US 12,297,727 B2
Enhanced CO2 fracking operation
Abdulaziz S. Al-Qasim, Dammam (SA); and Yuguo Wang, Dhahran (SA)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Jun. 29, 2023, as Appl. No. 18/343,887.
Prior Publication US 2025/0003320 A1, Jan. 2, 2025
Int. Cl. E21B 43/26 (2006.01); E21B 43/24 (2006.01)
CPC E21B 43/2605 (2020.05) [E21B 43/2405 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for stimulating hydrogen production from an injection formation, the method comprising:
providing a well traversing a subsurface into an injection formation containing hydrocarbons;
introducing carbon dioxide into the injection formation via the well;
introducing water into the injection formation via the well;
introducing combustion gas into the injection formation via the well;
stimulating the injection formation using one or more of infrasonic, sonic, and ultrasonic stimulation;
monitoring the injection formation via one or more sensors located in the injection formation to determine one or more properties of reactions in the injection formation and a flow back effluent;
placing a membrane configured to produce hydrogen in the well; and
conducting well flowback operations.