Well screen
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United States of America Patent
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Sep 15, 2009
Grant Date -
Jun 29, 2006
app pub date -
Jun 16, 2004
filing date -
Jun 17, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A well screen (10) is proposed having an outer standoff layer (14) between the protective screen (15) and the filter medium (13). A method of making the well screen (10) is also proposed, comprising a step of pulling an open-ended cylinder of filter medium (13) over underlying layers (12) in the well screen (10). Furthermore, a method is proposed using series resistance welding for sealing seams in the layers making up the well screen (10).
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