CN201972661U - Ball-casting opened self-locking sliding sleeve - Google Patents
Ball-casting opened self-locking sliding sleeve Download PDFInfo
- Publication number
- CN201972661U CN201972661U CN2010206655413U CN201020665541U CN201972661U CN 201972661 U CN201972661 U CN 201972661U CN 2010206655413 U CN2010206655413 U CN 2010206655413U CN 201020665541 U CN201020665541 U CN 201020665541U CN 201972661 U CN201972661 U CN 201972661U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- self
- ball
- locking
- casting
- 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
Links
- 238000005266 casting Methods 0.000 title abstract 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005488 sandblasting Methods 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a naked eye sectionalized fracture technology for developing a horizontal well in an oil or gas field, in particular to a ball-casting opened self-locking sliding sleeve which is used for opening a fracture sand blasting channel and keeps a production channel unblocked. An upper joint (1) and an outer cylinder (2), as well as a lower joint (6) and the outer cylinder (2) of the self-locking sliding sleeve are both in threaded connection; a self-locking mechanism (3) and a sliding sleeve ball seat (4) are mounted inside the outer barrel (2), a circulation channel (5) is formed on the outer cylinder (2), the self-locking mechanism (3) is arranged on the sliding sleeve ball seat (4), and the circulation channel (5) is sealed by the sliding sleeve ball seat (4). The self-locking sliding sleeve realizes that during the operation in the horizontal well section, the fracture sand blasting channel is opened by casting a ball and the self-locking sliding sleeve can be locked up to keep the production channel unblocked so as to reduce the cost of technical implementation. Moreover, the disadvantages that the existing ball-casting opened sliding sleeve cannot be locked to keep the circulation channel unblocked during the operation in the horizontal well section, and the cost for the foreign special ball-casting opened sliding sleeve for the horizontal well is too high are overcome.
Description
Technical field:
The utility model relates to a kind of oil, gas field development horizontal well bore hole staged fracturing technology, and is particularly a kind of as unlatching pressure break sandblast passage, and keeps producing the unimpeded pitching unlatching self-locking sliding sleeve of passage.
Background technology:
Domestic existing pitching unlatching sliding sleeve all is to be used for the straight well separate stratum fracfturing, and unimpeded by gravity unlatching and maintenance circulation canal, net horizontal section gravity disappears, and finishes pressure break though lean on pitching to open, and it is unimpeded to lock the maintenance circulation canal when producing; There is the pitching of horizontal well special use to open sliding sleeve abroad, but because implementation cost is too high, thereby apply difficulty.
The utility model content:
The technical problems to be solved in the utility model provides a kind of pitching and opens the self-locking sliding sleeve, this self-locking sliding sleeve has realized that pressure break sandblast passage is opened in pitching when the net horizontal section operation, and locking keeps the production passage unimpeded, and it is domestic supporting to realize that the self-locking sliding sleeve is opened in the special-purpose pitching of horizontal well barefoot completion staged fracturing technology, has reduced the process implementing cost.Overcome existing pitching and opened the too high deficiency of pitching unlatching sliding sleeve implementation cost that can't lock the unimpeded and external horizontal well special use of maintenance circulation canal when sliding over the net horizontal section operation.
Technical solution adopted in the utility model is: the self-locking sliding sleeve is opened in a kind of pitching, is made up of top connection, urceolus, self-locking mechanism, sliding sleeve tee, circulation canal and lower contact, and top connection is with urceolus with urceolus, lower contact and is threaded; Self-locking mechanism and sliding sleeve tee are housed in the urceolus, have circulation canal on the urceolus, self-locking mechanism is contained on the sliding sleeve tee, sliding sleeve tee sealing circulation canal.
