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经营范围
发明名称
Downhole packing assembly
摘要
申请公布号
EP0743422(B1)
申请公布日期
2001.11.28
申请号
EP19960303392
申请日期
1996.05.14
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
BRANCH, ALTON L.;SMITH, DONALD R.;BERSCHEIDT, KEVIN T.
分类号
E21B33/12;E21B33/129;(IPC1-7):E21B33/129
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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