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:
Apr. 13, 2021
Filed:
Jul. 24, 2019
Saudi Arabian Oil Company, Dhahran, SA;
Ali Abdullah Al-Taq, Qatif, SA;
Zuhair A. Al-Yousif, Saihat, SA;
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A method for treating a subterranean formation with a foamed acid system is disclosed. The method includes introducing a treatment fluid into the formation. The treatment fluid includes a first solution and a second solution. The first solution includes an ammonium containing compound and an acid. The second solution includes a nitrite containing compound. One or both of the solutions further include a foaming agent. The solutions are mixed within the formation to generate a nitrogen gas. The method further includes, allowing the compounds to generate nitrogen in the presence of the foaming agent to form a foam and generate the foamed acid system within the formation. The acid present in the foamed acid system reacts with soluble substances in the subterranean formation to increase permeability of the subterranean formation and enable enhanced production of reservoir fluids.