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US 9,034,800 B2Granted
Fluid loss additives and methods of making and using same
AssigneeChevron Phillips Chemical Company LP
InventorsJeffery R. Harris, Frank E. Evans
Life of this patent
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Abstract
A non-aqueous wellbore servicing fluid comprising a fluid loss additive wherein the fluid loss additive comprises the reaction product of (i) a functional polymer and (ii) an oligomerized fatty acid. 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 and (ii) an oligomerized fatty acid.
Claims20
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.
A method comprising:
- preparing a nonaqueous wellbore servicing fluid comprising an inverse emulsion and 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.
Dependencies are inferred from the claim text.