CN103046897B - 一种控压钻井自动调节节流阀的阀针 - Google Patents
一种控压钻井自动调节节流阀的阀针 Download PDFInfo
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- CN103046897B CN103046897B CN201210557844.7A CN201210557844A CN103046897B CN 103046897 B CN103046897 B CN 103046897B CN 201210557844 A CN201210557844 A CN 201210557844A CN 103046897 B CN103046897 B CN 103046897B
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- valve
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CN201210557844.7A CN103046897B (zh) | 2012-12-20 | 2012-12-20 | 一种控压钻井自动调节节流阀的阀针 |
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CN201210557844.7A CN103046897B (zh) | 2012-12-20 | 2012-12-20 | 一种控压钻井自动调节节流阀的阀针 |
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CN103046897A CN103046897A (zh) | 2013-04-17 |
CN103046897B true CN103046897B (zh) | 2015-06-03 |
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CN201210557844.7A Expired - Fee Related CN103046897B (zh) | 2012-12-20 | 2012-12-20 | 一种控压钻井自动调节节流阀的阀针 |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103759028B (zh) * | 2014-01-22 | 2016-01-20 | 西南石油大学 | 一种流量系数随开度线性变化的控压钻井节流阀筒形阀针 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB325001A (en) * | 1928-11-09 | 1930-02-10 | William Dopp Shaffer | Valves for controlling flow of fluid |
CN101566239A (zh) * | 2009-05-22 | 2009-10-28 | 苏州新锐硬质合金有限公司 | 针式节流阀的阀针 |
CN201412533Y (zh) * | 2009-06-19 | 2010-02-24 | 林文华 | 高压差、微调调节阀 |
CN202144872U (zh) * | 2011-07-25 | 2012-02-15 | 浙江凯瑞特阀业有限公司 | 一种全平衡式节流截止阀 |
CN202510731U (zh) * | 2012-03-19 | 2012-10-31 | 江苏亿德隆石油机械有限公司 | 一种液动楔形节流阀 |
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2012
- 2012-12-20 CN CN201210557844.7A patent/CN103046897B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB325001A (en) * | 1928-11-09 | 1930-02-10 | William Dopp Shaffer | Valves for controlling flow of fluid |
CN101566239A (zh) * | 2009-05-22 | 2009-10-28 | 苏州新锐硬质合金有限公司 | 针式节流阀的阀针 |
CN201412533Y (zh) * | 2009-06-19 | 2010-02-24 | 林文华 | 高压差、微调调节阀 |
CN202144872U (zh) * | 2011-07-25 | 2012-02-15 | 浙江凯瑞特阀业有限公司 | 一种全平衡式节流截止阀 |
CN202510731U (zh) * | 2012-03-19 | 2012-10-31 | 江苏亿德隆石油机械有限公司 | 一种液动楔形节流阀 |
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CN103046897A (zh) | 2013-04-17 |
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C06 | Publication | ||
PB01 | Publication | ||
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SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Wang Guorong Inventor after: Fu Yukun Inventor after: Liu Qingyou Inventor after: Tao Siyu Inventor after: Zhu Hao Inventor after: Wang Guo Inventor after: Fan Hongkang Inventor before: Wang Guorong Inventor before: Fu Yukun Inventor before: Liu Qingyou Inventor before: Tao Siyu Inventor before: Zhu Hao |
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COR | Change of bibliographic data | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161220 |
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CF01 | Termination of patent right due to non-payment of annual fee |