发明名称 |
Hydraulically actuated valve |
摘要 |
The present invention provides a hydraulically actuated valve adapted for use in downhole well applications that enables control of several hydraulic devices from a single control line. In one embodiment, the valve has a valve body defining an inlet and first and second outlets. A spring-biased piston is located within the valve body. A pressure responsive indexer engages the piston to move the piston between a first and second position. In its first position, the piston prevents fluid flow from the inlet to the first outlet. In its second position, the piston prevents fluid flow from the inlet to the second outlet.
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申请公布号 |
US6523613(B2) |
申请公布日期 |
2003.02.25 |
申请号 |
US20010778361 |
申请日期 |
2001.02.07 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORP. |
发明人 |
RAYSSIGUIER CHRISTOPHE M.;VONGPHAKDY VONG |
分类号 |
E21B34/16;E21B23/04;E21B33/035;E21B33/12;E21B34/10;E21B41/00;E21B43/12;E21B44/00;F15B13/07;F15B21/08;(IPC1-7):E21B34/10 |
主分类号 |
E21B34/16 |
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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