CN202900077U - 一种无磁钻铤 - Google Patents
一种无磁钻铤 Download PDFInfo
- Publication number
- CN202900077U CN202900077U CN 201220558715 CN201220558715U CN202900077U CN 202900077 U CN202900077 U CN 202900077U CN 201220558715 CN201220558715 CN 201220558715 CN 201220558715 U CN201220558715 U CN 201220558715U CN 202900077 U CN202900077 U CN 202900077U
- Authority
- CN
- China
- Prior art keywords
- drill collar
- magnetic drill
- alloy
- wear
- non magnetic
- 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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Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220558715 CN202900077U (zh) | 2012-10-29 | 2012-10-29 | 一种无磁钻铤 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220558715 CN202900077U (zh) | 2012-10-29 | 2012-10-29 | 一种无磁钻铤 |
Publications (1)
Publication Number | Publication Date |
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CN202900077U true CN202900077U (zh) | 2013-04-24 |
Family
ID=48120760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 201220558715 Expired - Lifetime CN202900077U (zh) | 2012-10-29 | 2012-10-29 | 一种无磁钻铤 |
Country Status (1)
Country | Link |
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CN (1) | CN202900077U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105089519A (zh) * | 2015-09-07 | 2015-11-25 | 山西风雷钻具有限公司 | 一种具有耐磨带的无磁钻铤 |
-
2012
- 2012-10-29 CN CN 201220558715 patent/CN202900077U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105089519A (zh) * | 2015-09-07 | 2015-11-25 | 山西风雷钻具有限公司 | 一种具有耐磨带的无磁钻铤 |
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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: 20150930 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: SINOPEC OILFIELD SERVICE Corp. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC HENAN PETROLEUM EXPLORATION BUREAU, DRILLING ENGINEERING Co.,Ltd. |
|
CX01 | Expiry of patent term |
Granted publication date: 20130424 |
|
CX01 | Expiry of patent term |