公开(公告)号：US12024983B2

公开(公告)日：2024-07-02

申请号：US17822343

申请日：2022-08-25

Applicant: ARAMCO SERVICES COMPANY

Inventor： Markus Albertz ,  Harun Ates ,  Anuj Gupta

IPC: E21B41/00 ,  E21B43/16

CPC classification number: E21B41/0064 ,  E21B43/164

Abstract: A method and system for both enhancing oil recovery of a reservoir and permanently sequestering carbon dioxide (CO2) is described. The method includes dissolving CO2 in a base fluid at a surface location of an injection formation, forming a dense CO2-brine solution, introducing the dense CO2-brine solution into an injection well, accumulating a volume of the dense CO2-brine solution in a structural low, displacing a native formation fluid from the injection well, increasing a fluid drive pressure from the injection well to a producing well, and displacing hydrocarbons of the producing well. The system includes an injection system in fluid communication with an injection well, a production well of the hydrocarbon production formation, and a dense CO2-brine solution that has a density greater than a native formation fluid of the injection formation.

公开(公告)号：US20240068331A1

公开(公告)日：2024-02-29

申请号：US17822343

申请日：2022-08-25

Applicant: ARAMCO SERVICES COMPANY

Inventor： Markus Albertz ,  Harun Ates ,  Anuj Gupta

IPC: E21B41/00 ,  E21B43/16

CPC classification number: E21B41/0064 ,  E21B43/164

Abstract: A method and system for both enhancing oil recovery of a reservoir and permanently sequestering carbon dioxide (CO2) is described. The method includes dissolving CO2 in a base fluid at a surface location of an injection formation, forming a dense CO2-brine solution, introducing the dense CO2-brine solution into an injection well, accumulating a volume of the dense CO2-brine solution in a structural low, displacing a native formation fluid from the injection well, increasing a fluid drive pressure from the injection well to a producing well, and displacing hydrocarbons of the producing well. The system includes an injection system in fluid communication with an injection well, a production well of the hydrocarbon production formation, and a dense CO2-brine solution that has a density greater than a native formation fluid of the injection formation.