Method of reducing the viscosity of hydrocarbons
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United States of America Patent
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Apr 19, 2016
Grant Date -
Apr 21, 2011
app pub date -
Oct 20, 2009
filing date -
Oct 20, 2009
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Abstract
Methods of treating hydrocarbon fluids to reduce the apparent viscosity of hydrocarbon fluids encountered in petroleum operations and reducing deposits within a well annulus or a pipeline are disclosed. The method comprises contacting such fluids with a hydrophobically modified polysaccharide to create water external emulsions. The disclosed hydrophobically modified polysaccharides have been demonstrated to reduce interfacial tension to below 65 mN/m and thereby improve the transportability of inherently viscous hydrocarbon fluids, such as heavy crude oils.
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