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发明名称
SUB-SURFACE RELEASE FOR PLUG ASSEMBLY
摘要
申请公布号
EP0306306(B1)
申请公布日期
1991.12.04
申请号
EP19880308096
申请日期
1988.09.01
申请人
HALLIBURTON COMPANY
发明人
BRADLEY, BILLIE JACK
分类号
E21B33/05;E21B33/076;E21B33/16
主分类号
E21B33/05
代理机构
代理人
主权项
地址
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