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发明名称
Active bottomhole pressure control with liner drilling and compeltion systems
摘要
申请公布号
GB2474606(B)
申请公布日期
2011.06.15
申请号
GB20110001173
申请日期
2006.07.21
申请人
BAKER HUGHES INCORPORATED
发明人
SVEN KRUEGHER;GERALD HEISIG;DETLEF HAHN;VOLKER KRUEGER;PETER ARONSTAM;HARALD GRIMMER;ROGER FINCHER;LARRY WATKINS
分类号
E21B21/08;E21B21/00;E21B21/10
主分类号
E21B21/08
代理机构
代理人
主权项
地址
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