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:
Aug. 11, 2020
Filed:
May. 10, 2017
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Ali Yousef, Dhahran, SA;
Subhash Ayirala, Dhahran, SA;
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/58 (2006.01); C09K 8/588 (2006.01); E21B 43/20 (2006.01);
U.S. Cl.
CPC ...
C09K 8/58 (2013.01); C09K 8/588 (2013.01); E21B 43/20 (2013.01);
Abstract
A method for recovering oil from a hydrocarbon-bearing reservoir using pressure pulse injections of an aqueous salt solution is provided. The aqueous salt solution includes one or more salts suitable for enhancing oil recovery in carbonate reservoirs and has a salinity in the range of about 5,000 parts-per-million (ppm) total dissolved solids (TDS) to about 7,000 ppm TDS. The aqueous salt solution may be injected into a reservoir using continuous or periodic pressure pulse injections.