Method and apparatus for mixing fluid flow in a wellbore using a static mixer
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United States of America Patent
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Aug 19, 2014
Grant Date -
Apr 17, 2014
app pub date -
Oct 11, 2012
filing date -
Oct 11, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Methods and apparatus are presented for mixing fluid flowing through a wellbore extending through a subterranean formation. A static mixer assembly is positioned in a tubing string, the mixer having a plurality of vanes extending radially into an interior fluid flow passageway. Downhole tools are movable through a tool passageway defined in the static mixer assembly. The tools can pass unobstructed by the fixed vanes. Alternately, the tool can flex the elastic vanes as it passes through, the vanes returning to position after passage of the tool. The vanes are preferably circumferentially spaced and longitudinally spaced. The vanes can extend from an interior wall surface of the assembly or from a sleeve inserted into the mixer assembly.
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