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发明名称
WELLBORE FLUID
摘要
申请公布号
EP0667890(B1)
申请公布日期
1999.09.15
申请号
EP19940924940
申请日期
1994.08.30
申请人
SOFITECH N.V.;COMPAGNIE DES SERVICES DOWELL SCHLUMBERGER S.A.
发明人
SAWDON, CHRISTOPHER, ALAN
分类号
C09K8/34;(IPC1-7):C09K7/06
主分类号
C09K8/34
代理机构
代理人
主权项
地址
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