CN203214048U - 压差式钻具查漏装置 - Google Patents
压差式钻具查漏装置 Download PDFInfo
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- CN203214048U CN203214048U CN 201220616769 CN201220616769U CN203214048U CN 203214048 U CN203214048 U CN 203214048U CN 201220616769 CN201220616769 CN 201220616769 CN 201220616769 U CN201220616769 U CN 201220616769U CN 203214048 U CN203214048 U CN 203214048U
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- detection device
- ball seat
- leakage detection
- drilling tool
- drilling tools
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 201220616769 CN203214048U (zh) | 2011-12-06 | 2012-11-21 | 压差式钻具查漏装置 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201120502083.6 | 2011-12-06 | ||
CN201120502083 | 2011-12-06 | ||
CN 201220616769 CN203214048U (zh) | 2011-12-06 | 2012-11-21 | 压差式钻具查漏装置 |
Publications (1)
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CN203214048U true CN203214048U (zh) | 2013-09-25 |
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CN 201220616769 Expired - Fee Related CN203214048U (zh) | 2011-12-06 | 2012-11-21 | 压差式钻具查漏装置 |
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CN (1) | CN203214048U (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103510875A (zh) * | 2013-10-17 | 2014-01-15 | 无锡中地地质装备有限公司 | 钻具用连接管结构 |
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2012
- 2012-11-21 CN CN 201220616769 patent/CN203214048U/zh not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103510875A (zh) * | 2013-10-17 | 2014-01-15 | 无锡中地地质装备有限公司 | 钻具用连接管结构 |
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Legal Events
Date | Code | Title | Description |
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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: 20151023 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Yellow River Drilling Co., Ltd., SINOPEC Shengli Petroleum Administration Bureau |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20151121 |
|
EXPY | Termination of patent right or utility model |