US 11,982,160 B1
Systems for waste gas sequestration in geological formations and methods of gas sequestration of waste gases in geological formations
Zeyad Tareq Ahmed, Chassell, MI (US); Serguey Viktorov Arkadakskiy, Alberta (CA); and Noushad Kunnummal, Cleveland Heights, OH (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Oct. 24, 2022, as Appl. No. 17/971,970.
Int. Cl. E21B 41/00 (2006.01)
CPC E21B 41/0064 (2013.01) 20 Claims
OG exemplary drawing
 
14. A method of gas sequestration of waste gas in a geological formation comprising:
forming a dissolved waste gas solution within a wellbore by:
passing waste gas through an inner tubing;
passing an aqueous solution into the wellbore through a water passage and an outer tubing comprising a plurality of diffusion membranes; and
passing the waste gas through the diffusion membranes to be mixed with the aqueous solution in the outer tubing to produce the dissolved waste gas solution;
transporting at least a portion of the dissolved waste gas solution to the geological formation, and
sequestering the waste gas by reacting the waste gas in the dissolved waste gas solution with reactive rock in the geological formation to form carbonates, sulfides, or combinations thereof.