The beneficial effects of the utility model are: the utility model is equipped with self-locking mechanism and sliding sleeve tee owing to having adopted in the urceolus, have the structure of circulation canal on the urceolus, thereby have when the net horizontal section operation pitching and open pressure break sandblast passage, and locking keeps producing the unimpeded function of passage, in addition, because it is domestic supporting to realize that the self-locking sliding sleeve is opened in the special-purpose pitching of horizontal well barefoot completion staged fracturing technology, thereby effectively reduces the process implementing cost.
Description of drawings:
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
As shown in drawings, the self-locking sliding sleeve is opened in a kind of pitching, is made up of top connection 1, urceolus 2, self-locking mechanism 3, sliding sleeve tee 4, circulation canal 5 and lower contact 6, and top connection 1 is with urceolus 2 with urceolus 2, lower contact 6 and is threaded; Self-locking mechanism 3 and sliding sleeve tee 4 are housed in the urceolus 2, have circulation canal 5 on the urceolus 2, self-locking mechanism 3 is contained on the sliding sleeve tee 4, sliding sleeve tee 4 sealing circulation canals 5.
The utility model is used for horizontal well bore hole staged fracturing technology, as unlatching pressure break sandblast passage, and keeps producing the unimpeded switching tools of passage.Before the pitching, sliding sleeve tee 4 sealing circulation canals 5; After the pitching, hydraulic drive sliding sleeve tee 4, and drive self-locking mechanism 3 and move down, circulation canal is opened, when moving to latched position, self-locking mechanism 3 is with unidirectional position and lock between sliding sleeve tee 4 and the urceolus 2.
Claims (1)
1. the self-locking sliding sleeve is opened in a pitching, be made up of top connection (1), urceolus (2), self-locking mechanism (3), sliding sleeve tee (4), circulation canal (5) and lower contact (6), top connection (1) is with urceolus (2) with urceolus (2), lower contact (6) and is threaded; It is characterized in that: self-locking mechanism (3) and sliding sleeve tee (4) are housed in the urceolus (2), have circulation canal (5) on the urceolus (2), self-locking mechanism (3) is contained on the sliding sleeve tee (4), sliding sleeve tee (4) sealing circulation canal (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206655413U CN201972661U (en) | 2010-12-17 | 2010-12-17 | Ball-casting opened self-locking sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206655413U CN201972661U (en) | 2010-12-17 | 2010-12-17 | Ball-casting opened self-locking sliding sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201972661U true CN201972661U (en) | 2011-09-14 |
Family
ID=44577768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206655413U Expired - Fee Related CN201972661U (en) | 2010-12-17 | 2010-12-17 | Ball-casting opened self-locking sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201972661U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733786A (en) * | 2012-07-04 | 2012-10-17 | 湖南唯科拓石油科技服务有限公司 | Sliding sleeve for mining oil-gas well in layering manner |
| CN102979494A (en) * | 2012-12-28 | 2013-03-20 | 中国石油集团渤海钻探工程有限公司 | Throwing open type multi-cluster sliding sleeve |
| CN110374551A (en) * | 2018-12-28 | 2019-10-25 | 成都众智诚成石油科技有限公司 | A kind of underground hydraulic-control starting sliding sleeve control system and control method |
-
2010
- 2010-12-17 CN CN2010206655413U patent/CN201972661U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733786A (en) * | 2012-07-04 | 2012-10-17 | 湖南唯科拓石油科技服务有限公司 | Sliding sleeve for mining oil-gas well in layering manner |
| CN102979494A (en) * | 2012-12-28 | 2013-03-20 | 中国石油集团渤海钻探工程有限公司 | Throwing open type multi-cluster sliding sleeve |
| CN102979494B (en) * | 2012-12-28 | 2015-10-28 | 中国石油集团渤海钻探工程有限公司 | Pitching open-type many bunches of sliding sleeves |
| CN110374551A (en) * | 2018-12-28 | 2019-10-25 | 成都众智诚成石油科技有限公司 | A kind of underground hydraulic-control starting sliding sleeve control system and control 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: 20110914 Termination date: 20121217 |