Viscosity control and filtration of well fluids
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United States of America Patent
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Jun 19, 2007
Grant Date -
Sep 22, 2005
app pub date -
Mar 14, 2005
filing date -
Mar 15, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Circulating completion and workover fluids used in hydrocarbon recovery are filtered after monitoring for viscosity, which frequently causes plugging of filters. A viscometer generates a signal representative of viscosity in the fluid; the signal is used by a programmable controller to divert viscous fluid from the filter, or to take other action to prevent damage to the filter. The viscometer can be used in various positions in the system.
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