CN1474031A - 防止杆状构件失控落井的保护装置及单向锁紧的方法 - Google Patents
防止杆状构件失控落井的保护装置及单向锁紧的方法 Download PDFInfo
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- CN1474031A CN1474031A CNA021260397A CN02126039A CN1474031A CN 1474031 A CN1474031 A CN 1474031A CN A021260397 A CNA021260397 A CN A021260397A CN 02126039 A CN02126039 A CN 02126039A CN 1474031 A CN1474031 A CN 1474031A
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB021260397A CN1261671C (zh) | 2002-08-09 | 2002-08-09 | 防止杆状构件失控落井的保护装置及单向锁紧的方法 |
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CNB021260397A CN1261671C (zh) | 2002-08-09 | 2002-08-09 | 防止杆状构件失控落井的保护装置及单向锁紧的方法 |
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CN1474031A true CN1474031A (zh) | 2004-02-11 |
CN1261671C CN1261671C (zh) | 2006-06-28 |
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CNB021260397A Expired - Fee Related CN1261671C (zh) | 2002-08-09 | 2002-08-09 | 防止杆状构件失控落井的保护装置及单向锁紧的方法 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108206486A (zh) * | 2017-11-27 | 2018-06-26 | 中国核工业第五建设有限公司 | 电缆防坠器 |
CN108442892A (zh) * | 2018-03-16 | 2018-08-24 | 中国石油集团渤海钻探工程有限公司 | 一种缆线与井下设备的连接装置 |
-
2002
- 2002-08-09 CN CNB021260397A patent/CN1261671C/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108206486A (zh) * | 2017-11-27 | 2018-06-26 | 中国核工业第五建设有限公司 | 电缆防坠器 |
CN108206486B (zh) * | 2017-11-27 | 2020-01-21 | 中国核工业第五建设有限公司 | 电缆防坠器 |
CN108442892A (zh) * | 2018-03-16 | 2018-08-24 | 中国石油集团渤海钻探工程有限公司 | 一种缆线与井下设备的连接装置 |
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Publication number | Publication date |
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CN1261671C (zh) | 2006-06-28 |
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Owner name: CHINA PETROLEUM GROUP DRILLING ENGINEERING TECHNO Free format text: FORMER OWNER: WELL DRILLING TECHN INST., CHINA PETROLEUM PROSPECTION DEVELOPMENT INST. Effective date: 20070727 |
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Effective date of registration: 20070727 Address after: 100083 No. 20, Beijing, Xueyuan Road Patentee after: Drilling Engineering Technology Research Institute, China National Petroleum Corp. Address before: 100083 No. 20, Beijing, Xueyuan Road Patentee before: Well Drilling Techn Inst., China Petroleum Prospection Development Inst. |
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Granted publication date: 20060628 Termination date: 20130809 |