Linear electric motor for artificial lift system
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United States of America Patent
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Feb 16, 2016
Grant Date -
Jul 25, 2013
app pub date -
Mar 8, 2013
filing date -
May 23, 2011
priority date (Note) -
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Abstract
A method for pumping production fluid from a wellbore includes deploying a downhole assembly of an artificial lift system (ALS) into the wellbore. The downhole assembly includes a linear electric motor (LEM) and a pump. The method further includes operating the LEM, thereby reciprocating the pump and lifting production fluid from the wellbore to surface. The LEM includes a stator and a reciprocating head having permanent magnets. The production fluid leaks through an interface formed between the head and the stator.
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