Well construction

Details Well construction Well construction

1976-08-05

1978-01-31

Purser, Ernest R.

Wells

Processes

Graveling or filter forming

166245, E21B 4304

Patent

active

040710874

ABSTRACT:
In a method of constructing a filter well by forming a cavity, such as a bore, in the ground down to the level of the liquid-bearing zone of the strata and filling said cavity with a filtering medium such as filter gravel, the cavities are disposed so as to intersect along their length such that each cavity is in communication with at least one other cavity. In a preferred method, the cavity is formed and provided with a liner, and the liner is withdrawn as the filter medium is installed. Preferred arrangements of the cavities include single lines, intersecting lines, closed figures and especially circles occupied entirely by cavities, and lines radial to a central cavity.

REFERENCES:
patent: 1748589 (1930-02-01), Thorpe
patent: 2025317 (1935-12-01), Thorpe
patent: 2076489 (1937-04-01), Williams
patent: 2076490 (1937-04-01), Williams
patent: 2434239 (1948-01-01), Zublin
patent: 3007522 (1961-11-01), Clausse

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