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.

Date of Patent:
Aug. 27, 2024

Filed:

Oct. 07, 2022
Applicants:

Saudi Arabian Oil Company, Dhahran, SA;

King Fahd University of Petroleum & Minerals, Dhahran, SA;

Inventors:

Rajendra Arunkumar Kalgaonkar, Dhahran, SA;

Mohammed Abudullah Bataweel, Dhahran, SA;

Nour Othman Baqader, Khobar, SA;

Nisar Ullah, Dhahran, SA;

Muhammad Mansha, Dhahran, SA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/60 (2006.01); E21B 33/138 (2006.01);
U.S. Cl.
CPC ...
E21B 43/26 (2013.01); C09K 8/602 (2013.01); C09K 2208/30 (2013.01);
Abstract

A method of controlling a permeability zone in a reservoir includes introducing a diverter agent comprising a morpholinium based zwitterionic surfactant including a sulfonate terminal moiety, an ammonium-based zwitterionic surfactant, and an activator in a wellbore. Once introduced, the diverter agent contacts a high permeability zone in the reservoir. The diverter agent heats and gels to form a gelled diverter agent in the high permeability zone, subsequently forming a zone of decreased permeability.


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