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发明名称
RAPID CYCLE ANNULUS PRESSURE RESPONSIVE TESTER VALVE
摘要
申请公布号
SG67392(G)
申请公布日期
1992.09.04
申请号
SG19920000673
申请日期
1992.07.02
申请人
HALLIBURTON CO
发明人
分类号
E21B23/00;E21B34/00;E21B34/10;E21B49/00;(IPC1-7):E21B34/10
主分类号
E21B23/00
代理机构
代理人
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地址
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