Patent ID: 7886824
Filing Date: 2011-02-15
Classification: B01F,C09K

Abstract:
1. A microemulsion system for treating hydrocarbon producing wells comprising: a surfactant subsystem including at least one monoalkyl branched propoxy sulfate anionic surfactant, a solvent subsystem including from about 0.1 wt. % and about 50 wt. % of an organic solvent and from about 20 wt. % to about 75 wt. % water, where the organic solvent comprises: (a) benzene, an alkarene, or mixtures thereof, (b) a terpene or a mixture of terpenes, or (c) d-limonene or a mixture of d-limonene and dipentene, and a co-solvent subsystem including a mixture of alcohols and at least one polypropylene glycol, where the system increase hydrocarbon production and where the hydrocarbon comprises crude oil or gas and crude oil.