Patent ID: 11905804
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E  C | IPC E

Claim 0:
1. A method for treating a hydrocarbon reservoir, comprising:
delivering a composition to the hydrocarbon reservoir, the composition comprising:
at least one acid, and
liquid or supercritical carbon dioxide (CO2);

exposing the delivered composition to water to activate the composition; and
treating a rock formation of the hydrocarbon reservoir with the activated composition,
wherein the at least one acid is dissolved in the liquid or supercritical CO2 with a cosolvent or surfactant, and the at least one acid is stearic acid, and the cosolvent or surfactant is selected from the group consisting of acetic acid, acetic acid and acetonitrile, ethanol, ethanol and acetonitrile, and methyl acetate.