Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 14, 2008
Patent Application Number
10432787
Date Filed
December 29, 2000
Patent Primary Examiner
Patent 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—(C2H4O)n(C3H6O)m(C4H8O)k-Hwhere 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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