Apparatus and process for drawing water from a water-bearing str

Details Apparatus and process for drawing water from a water-bearing str Apparatus and process for drawing water from a water-bearing str

1975-01-10

1977-03-29

Leppink, James A.

Wells

Valves, closures or changeable restrictors

166105, 166235, E03B 318, E21B 4308

Patent

active

040143872

ABSTRACT:
In order to draw water free of sand from a well bored into a water-bearing strata a cylindrical permeable body is located concentrically within the perforated wall of the well. The cylindrical body may in turn comprise concentric outer and inner slotted tubes with a permeable cylinder or a granulate therebetween. The lower end of the cylindrical body is closed and the upper end is connected to a pump.

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patent: 3357564 (1967-12-01), Medford, Jr. et al.
patent: 3425490 (1969-02-01), Clayton
patent: 3683056 (1972-08-01), Brandt et al.

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