Thinners for invert emulsions
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United States of America Patent
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Oct 14, 2008
Grant Date -
Apr 6, 2006
app pub date -
Dec 29, 2000
filing date -
Dec 29, 2000
priority date (Note) -
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Abstract
A method of reducing the viscosity of oil-based drilling fluids and well service fluids at low temperatures and a thinner compound for use in such drilling fluids and well service fluids is disclosed. The method comprises adding to said drilling fluids or well service fluids a thinner having the formula: R--(C.sub.2H.sub.4O).sub.n(C.sub.3H.sub.6O).sub.m(C.sub.4H.sub.8O).sub.k--H where R is a saturated or unsaturated, linear or branched alkyl radical having about 8 to about 24 carbon atoms, n is a number ranging from about 1 to about 10, m is a number ranging form about 0 to about 10, and k is a number ranging from about 0 to about 10.
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