发明名称 |
SYSTEM FOR CONTROLLING FLOW OF AN ACTUATING FLUID |
摘要 |
A technique utilizes a simplified valve system structure to facilitate actuation of tools, such as actuating pads in a steering section of a wellbore drilling assembly. A valve system may comprise a bi-stable actuator which controls two double-stage valves. Each of the double-stage valves is able to perform both charging and dumping functions which facilitate use of the valve system in a variety of downhole applications. In drilling applications, a single valve system is able to operate a plurality of actuating pads.
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申请公布号 |
US2012067592(A1) |
申请公布日期 |
2012.03.22 |
申请号 |
US20100887217 |
申请日期 |
2010.09.21 |
申请人 |
NIINA NOBUYOSHI;POLYNTSEV OLEG |
发明人 |
NIINA NOBUYOSHI;POLYNTSEV OLEG |
分类号 |
E21B34/06 |
主分类号 |
E21B34/06 |
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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