ADDITIVE TO REDUCE POLYMER SOLIDS DEPOSITION AT PUMP HEAD

Abstract: a drag-reducing formulation includes a polymer composition and a biodegradable fatty acid ester. in certain embodiments, the polymer composition includes at least one latex polymer. the biodegradable fatty acid ester has a structure of rc(═o)or, where ris a c-calkyl or alkenyl group having between zero to three c═c double bonds and ris a c-calkyl or alkenyl group. in another aspect, a method of using a drag-reducing formulation involves the steps of deriving a biodegradable fatty acid from a renewable source and mixing the biodegradable fatty acid ester with a polymer composition having at least one latex polymer to obtain the drag-reducing formulation. the method further involves introducing the drag-reducing formulation at an injection point.

Inventor(s): Jianzhong Yang, William Woode

CPC Classification: C09K8/588 (Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids)

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