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发明名称
METHOD OF TRANSMITTING INFORMATION ALONG DRILL STRING IN BOREHOLE
摘要
申请公布号
SU812914(A1)
申请公布日期
1981.03.15
申请号
SU19772465237
申请日期
1977.03.14
申请人
VNII BUROVOJ TEKHNIKI;VNII YADERNOJ GEOFIZIKI GEOKHIMII
发明人
RUKAVITSYN VLADIMIR N,SU;KUZNETSOV OLEG L,SU;YASASHIN ANATOLIJ M,SU;GRIGORYAN ALEKSANDR M,SU;YAGODOV GENRIKH N,SU
分类号
E21B47/16;E21B47/12;(IPC1-7):E21B47/12
主分类号
E21B47/16
代理机构
代理人
主权项
地址
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