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发明名称
ENCAPSULATED WATER ABSORBENT POLYMERS AS LOST CIRCULATION ADDITIVES FOR AQUEOUS DRILLING FLUIDS
摘要
申请公布号
CA1267075(C)
申请公布日期
1990.03.27
申请号
CA531982
申请日期
申请人
发明人
分类号
C09K8/04;C09K8/035;E21B43/22
主分类号
C09K8/04
代理机构
代理人
主权项
地址
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