Filter for subterranean use

Details Filter for subterranean use Filter for subterranean use

1997-05-08

1999-11-30

Schoeppel, Roger

Wells

Screens

Stacked annular sections

166236, 210458, E03B 318

Patent

active

059925183

ABSTRACT:
A filter for subterranean environments includes an inner support member, a filter body containing a filter medium disposed around the inner support member, and at least one end connector connected to a lengthwise end of the filter body and sealed against the inner support member without being welded to the inner support member. The end connector may be restrained from movement relative to the inner support member in a lengthwise direction of the inner support member, without being welded to the inner support member, to resist axial forces acting on the filter during installation or operation in a well. Alternatively, the end connector may be capable of movement with respect to the inner support member in a lengthwise direction of the inner support member to enable the filter to undergo thermal expansion without damage to the filter body or other portions of the filter.

REFERENCES:
patent: 1341755 (1920-06-01), Minton
patent: 2364191 (1944-12-01), Campbell
patent: 3106526 (1963-10-01), Schmidt
patent: 3275081 (1966-09-01), Beylik
patent: 4167972 (1979-09-01), Sears
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patent: 4411788 (1983-10-01), Kimura
patent: 4483396 (1984-11-01), Kennelly
patent: 4778008 (1988-10-01), Gonzalez et al.
patent: 5333688 (1994-08-01), Jones et al.
patent: 5664628 (1997-09-01), Koehler et al.
patent: 5673752 (1997-10-01), Scudder et al.

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