SURFACTANT-LESS ALKALINE-POLYMER FORMULATIONS FOR RECOVERING REACTIVE CRUDE OIL
摘要
Compositions and methods for oil recovery using a surfactant-less alkaline-polymer system in hard water or hard brine is described in the instant invention. The formulation further includes a chelating agent, an alkaline agent (which can be the same as the chelating agent), and a co-solvent. The formulations as disclosed herein are capable of forming a surfactant in-situ resulting in Winsor Type III micro-emulsions of low interfacial tension.
申请公布号
WO2011150060(A3)
申请公布日期
2012.04.19
申请号
WO2011US37903
申请日期
2011.05.25
申请人
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM;WEERASOORIYA, UPALI P.;POPE, GARY A.