发明名称 |
WELLBORE FLOW CONTROL DEVICE |
摘要 |
<p>A device for regulating fluid flow in a well is provided. The device may include: a body member having a central bore extending therethrough, at least one flow port and a first valve seat a sleeve member movably disposed within the central bore of the body member, and having a second valve seat adapted for cooperable sealing engagement with the first valve seat; means for selectively controlling movement of the sleeve member to regulate fluid flow through the at least one flow port; and conduit means for transmitting energy to the movement means. The conduit means may include a first and a second hydraulic control line, a single hydraulic control line, or a singl e electrical conductor. The movement means may include: a piston connected to the sleeve member and movable in response to a combination of hydraulic fluid, pressurized gas, spring force, and/or annulus pressure; or an electri c motor connected to the sleeve member.</p> |
申请公布号 |
CA2349391(C) |
申请公布日期 |
2007.04.10 |
申请号 |
CA19992349391 |
申请日期 |
1999.11.12 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
MILLIGAN, CLAY W., JR.;PRINGLE, RONALD E.;LEISMER, DWAYNE D. |
分类号 |
E21B21/10;E21B17/02;E21B23/02;E21B23/03;E21B23/12;E21B34/08;E21B34/10;E21B43/12;E21B43/14;E21B43/30 |
主分类号 |
E21B21/10 |
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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