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发明名称
METHOD AND APPARATUS FOR GRAVEL PACKING WELLS
摘要
申请公布号
GB1519575(A)
申请公布日期
1978.08.02
申请号
GB19770006477
申请日期
1977.02.16
申请人
EXXON PRODUCTION RESEARCH CO
发明人
分类号
E21B43/04;E21B43/08;(IPC1-7):E21B43/04
主分类号
E21B43/04
代理机构
代理人
主权项
地址
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