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发明名称
Gravel pack
摘要
申请公布号
GB2257187(B)
申请公布日期
1994.09.07
申请号
GB19920014992
申请日期
1992.07.14
申请人
* OTIS ENGINEERING CORPORATION;* HALLIBURTON COMPANY
发明人
RALPH H * ECHOLS;JOSEPH L. * PEARCE;DANIEL L * PATTERSON
分类号
E21B34/00;E21B34/06;E21B43/04;(IPC1-7):E21B43/04
主分类号
E21B34/00
代理机构
代理人
主权项
地址
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