Patent ID: 9034800
Filing Date: 2015-05-19
Classification: C08G,C09K,E21B

Abstract:
1. A method of conducting an oil-field operation comprising: placing a non-aqueous wellbore servicing fluid downhole wherein the non-aqueous wellbore servicing fluid comprises a fluid loss additive comprising the reaction product of (i) a functional polymer comprising a maleic anhydride copolymer having a maleic anhydride content of from about 10% to about 90% and (ii) an oligomerized fatty acid wherein the non-aqueous wellbore servicing fluid has a high-temperature high-pressure, fluid loss at 300° F. that is reduced by greater than about 40% when compared to an otherwise similar non-aqueous wellbore servicing fluid lacking a fluid loss additive comprising the reaction product of (i) a functional polymer comprising a maleic anhydride copolymer having a maleic anhydride content of from about 10% to about 90% and (ii) an oligomerized fatty acid.