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发明名称
Downhole tool and method
摘要
申请公布号
GB2330606(A)
申请公布日期
1999.04.28
申请号
GB19980027067
申请日期
1997.07.11
申请人
* SCHLUMBERGER LIMITED
发明人
MICHAEL PAUL * BARRETT;STUART INGLIS * JARDINE;MICHAEL CHARLES * SHEPPARD
分类号
E21B17/02;E21B23/00;E21B44/00;(IPC1-7):E21B23/00
主分类号
E21B17/02
代理机构
代理人
主权项
地址
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