发明名称 |
Overriding a Primary Control Subsystem Of A Downhole Tool |
摘要 |
A system that is usable with a well may include a piston, a primary control subsystem and an override subsystem. The piston actuates the downhole tool, and the primary control subsystem may be connected to at least one hydraulic line in order to move the piston in response to pressure that is communicated to the tool via the hydraulic line(s). The override subsystem may be connected to the hydraulic line(s) to override the primary control subsystem and move the piston in response to pressure communicated to the tool via the hydraulic line(s). |
申请公布号 |
US2011284241(A1) |
申请公布日期 |
2011.11.24 |
申请号 |
US201113089617 |
申请日期 |
2011.04.19 |
申请人 |
MANDROU LAURE;RIOUFOL EMMANUEL;SALEH AHMED;PROST JEROME;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
MANDROU LAURE;RIOUFOL EMMANUEL;SALEH AHMED;PROST JEROME |
分类号 |
E21B34/10 |
主分类号 |
E21B34/10 |
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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