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发明名称
Forming a wellbore casing while simultaneously drilling a wellbore
摘要
申请公布号
GB2385622(B)
申请公布日期
2003.10.08
申请号
GB20030010104
申请日期
2000.03.06
申请人
* SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
ROBERT LANCE * COOK;DAVID PAUL * BRISCO;R BRUCE * STEWART;LEV * RING;RICHARD CARL * HAUT;ROBERT D * MACK;ALAN B * DUELL
分类号
E21B7/20;E21B33/14;E21B43/10;(IPC1-7):E21B7/20
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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