CN2851520Y - Hydraulic diameter-changeable type stabilizer - Google Patents
Hydraulic diameter-changeable type stabilizer Download PDFInfo
- Publication number
- CN2851520Y CN2851520Y CN 200520135951 CN200520135951U CN2851520Y CN 2851520 Y CN2851520 Y CN 2851520Y CN 200520135951 CN200520135951 CN 200520135951 CN 200520135951 U CN200520135951 U CN 200520135951U CN 2851520 Y CN2851520 Y CN 2851520Y
- Authority
- CN
- China
- Prior art keywords
- valve cores
- spool
- main body
- groove
- central pipe
- 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 - Lifetime
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- Earth Drilling (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520135951 CN2851520Y (en) | 2005-11-18 | 2005-11-18 | Hydraulic diameter-changeable type stabilizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200520135951 CN2851520Y (en) | 2005-11-18 | 2005-11-18 | Hydraulic diameter-changeable type stabilizer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2851520Y true CN2851520Y (en) | 2006-12-27 |
Family
ID=37585476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200520135951 Expired - Lifetime CN2851520Y (en) | 2005-11-18 | 2005-11-18 | Hydraulic diameter-changeable type stabilizer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2851520Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101463712B (en) * | 2009-01-08 | 2011-05-25 | 西南石油大学 | Eccentric center-adjustable reducing stabilizer |
CN106368621A (en) * | 2016-11-28 | 2017-02-01 | 长江大学 | Multi-stage diameter variable stabilizer |
CN108915613A (en) * | 2018-07-19 | 2018-11-30 | 江小三 | A kind of hydraulic variable diameter stabilizer |
-
2005
- 2005-11-18 CN CN 200520135951 patent/CN2851520Y/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101463712B (en) * | 2009-01-08 | 2011-05-25 | 西南石油大学 | Eccentric center-adjustable reducing stabilizer |
CN106368621A (en) * | 2016-11-28 | 2017-02-01 | 长江大学 | Multi-stage diameter variable stabilizer |
CN106368621B (en) * | 2016-11-28 | 2019-02-12 | 长江大学 | A kind of multistage variable diameter stabilizer |
CN108915613A (en) * | 2018-07-19 | 2018-11-30 | 江小三 | A kind of hydraulic variable diameter stabilizer |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20081212 Address after: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee after: Western Drilling Kelamayi Drilling Technology Institute Address before: Hongyan Karamay Road, the Xinjiang Uygur Autonomous Region No. 80, zip code: 834000 Patentee before: Research Inst of Drilling Technology, Xinjiang Petroleum Administration |
|
ASS | Succession or assignment of patent right |
Owner name: WEST DRILLING KARAMAY DRILLING CRAFT RESEARCH INST Free format text: FORMER OWNER: DRILLING WELL TECHNOLOGY INSTITUTE, PETROLEUM ADMINISTRATION BUREAU, XINJIANG Effective date: 20081212 |
|
CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
EXPY | Termination of patent right or utility model |