CN201297133Y - 一种方钻杆 - Google Patents
一种方钻杆 Download PDFInfo
- Publication number
- CN201297133Y CN201297133Y CNU2008201236810U CN200820123681U CN201297133Y CN 201297133 Y CN201297133 Y CN 201297133Y CN U2008201236810 U CNU2008201236810 U CN U2008201236810U CN 200820123681 U CN200820123681 U CN 200820123681U CN 201297133 Y CN201297133 Y CN 201297133Y
- Authority
- CN
- China
- Prior art keywords
- kelly bar
- conical tube
- driving body
- drilling rod
- rod driving
- 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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- Earth Drilling (AREA)
Abstract
Description
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008201236810U CN201297133Y (zh) | 2008-11-18 | 2008-11-18 | 一种方钻杆 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2008201236810U CN201297133Y (zh) | 2008-11-18 | 2008-11-18 | 一种方钻杆 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201297133Y true CN201297133Y (zh) | 2009-08-26 |
Family
ID=41043110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2008201236810U Expired - Fee Related CN201297133Y (zh) | 2008-11-18 | 2008-11-18 | 一种方钻杆 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201297133Y (zh) |
-
2008
- 2008-11-18 CN CNU2008201236810U patent/CN201297133Y/zh not_active Expired - Fee Related
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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: TIANHE OIL GROUP HUIFENG PETROLEUM EUIPMENT CO., L Free format text: FORMER OWNER: TIANHE PETROLEUM MACHINERY CO., LTD. Effective date: 20110119 |
|
C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 157011 NO.42, XIDIMING STREET, MUDANJIANG CITY, HEILONGJIANG PROVINCE TO: 157100 NO.101, XINHUA NORTH COMMITTEE 1, HAILIN CITY, MUDANJIANG CITY, HEILONGJIANG PROVINCE |
|
TR01 | Transfer of patent right |
Effective date of registration: 20110119 Address after: 157100, No. 1, No. 101, North Xinhua, Hailin, Heilongjiang, Mudanjiang Patentee after: Tianhe Oil Group Huifeng Petroleum Euipment Co., Ltd. Address before: 157011 42 West Ming Street, Heilongjiang, Mudanjiang Patentee before: Tianhe Petroleum Machinery Co., Ltd. |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20121118 |