The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2025
Filed:
Apr. 13, 2022
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Qiwei Wang, Dhahran, SA;
Tao Chen, Dhahran, SA;
Yasser A. Al-Jeshi, Al Qatif, SA;
Nada Alghamdi, Dhahran, SA;
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/20 (2006.01); C02F 1/52 (2023.01); C02F 101/10 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
C02F 1/5236 (2013.01); C02F 1/5209 (2013.01); E21B 43/20 (2013.01); C02F 2101/101 (2013.01); C02F 2103/08 (2013.01); C02F 2209/19 (2013.01); C02F 2303/22 (2013.01); C02F 2305/00 (2013.01);
Abstract
A method and system of providing seawater into a subterranean formation, including adding chloride salt having a metal cation to the seawater (having sulfate), precipitating sulfate salt (of the metal cation and sulfate), removing the sulfate salt as precipitated to give treated seawater having less sulfate than the seawater, and injecting the treated seawater into the subterranean formation.