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:
Nov. 07, 2017
Filed:
Mar. 16, 2016
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Salah El-Din Elkatatny, Dhahran, SA;
Mohamed Mahmoud, Dhahran, SA;
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Abstract
A method of evaluating the effectiveness of matrix acidizing treatment in a subterranean formation surrounding a wellbore that involves injecting a plurality of cationic salts into multiple sections of the subterranean formation before acidizing treatment, followed by collecting the cationic salts at the surface of the wellbore after producing the wellbore. A permeability recovery factor is calculated from a concentration ratio of the injected salt to the collected salt. The permeability recovery factor shows the effectiveness of the acidizing treatment. The permeability recovery factor also indicates the contribution of each individual section of the formation to the total production flow.