Isobaric groundwater well

Details Isobaric groundwater well Isobaric groundwater well

1998-04-30

1999-10-19

Williams, Hezron

Measuring and testing

Borehole or drilling

Pressure measurement

7315255, 73 76, 16625003, 166264, E21B 4700, E21B 4300, G01N 710

Patent

active

059692421

ABSTRACT:
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.

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