CN201347722Y - 预破应力pdc钻头 - Google Patents
预破应力pdc钻头 Download PDFInfo
- Publication number
- CN201347722Y CN201347722Y CNU2009201056600U CN200920105660U CN201347722Y CN 201347722 Y CN201347722 Y CN 201347722Y CN U2009201056600 U CNU2009201056600 U CN U2009201056600U CN 200920105660 U CN200920105660 U CN 200920105660U CN 201347722 Y CN201347722 Y CN 201347722Y
- Authority
- CN
- China
- Prior art keywords
- drill bit
- pdc
- teeth
- cutting teeth
- pdc drill
- 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 - Fee Related
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Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2009201056600U CN201347722Y (zh) | 2009-02-06 | 2009-02-06 | 预破应力pdc钻头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2009201056600U CN201347722Y (zh) | 2009-02-06 | 2009-02-06 | 预破应力pdc钻头 |
Publications (1)
Publication Number | Publication Date |
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CN201347722Y true CN201347722Y (zh) | 2009-11-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2009201056600U Expired - Fee Related CN201347722Y (zh) | 2009-02-06 | 2009-02-06 | 预破应力pdc钻头 |
Country Status (1)
Country | Link |
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CN (1) | CN201347722Y (zh) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102134850A (zh) * | 2011-01-08 | 2011-07-27 | 洪子云 | 金钢钻吸土成孔钻头 |
CN102409980A (zh) * | 2011-12-22 | 2012-04-11 | 河南神龙石油钻具有限公司 | 一种刀翼式pdc钻头 |
CN106545299A (zh) * | 2015-09-18 | 2017-03-29 | 成都百施特金刚石钻头有限公司 | 一种新型混合齿pdc钻头 |
-
2009
- 2009-02-06 CN CNU2009201056600U patent/CN201347722Y/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102134850A (zh) * | 2011-01-08 | 2011-07-27 | 洪子云 | 金钢钻吸土成孔钻头 |
CN102409980A (zh) * | 2011-12-22 | 2012-04-11 | 河南神龙石油钻具有限公司 | 一种刀翼式pdc钻头 |
CN106545299A (zh) * | 2015-09-18 | 2017-03-29 | 成都百施特金刚石钻头有限公司 | 一种新型混合齿pdc钻头 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: DAGANG OILFIELD GROUP, ZHONGCHENG MACHINERY MANUFACTURING CO., LTD. Effective date: 20100903 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20100903 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee before: Dagang Oilfield Group, Zhongcheng Machinery Manufacturing Co., Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20160206 |
|
CF01 | Termination of patent right due to non-payment of annual fee |