VERFAHREN UND ZUSAMMENSETZUNG ZUR VISKOSITAETSERHOEHUNG VON KOHLENWASSERSTOFFEN.

摘要

The viscosity of a liquid hydrocarbon can be increased, to make it suitable for use as a fracturing fluid, by mixing therewith a viscosifying agent comprising (i) a copolymer of N,N-dimethylacrylamide and dimethylaminopropyl methacrylamide, (ii) a monocarboxylic acid and (iii) an amine having an ethanolamine structure.