under the action of the cog, and the rubber cylinder expands in an annular space of the sleeve sealed by oil; therefore, the anchoring expansion type packer can anchor a water injection pipe column, can prevent the pipe column from generating creep, cannot cause shear damage to the rubber cylinder, can improve the service life of the packer, and has remarkable economic benefit.
Description
One, technical field
The present invention is the packer that separated-zone water infection oil field is used, and is a kind of anchoring expansion type packer.
Two, background technology
The inflatable packer that oil-field flooding is used is that packing element expands outwardly when the packing element internal pressure is higher than the packing element external pressure, realizes the purpose of sealing oil casing annular space.Present inflatable packer can not be anticreep.When water injection well stopped for some reason to annotate and recovers water filling, water injection string can extend and shorten, and promptly tubing string produces wriggling.When tubing string produces wriggling, because packing element do not regain, and produces friction between the sleeve pipe, make packing element shear failure, packer can not Sealed casing pipe during water filling, does not reach the purpose of seperated layer water injection.
Three, summary of the invention
The purpose of this invention is to provide a kind of anchoring expansion type packer, can carry out grappling, can prevent that tubing string from producing wriggling, improves the application life of packer water injection string.
The object of the present invention is achieved like this: be made up of top connection, upper jacket, interior pipe, packing element, lower jacket, lower contact, top connection bottom minor thread is connected with interior pipe top, interior pipe bottom is connected with lower contact top, top connection bottom major thread is connected with upper jacket top, packing element is in outside the interior pipe, packing element top reduced diameter section is sleeved in the upper jacket, packing element bottom reduced diameter section is sleeved in the lower jacket, the lower jacket bottom is in the lower contact, the sieve seam is arranged on the interior pipe, the upper jacket bottom that encases packing element is milled and is split into the bar body, on the bar body teeth is arranged.
Lower jacket is sleeved on outside the lower contact top, between lower jacket and the lower contact lower seal is installed.
Top connection and upper jacket connection of thread are installed sealing ring.
The invention has the beneficial effects as follows: the upper jacket bottom that encases packing element is milled and is split into the bar body, on the bar body teeth are arranged, the bar body expansion that mill out the upper jacket bottom during packing element expansion, under the teeth effect it is anchored on the sleeve pipe, this moment, packing element was also expanded at sleeve pipe by sealing up oil casing annular space, therefore, the present invention can carry out grappling to water injection string, can prevent that tubing string from producing the wriggling packing element and shear failure can not take place, can improve the application life of packer, have remarkable economic efficiency.
Four, description of drawings
Accompanying drawing is a structure assembling drawing of the present invention.
Five, the specific embodiment
Form by top connection 1, last sealing ring 2, upper jacket 3, interior pipe 5, packing element 6, lower jacket 7, lower contact 8, top connection 1 bottom minor thread is connected with interior pipe 5 tops, interior pipe 5 bottoms are connected with lower contact 9 tops, top connection 1 bottom major thread is connected with upper jacket 3 tops, manage outside 5 in packing element 6 is in, packing element 6 top reduced diameter sections are sleeved in the upper jacket 3, packing element 6 bottom reduced diameter sections are sleeved in the lower jacket 7, lower jacket 7 is sleeved on outside lower contact 9 tops, sieve seam 10 is arranged on the interior pipe 5, upper jacket 3 bottoms that encase packing element 6 are milled and are split into bar body 4, on the bar body 4 teeth are arranged.Lower seal 8 is installed between lower jacket 7 and the lower contact 9.Top connection 1 is installed sealing ring 2 with upper jacket 3 connection of thread.
During water filling, injecting the sieve seam 10 of water on interior pipe 5 directly goes in the packing element 6, under differential pressure action, make its expansion tightly be posted on the internal surface of sleeve pipe, thereby sealing oil casing annular space, making upper jacket 3 bottoms that encase packing element 6 mill the bar body 4 that is split into during packing element 6 expansions also expands, under the teeth effect, it is anchored on the sleeve pipe, can not wriggles thereby water injection string is anchored.
