发明名称 |
DOWNHOLE TOOL HAVING RADIALLY EXTENDABLE MEMBERS |
摘要 |
<p>A downhole tool (10) comprises a body (14), radially extendable members (16) mounted to the body and movable between retracted and extended positions, a cam member (32) operatively associated with the extendable members and movable relative to the body to extend the extendable members, and a support member (30) configurable to permit retraction of the extendable members (16) from an extended position. The tool may be an under-reamer, and the extendable members may be cutting blades (16).</p> |
申请公布号 |
WO2004097163(A1) |
申请公布日期 |
2004.11.11 |
申请号 |
WO2004GB01758 |
申请日期 |
2004.04.26 |
申请人 |
ANDERGAUGE LIMITED;EDDISON, ALAN, MARTYN;ADAM, MARK |
发明人 |
EDDISON, ALAN, MARTYN;ADAM, MARK |
分类号 |
E21B10/32;(IPC1-7):E21B10/32 |
主分类号 |
E21B10/32 |
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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