Method of adapting a downhole multi-phase twin screw pump for use in wells having a high gas content and a downhole multi-phase twin screw pump
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United States of America Patent
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Aug 22, 2006
Grant Date -
Jan 6, 2005
app pub date -
Mar 29, 2004
filing date -
Sep 28, 2001
priority date (Note) -
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Abstract
A method of adapting a downhole multi-phase twin screw pump (10) for use in wells having a high gas content. A first step involves positioning a supplementary liquid channel (22,122) in a housing (12) of the pump in fluid communication with a pumping screw near an intake end (14) of the pump. A second step involves feeding supplementary liquid through the supplementary liquid channel to the pumping screw, thereby enhancing a liquid seal around the pumping screw.
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