US 12,258,845 B2
Subterranean storage of hydrogen foams
Sehmus Ozden, Katy, TX (US); Ayrat Gizzatov, Winchester, MA (US); and Zuhair Al Yousef, Cypress, TX (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed on Jul. 5, 2023, as Appl. No. 18/347,469.
Prior Publication US 2025/0012177 A1, Jan. 9, 2025
Int. Cl. E21B 43/22 (2006.01); E21B 21/14 (2006.01); E21B 43/16 (2006.01)
CPC E21B 43/166 (2013.01) 20 Claims
 
1. A method comprising:
placing a hydrogen foam in a subterranean location;
wherein the hydrogen foam comprises a continuous phase generated from a foamable composition comprising an aqueous fluid and a discontinuous phase comprising at least hydrogen gas, wherein the hydrogen gas is present in the hydrogen foam at a concentration of 0.001 vol % to 99.9 vol %, based on total volume of the hydrogen foam; and
maintaining the hydrogen foam in the subterranean location;
wherein the foamable composition comprises a foam stabilizing agent comprising a polymer, a plurality of nanoparticles, a surfactant, or any combination thereof, and,
wherein the surfactant comprises at least one fluorocarbon-based surfactant.