METHOD OF PREVENTING CRUMPING OF CASING IN PERMOFROST ROCKS,申请号SU19792861369-传众专利搜索

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发明名称	METHOD OF PREVENTING CRUMPING OF CASING IN PERMOFROST ROCKS
摘要
申请公布号	SU857445(A1)	申请公布日期	1981.08.23
申请号	SU19792861369	申请日期	1979.12.29
申请人	VNII PRIRODNYKH GAZOV	发明人	MALEVANSKIJ VLADIMIR D,SU;SMIRNOV VLADIMIR S,SU;STRYUKOV ANATOLIJ YA,SU;GLEBOVSKIJ ANATOLIJ M,SU;SHCHERBICH NIKOLAJ E,SU
分类号	E21B43/00;(IPC1-7):E21B43/00	主分类号	E21B43/00
代理机构		代理人
主权项
地址

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