Filter for subterranean wells

Details Filter for subterranean wells Filter for subterranean wells

1994-12-07

1997-09-09

Dang, Hoang C.

Wells

Processes

Producing the well

166228, 166236, 210499, 2105101, E21B 4308

Patent

active

056646283

ABSTRACT:
A damage-resistant filter for use in subterranean wells has at least one layer of a filter medium, such as a sintered supported porous membrane, coaxially disposed about a perforated support member. The filter may also include a drainage layer disposed between the inner support member and the filter medium, and a protective covering, such as a perforated cage, surrounding the filter medium. The filter is particularly suitable for removal of sand and other particulates from fluids produced in a well.

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