CN101067366A - 一种充气钻井密封装置 - Google Patents
一种充气钻井密封装置 Download PDFInfo
- Publication number
- CN101067366A CN101067366A CN 200710011555 CN200710011555A CN101067366A CN 101067366 A CN101067366 A CN 101067366A CN 200710011555 CN200710011555 CN 200710011555 CN 200710011555 A CN200710011555 A CN 200710011555A CN 101067366 A CN101067366 A CN 101067366A
- Authority
- CN
- China
- Prior art keywords
- ring
- plastic cement
- screw thread
- interior pipe
- outer tube
- 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.)
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- Earth Drilling (AREA)
Abstract
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100115556A CN100526597C (zh) | 2007-06-05 | 2007-06-05 | 一种充气钻井密封装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100115556A CN100526597C (zh) | 2007-06-05 | 2007-06-05 | 一种充气钻井密封装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101067366A true CN101067366A (zh) | 2007-11-07 |
CN100526597C CN100526597C (zh) | 2009-08-12 |
Family
ID=38880040
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2007100115556A Expired - Fee Related CN100526597C (zh) | 2007-06-05 | 2007-06-05 | 一种充气钻井密封装置 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100526597C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107503709A (zh) * | 2017-07-07 | 2017-12-22 | 中石化石油工程技术服务有限公司 | 一种薄隔层调整井的固井装置 |
-
2007
- 2007-06-05 CN CNB2007100115556A patent/CN100526597C/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107503709A (zh) * | 2017-07-07 | 2017-12-22 | 中石化石油工程技术服务有限公司 | 一种薄隔层调整井的固井装置 |
CN107503709B (zh) * | 2017-07-07 | 2023-04-28 | 中石化石油工程技术服务有限公司 | 一种薄隔层调整井的固井装置 |
Also Published As
Publication number | Publication date |
---|---|
CN100526597C (zh) | 2009-08-12 |
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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 | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd. Assignor: Liaohe Petroleum Exploration Bureau Contract fulfillment period: 2008.10.17 to 2015.10.16 contract change Contract record no.: 2009990001234 Denomination of invention: Air-filling well-drilling sealing device Granted publication date: 20090812 License type: Exclusive license Record date: 2009.11.9 |
|
LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.10.17 TO 2015.10.16; CHANGE OF CONTRACT Name of requester: CHINA PETROLEUM GROUP GREAT WALL DRILLING ENGINEER Effective date: 20091109 |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20100605 |