| 发明名称 |
Piloting actuator valve for subterranean flow control |
| 摘要 |
<p>The present invention provides for a pilot valve used in a well and in which the state of the pilot valve is controlled by an actuator.</p> |
| 申请公布号 |
GB0516924(D0) |
申请公布日期 |
2005.09.28 |
| 申请号 |
GB20050016924 |
申请日期 |
2005.08.18 |
| 申请人 |
SCHLUMBERGER HOLDINGS LIMITED |
发明人 |
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| 分类号 |
F16K31/42;H01F7/16 |
主分类号 |
F16K31/42 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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