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发明名称
METHOD OF DIRECTIONAL DRILLING WITH STEERABLE DRILLING MOTOR
摘要
申请公布号
GB2455463(A)
申请公布日期
2009.06.17
申请号
GB20090005181
申请日期
2009.03.26
申请人
SMITH INTERNATIONAL INC
发明人
MARC HACI
分类号
E21B44/02;E21B7/06;E21B44/00
主分类号
E21B44/02
代理机构
代理人
主权项
地址
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