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发明名称
INTELLIGENT EFFICIENT SERVO-ACTUATOR FOR A DOWNHOLE PULSER
摘要
申请公布号
CA2573524(A1)
申请公布日期
2005.10.06
申请号
CA20042573524
申请日期
2004.04.06
申请人
NEWSCO DIRECTIONAL AND HORIZONTAL DRILLING SERVICES INC.
发明人
PRATT, DALE F.;LAMBE, KENNETH A.;SCHMIDT, AXEL M.
分类号
E21B47/18;E21B47/06
主分类号
E21B47/18
代理机构
代理人
主权项
地址
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