CN101812972A - 微取心pdc钻头 - Google Patents
微取心pdc钻头 Download PDFInfo
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- CN101812972A CN101812972A CN200910009190A CN200910009190A CN101812972A CN 101812972 A CN101812972 A CN 101812972A CN 200910009190 A CN200910009190 A CN 200910009190A CN 200910009190 A CN200910009190 A CN 200910009190A CN 101812972 A CN101812972 A CN 101812972A
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Abstract
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009100091902A CN101812972B (zh) | 2009-02-23 | 2009-02-23 | 微取心pdc钻头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009100091902A CN101812972B (zh) | 2009-02-23 | 2009-02-23 | 微取心pdc钻头 |
Publications (2)
Publication Number | Publication Date |
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CN101812972A true CN101812972A (zh) | 2010-08-25 |
CN101812972B CN101812972B (zh) | 2012-03-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2009100091902A Active CN101812972B (zh) | 2009-02-23 | 2009-02-23 | 微取心pdc钻头 |
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CN (1) | CN101812972B (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104251121A (zh) * | 2014-09-18 | 2014-12-31 | 武汉地大长江钻头有限公司 | 适用于石油勘探井可形成粗颗粒岩屑的pdc钻头 |
CN105804660A (zh) * | 2016-05-04 | 2016-07-27 | 沧州格锐特钻头有限公司 | 一种取心pdc钻头 |
CN111456642A (zh) * | 2019-01-18 | 2020-07-28 | 西南石油大学 | 一种微心复合钻头 |
-
2009
- 2009-02-23 CN CN2009100091902A patent/CN101812972B/zh active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104251121A (zh) * | 2014-09-18 | 2014-12-31 | 武汉地大长江钻头有限公司 | 适用于石油勘探井可形成粗颗粒岩屑的pdc钻头 |
CN105804660A (zh) * | 2016-05-04 | 2016-07-27 | 沧州格锐特钻头有限公司 | 一种取心pdc钻头 |
CN111456642A (zh) * | 2019-01-18 | 2020-07-28 | 西南石油大学 | 一种微心复合钻头 |
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Publication number | Publication date |
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CN101812972B (zh) | 2012-03-07 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CHINA PETROLEUM + CHEMICAL VICTORY OIL ENGINEERING Effective date: 20150906 Owner name: SINOPEC OILFIELD SERVICE CORPORATION Free format text: FORMER OWNER: WELL-DRILLING TECHNOLOGY INST., SHENGLI PETROLEUM ADMINISTRATION, SINOPEC Effective date: 20150906 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150906 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 257017 No. 236, North Road, Dongying District, Shandong, Dongying Patentee before: Well-Drilling Technology Inst., Shengli Petroleum Administration, SINOPEC |