Sand control screen having increased erosion and collapse resistance
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United States of America Patent
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-
Nov 3, 1998
Grant Date -
N/A
app pub date -
Jul 18, 1996
filing date -
Jul 18, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A screen provides increased erosion resistance and collapse resistance without uneconomical overcompensation and without requiring an increase in the screen's outer diameter. In a preferred embodiment, a sand control screen has a support material radially between a tubular base pipe and a filtering portion. The support material radially outwardly supports the filtering portion to help prevent radially inward collapse of the filtering portion. In another preferred embodiment, a screen has a coating applied to a filtering portion's exterior surface. The coating may alternatively or combinatively provide erosion resistance, radially inwardly retain a support material, and selectively vary flow through the filtering portion.
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