Method for treating a hydrocarbon-bearing formation with a fluid followed by a nonionic fluorinated polymeric surfactant
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Date
2013-03-26
Authors
Gary A. Pope
Mukul M. Sharma
Jimmie R. Baran, Jr.
Vishal Bang
Journal Title
Journal ISSN
Volume Title
Publisher
United States Patent and Trademark Office
Abstract
The present invention includes a method for treating a hydrocarbon-bearing clastic formation having brine. The method includes contacting the hydrocarbon-bearing clastic formation with a fluid, which at least one of at least partially solubilizes or at least partially displaces the brine in the hydrocarbon-bearing clastic formation, and subsequently contacting the hydrocarbon-bearing clastic formation with a composition. The composition includes a nonionic fluorinated polymeric surfactant and solvent. When the composition is contacting the hydrocarbon-bearing clastic formation, the nonionic fluorinated polymeric surfactant has a cloud point that is above the temperature of the hydrocarbon-bearing clastic formation.