Filter for subterranean use
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United States of America Patent
Stats
-
Nov 30, 1999
Grant Date -
N/A
app pub date -
May 8, 1997
filing date -
May 9, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
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.
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