Wells – Processes – Repairing object in well
Patent
1997-06-18
1999-06-08
Dang, Hoang C.
Wells
Processes
Repairing object in well
E21B 4310
Patent
active
059097736
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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Geibel Stephen A.
Hashemi Reza
Koehler Paul C.
Malbrel Christophe A.
Whitlock Michael B.
Dang Hoang C.
Pall Corporation
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