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发明名称
A DOWNHOLE ASSEMBLY
摘要
A downhole assembly for insertion into a borehole comprising an articulated mandrel, a passive and an active damping mechanism operating on said mandrel.
申请公布号
WO2009030925(A2)
申请公布日期
2009.03.12
申请号
WO2008GB03014
申请日期
2008.09.04
申请人
MCLOUGHLIN, STEPHEN, JOHN;SWIETLIK, GEORGE
发明人
MCLOUGHLIN, STEPHEN, JOHN;SWIETLIK, GEORGE
分类号
E21B17/07;E21B17/10
主分类号
E21B17/07
代理机构
代理人
主权项
地址
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