Patent ID: 11920084
Assignee: PIONEER NATURAL RESOURCES USA, INC.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 0:
1. A chemical enhanced hydrocarbon recovery method comprising:
introducing an enhanced hydrocarbon recovery composition comprising a surfactant component and a water component into a subterranean formation via a wellbore;
wherein the surfactant component comprises a mixture of isomerized C9-11 ethoxylated alcohols;
wherein the mixture of isomerized C9-11 ethoxylated alcohols comprises a C9 ethoxylated alcohol, a C10 ethoxylated alcohol, a C11 ethoxylated alcohol, isomers of the C9 ethoxylated alcohol, isomers of the C11 ethoxylated alcohol, and isomers of the C11 ethoxylated alcohol; and
wherein an amount of the C11 ethoxylated alcohol and the isomers of the C10 ethoxylated alcohol in the mixture of isomerized C9-11 ethoxylated alcohols is greater than about 50 wt % based on a total weight of the mixture of isomerized C9-11 ethoxylated alcohols.