发明名称 |
Self-anchoring device with force amplification |
摘要 |
A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable with respect to the gripper body and that has a geometry which is lockable by a locking device. The grip assembly also includes a force amplifier in force transmitting relation with the centralizer, wherein the force amplifier transfers a force in a first direction to a much larger force in a second direction when the centralizer is locked by the locking device.
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申请公布号 |
US7854258(B2) |
申请公布日期 |
2010.12.21 |
申请号 |
US20090396936 |
申请日期 |
2009.03.03 |
申请人 |
SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
SHEIRETOV TODOR K.;CHILCOAT DWIGHT C.;EWAN ROBIN A.;ROY CARL J;BILLINGHAM MATTHEW;AGUIRRE FRANZ |
分类号 |
E21B31/12;E21B31/00 |
主分类号 |
E21B31/12 |
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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