Patent ID: 9222013
Filing Date: 2015-12-29
Classification: C09K

Abstract:
1. A well treatment microemulsion having an internal aqueous phase and an external oil phase, the well treatment microemulsion comprising: about 35% to about 45% by weight of an oil in the external phase; about 21% to about 40% by weight of an emulsifying surfactant having a hydrophile lipophile balance of between 10 and 18, wherein the surfactant comprises a surfactant selected from the group consisting of ethoxylated castor oil comprising 25-45 moles of ethylene oxide, ethoxylated alcohols comprising 5-20 moles of ethylene oxide, ethoxylated amides comprising 5-20 moles of ethylene oxide, and ethoxylated fatty acids comprising 5-20 moles of ethylene oxide; about 1% to about 35% by weight of an alcohol; and the internal aqueous phase comprises about 9% to about 16% by weight water.