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:
Dec. 01, 2020
Filed:
Sep. 09, 2019
Applicant:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Inventors:
Abdullah S. Sultan, Dhahran, SA;
Ziad Sidaoui, Dhahran, SA;
Assignee:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/74 (2006.01); C09K 8/70 (2006.01);
U.S. Cl.
CPC ...
C09K 8/74 (2013.01); C09K 8/70 (2013.01); C09K 2208/32 (2013.01); E21B 43/26 (2013.01);
Abstract
A method of acidizing a subterranean geological formation by injecting an emulsified acid into a wellbore, wherein the emulsified acid includes at least an aqueous phase comprising a hydrochloric acid solution, an oil phase comprising waste oil, and an emulsifier, and wherein the waste oil contains 45-75% by weight of aromatic compounds and preferably contains less than 0.5% by weight of non-hydrocarbon compounds. Various embodiments, and combinations of embodiments, of the emulsified acid and the method of acidizing are provided.