Patent ID: 11906417
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G  E | IPC G

Claim 13:
14. A method of at least partially restoring carbonate core samples, the method comprising:
inserting a carbonate core sample extracted from a subterranean formation into a core flooding test machine;
measuring a first porosity and a first brine permeability of the carbonate core sample;
pumping a fluid through the carbonate core sample to flood the carbonate core sample, the fluid comprising at least one of a high-molecular weight polymer solution and a gel particle solution; and
at least partially restoring the porosity and the brine permeability of the carbonate core sample by:
pumping an oxidizing solution through the carbonate core sample, the oxidizing solution comprises 1% NaClO in 2% KCl;
heating the carbonate core sample to a temperature of between 60° C. and 600° C.; and
maintaining the temperature for at least 25 minutes.