Claims (3)
1, a kind of anchoring expansion type packer, by top connection (1), upper jacket (3), interior pipe (5), packing element (6), lower jacket (7), lower contact (9) is formed, top connection (1) bottom minor thread is connected with interior pipe (5) top, interior pipe (5) bottom is connected with lower contact (9) top, top connection (1) bottom major thread is connected with upper jacket (3) top, packing element (6) is in outside the interior pipe (5), packing element (6) top reduced diameter section is sleeved in the upper jacket (3), packing element (6) bottom reduced diameter section is sleeved in the lower jacket (7), lower jacket (7) bottom is in the lower contact (9), sieve seam (10) is arranged on the interior pipe (5), it is characterized in that: upper jacket (3) bottom that encases packing element (6) is milled and is split into bar body (4), and the bar body has teeth on (4).
2, anchoring expansion type packer according to claim 1 is characterized in that: lower jacket (7) is sleeved on outside lower contact (9) top, between lower jacket (7) and the lower contact (9) lower seal (8) is installed.
3, anchoring expansion type packer according to claim 1 is characterized in that: top connection (1) is installed sealing ring (2) with upper jacket (3) connection of thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910016235A CN101586455B (en) | 2009-06-15 | 2009-06-15 | Anchoring expansion type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910016235A CN101586455B (en) | 2009-06-15 | 2009-06-15 | Anchoring expansion type packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101586455A true CN101586455A (en) | 2009-11-25 |
| CN101586455B CN101586455B (en) | 2012-10-10 |
Family
ID=41370860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910016235A Expired - Fee Related CN101586455B (en) | 2009-06-15 | 2009-06-15 | Anchoring expansion type packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101586455B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797427A (en) * | 2012-08-27 | 2012-11-28 | 中国地质科学院勘探技术研究所 | Rock core ejection method |
| CN112443290A (en) * | 2019-08-28 | 2021-03-05 | 中国石油化工股份有限公司 | Anchoring packing cement surface control device and well cementation tubular column comprising same |
| CN114320214A (en) * | 2021-12-29 | 2022-04-12 | 东营市兆鑫工贸有限责任公司 | Packer for producing and injecting steam |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3420306A (en) * | 1966-12-19 | 1969-01-07 | Cicero C Brown | Well anchor or packer |
| CN2123605U (en) * | 1992-06-20 | 1992-12-02 | 长庆石油勘探局钻采工艺研究院 | Hydraulic anchorage device |
| CN2573665Y (en) * | 2002-09-25 | 2003-09-17 | 大庆油田有限责任公司 | Water plugging packer |
| CN2725513Y (en) * | 2004-07-12 | 2005-09-14 | 辽河石油勘探局 | Impact small diameter plug |
| CN2755273Y (en) * | 2004-12-03 | 2006-02-01 | 盘锦华源石油机械厂 | Super-expand packer |
| CN2823539Y (en) * | 2005-06-16 | 2006-10-04 | 徐敏生 | Expansion type water injector packer |
| CN201155318Y (en) * | 2008-02-19 | 2008-11-26 | 中国海洋石油总公司 | Bore rod inner packer |
| CN101358513A (en) * | 2008-07-08 | 2009-02-04 | 东营市祥生工贸有限责任公司 | Water injection packer |
| CN201443352U (en) * | 2009-06-15 | 2010-04-28 | 东营市兆鑫工贸有限责任公司 | Anchoring expansion packer |
-
2009
- 2009-06-15 CN CN200910016235A patent/CN101586455B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797427A (en) * | 2012-08-27 | 2012-11-28 | 中国地质科学院勘探技术研究所 | Rock core ejection method |
| CN112443290A (en) * | 2019-08-28 | 2021-03-05 | 中国石油化工股份有限公司 | Anchoring packing cement surface control device and well cementation tubular column comprising same |
| CN114320214A (en) * | 2021-12-29 | 2022-04-12 | 东营市兆鑫工贸有限责任公司 | Packer for producing and injecting steam |
| CN114320214B (en) * | 2021-12-29 | 2022-06-07 | 东营市兆鑫工贸有限责任公司 | Packer for producing and injecting steam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101586455B (en) | 2012-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20121010 Termination date: 20130615 |