CN203531756U - 一种定向钻井钢体pdc钻头 - Google Patents
一种定向钻井钢体pdc钻头 Download PDFInfo
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- CN203531756U CN203531756U CN201320421816.2U CN201320421816U CN203531756U CN 203531756 U CN203531756 U CN 203531756U CN 201320421816 U CN201320421816 U CN 201320421816U CN 203531756 U CN203531756 U CN 203531756U
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- drill bit
- steel body
- pdc drill
- body pdc
- wear
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Application Number | Priority Date | Filing Date | Title |
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CN201320421816.2U CN203531756U (zh) | 2013-07-16 | 2013-07-16 | 一种定向钻井钢体pdc钻头 |
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CN201320421816.2U CN203531756U (zh) | 2013-07-16 | 2013-07-16 | 一种定向钻井钢体pdc钻头 |
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CN203531756U true CN203531756U (zh) | 2014-04-09 |
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CN201320421816.2U Expired - Lifetime CN203531756U (zh) | 2013-07-16 | 2013-07-16 | 一种定向钻井钢体pdc钻头 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108487865A (zh) * | 2018-05-25 | 2018-09-04 | 中石化江钻石油机械有限公司 | 一种尖脊形切削齿 |
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2013
- 2013-07-16 CN CN201320421816.2U patent/CN203531756U/zh not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108487865A (zh) * | 2018-05-25 | 2018-09-04 | 中石化江钻石油机械有限公司 | 一种尖脊形切削齿 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: KINGDREAM PLC |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180309 Address after: 430223, No. 5, Chinese workers' garden, Temple Hill community, East Lake New Technology Development Zone, Wuhan, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Patentee after: KINGDREAM PLC Address before: 430223 Hubei city of Wuhan province science and Technology Park East Lake New Technology Development Zone, Road No. five Patentee before: SINOPEC OILFIELD EQUIPMENT Corp. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20140409 |