发明授权
- 专利标题: Method and apparatus for multi-drop tool control
- 专利标题(中): 多点工具控制方法与装置
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申请号: US11851532申请日: 2007-09-07
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公开(公告)号: US07748461B2公开(公告)日: 2010-07-06
- 发明人: Ives D. Loretz , Alok Dwivedi , Darren Shove
- 申请人: Ives D. Loretz , Alok Dwivedi , Darren Shove
- 申请人地址: US TX Sugar Land
- 专利权人: Schlumberger Technology Corporation
- 当前专利权人: Schlumberger Technology Corporation
- 当前专利权人地址: US TX Sugar Land
- 代理机构: Van Someren, PC
- 代理商 Daryl R. Wright; Brandon S. Clark
- 主分类号: E21B34/00
- IPC分类号: E21B34/00
摘要:
A hydraulic actuator is connected between a downhole tool and a hydraulic control line for operating the downhole tool through an actuation sequence. The hydraulic actuator comprises a valve shuttle section having an inlet port in connection with the hydraulic control line, a first function port and a second function port. The hydraulic actuator also has a shuttle movable between positions providing fluid communication between the inlet port and the first function port and the inlet port and the second function port. Additionally, the hydraulic actuator has a pilot assembly in fluid connection with the hydraulic control line and in operational connection with the shuttle. The pilot assembly is movable in response to an actuation cycle comprising applying pressure from the hydraulic control line and bleeding the pressure off.
公开/授权文献
- US20090065218A1 DOWNHOLE HYDRAULIC VALVE SYSTEMS 公开/授权日:2009-03-12