发明名称 Method of and arrangement for determining geohydraulic permeability of ground regions through which ground water flows
摘要 A measurement of geohydraulic permeability of ground regions is performed by producing a negative pressure in a well shaft and a measuring of the resulting raise or lowering of the ground water level in the well shaft without pumping out of ground water from the shaft.
申请公布号 US5345820(A) 申请公布日期 1994.09.13
申请号 US19930029823 申请日期 1993.03.11
申请人 IEG INDUSTRIE-ENGINEERING GMBH 发明人 BERNHARDT, BRUNO
分类号 E21B49/00;G01N33/24;(IPC1-7):E21B47/00 主分类号 E21B49/00
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