CN1523201A - 抽油机井口耐磨耐腐蚀装置 - Google Patents
抽油机井口耐磨耐腐蚀装置 Download PDFInfo
- Publication number
- CN1523201A CN1523201A CNA03104543XA CN03104543A CN1523201A CN 1523201 A CN1523201 A CN 1523201A CN A03104543X A CNA03104543X A CN A03104543XA CN 03104543 A CN03104543 A CN 03104543A CN 1523201 A CN1523201 A CN 1523201A
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- CN
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- Prior art keywords
- casing pipe
- packing
- sealed casing
- well head
- oil pumper
- 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)
- Sealing Devices (AREA)
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03104543 CN1253647C (zh) | 2003-02-18 | 2003-02-18 | 抽油机井口耐磨耐腐蚀装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 03104543 CN1253647C (zh) | 2003-02-18 | 2003-02-18 | 抽油机井口耐磨耐腐蚀装置 |
Publications (2)
Publication Number | Publication Date |
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CN1523201A true CN1523201A (zh) | 2004-08-25 |
CN1253647C CN1253647C (zh) | 2006-04-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 03104543 Expired - Fee Related CN1253647C (zh) | 2003-02-18 | 2003-02-18 | 抽油机井口耐磨耐腐蚀装置 |
Country Status (1)
Country | Link |
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CN (1) | CN1253647C (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101666218B (zh) * | 2008-09-01 | 2012-10-03 | 黑龙江科技学院 | 油田井口双密封盘根盒及井口双密封的方法 |
CN101328787B (zh) * | 2007-06-18 | 2013-06-19 | 大庆油田有限责任公司 | 抽油机井弹性动密封井口密封装置 |
CN104374559A (zh) * | 2014-11-14 | 2015-02-25 | 中国石油天然气股份有限公司 | 一种井下工具动态性能实验检测装置 |
-
2003
- 2003-02-18 CN CN 03104543 patent/CN1253647C/zh not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101328787B (zh) * | 2007-06-18 | 2013-06-19 | 大庆油田有限责任公司 | 抽油机井弹性动密封井口密封装置 |
CN101666218B (zh) * | 2008-09-01 | 2012-10-03 | 黑龙江科技学院 | 油田井口双密封盘根盒及井口双密封的方法 |
CN104374559A (zh) * | 2014-11-14 | 2015-02-25 | 中国石油天然气股份有限公司 | 一种井下工具动态性能实验检测装置 |
CN104374559B (zh) * | 2014-11-14 | 2017-04-05 | 中国石油天然气股份有限公司 | 一种井下工具动态性能实验检测装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1253647C (zh) | 2006-04-26 |
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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: 20060426 Termination date: 20130218 |
|
C35 | Partial or whole invalidation of patent or utility model | ||
IP01 | Partial invalidation of patent right |
Commission number: 4W100751 Conclusion of examination: Announcement No. 03104543.X patent claim 1, 4-7 and 3 rights cited in claim 1 of the technical scheme is invalid in claim 2, and 3 in the right reference claim is based on the 2 continue to maintain the patent requirements. Decision date of declaring invalidation: 20110817 Decision number of declaring invalidation: 17079 Denomination of invention: Well pumping unit pit-top abrasion-proof, corrosion-resisting apparatus Granted publication date: 20060426 Patentee: Yu Haiyan |