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发明名称
SELECTIVE FORMATION PLUGGING
摘要
申请公布号
US3439744(A)
申请公布日期
1969.04.22
申请号
USD3439744
申请日期
1967.06.23
申请人
SHELL OIL CO.
发明人
BRYANT W. BRADLEY
分类号
E21B33/10;(IPC1-7):E21B33/13;E21B43/16
主分类号
E21B33/10
代理机构
代理人
主权项
地址
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