发明名称 Isobaric groundwater well
摘要 A method of measuring a parameter in a well, under isobaric conditions, including such parameters as hydraulic gradient, pressure, water level, soil moisture content and/or aquifer properties the method as presented comprising providing a casing having first and second opposite ends, and a length between the ends, the casing supporting a transducer having a reference port; placing the casing lengthwise into the well, second end first, with the reference port vented above the water table in the well; and sealing the first end. A system is presented for measuring a parameter in a well, the system comprising a casing having first and second opposite ends, and a length between the ends and being configured to be placed lengthwise into a well second end first; a transducer, the transducer having a reference port, the reference port being vented in the well above the water table, the casing being screened across and above the water table; and a sealing member sealing the first end. In one embodiment, the transducer is a tensiometer transducer and in other described embodiments, another type transducer is used in addition to a tensiometer.
申请公布号 US5969242(A) 申请公布日期 1999.10.19
申请号 US19980071070 申请日期 1998.04.30
申请人 LOCKHEED MARTIN IDAHO TECHNOLOGIES COMPANY 发明人 HUBBELL, JOEL M.;SISSON, JAMES B.
分类号 E21B47/04;E21B47/06;(IPC1-7):E21B47/00;E21B43/00;G01N7/10 主分类号 E21B47/04
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