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发明名称
WELL CONTROL APPARATUS
摘要
申请公布号
CA2053245(A1)
申请公布日期
1990.10.29
申请号
CA19902053245
申请日期
1990.04.20
申请人
EXPLORATION AND PRODUCTION SERVICES (NORTH SEA) LTD.
发明人
EDWARDS, JEFFREY C.;JOHNS, RAY;BUCHANAN, ROBERT D.
分类号
E21B;E21B34/06;E21B34/10;E21B49/08;(IPC1-7):E21B34/10
主分类号
E21B
代理机构
代理人
主权项
地址
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