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发明名称
REVERSE CIRCULATION DIRECTIONAL AND HORIZONTAL DRILLING USING CONCENTRIC COIL TUBING
摘要
申请公布号
AU2003260210(A1)
申请公布日期
2004.03.11
申请号
AU20030260210
申请日期
2003.08.21
申请人
PRESSSOL LTD.
发明人
JAMES, I. LIVINGSTONE
分类号
E21B7/04;E21B17/18;E21B17/20;E21B21/12;(IPC1-7):E21B17/20
主分类号
E21B7/04
代理机构
代理人
主权项
地址
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