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发明名称
LOCKING MECHANISM FOR LOCKING A WELL TOOL IN A WELL CONDUIT
摘要
申请公布号
EP0294264(B1)
申请公布日期
1991.10.09
申请号
EP19880401211
申请日期
1988.05.19
申请人
SCHLUMBERGER LIMITED;SOCIETE DE PROSPECTION ELECTRIQUE SCHLUMBERGER
发明人
AIREY, PETER;DOREMUS, BERNARD
分类号
E21B23/02
主分类号
E21B23/02
代理机构
代理人
主权项
地址
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