Gemini epoxide surfactant compositions
AssigneeBoard of Regents, The University of Texas System
InventorsUpali A. Weerasooriya, Gary A. Pope, Mukul M. Sharma, Jiajia Cai
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Abstract
Provided herein are inter alia novel compositions and methods having application in the field of enhanced oil recovery. In particular, the Gemini compounds disclosed herein and mixtures thereof presented herein can be used, inter alia, for the recovery of a large range of crude oil compositions from challenging reservoirs
Claims69
A compound having the formula:
- wherein
- R1 is substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl;
- R2 is hydrogen or substituted or unsubstituted alkyl;
- R3A and R3B are independently hydrogen or substituted or unsubstituted alkyl;
- L1 is substituted or unsubstituted alkylene, substituted or unsubstituted cycloalkylene or substituted or unsubstituted arylene;
- m is an integer of 1 to 200;
- n1 and n2 are independently integers from 0 to 20;
- X is —SO3−M+, —CH2C(O)O−M+, —SO3H or —CH2C(O)OH;
- and
- M+ is a monovalent, divalent or trivalent cation.
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Dependencies are inferred from the claim text.