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发明名称
Firing head for a perforating gun assembly
摘要
申请公布号
US4969525(A)
申请公布日期
1990.11.13
申请号
US19890402387
申请日期
1989.09.01
申请人
HALLIBURTON COMPANY
发明人
GEORGE, KEVIN R.;WESSON, DAVID S.;AVILA, JOHN E.
分类号
E21B43/11;E21B43/116;E21B43/1185;E21B43/263
主分类号
E21B43/11
代理机构
代理人
主权项
地址
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