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发明名称
METHOD AND APPARATUS FOR CIRCULATING FLUID TO FORMATION IN WELL
摘要
申请公布号
GB2066325(B)
申请公布日期
1983.05.25
申请号
GB19800037194
申请日期
1980.11.20
申请人
HALLISBURTON CO
发明人
分类号
E21B33/124;E21B43/04;E21B43/14;(IPC1-7):E21B43/04
主分类号
E21B33/124
代理机构
代理人
主权项
地址
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