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发明名称
METHOD FOR CONTROLLING DENSITY OF DRILLING FLUID
摘要
申请公布号
RU2001240(C1)
申请公布日期
1993.10.15
申请号
SU19915007665
申请日期
1991.07.02
申请人
TOMSKIJ NAUCHNO-ISSLEDOVATELSKIJ I PROEKTNYJ INSTITUT NEFTYANOJ I GAZOVOJ PROMYSHLENNOSTI
发明人
PRASS LEMBIT V;CHIRKIN ANATOLIJ D
分类号
E21B21/06;(IPC1-7):E21B21/06
主分类号
E21B21/06
代理机构
代理人
主权项
地址
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