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:
Jan. 12, 2021
Filed:
Aug. 29, 2016
Applicant:
Liberty Oilfield Services, Llc, Denver, CO (US);
Inventors:
Ahmed M. Shahin, Calgary, CA;
Bilu Cherian, Calgary, CA;
Assignee:
Liberty Oilfield Services, LLC, Denver, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/592 (2006.01); C09K 8/588 (2006.01);
U.S. Cl.
CPC ...
C09K 8/592 (2013.01); C09K 8/588 (2013.01); C09K 2208/32 (2013.01);
Abstract
A stimulation fluid including (i) an aqueous solution of an ammonium salt capable of being exothermally oxidized to produce heat and gas, (ii) an aqueous solution of an oxidizing agent capable of oxidizing the ammonium salt; (iii) a water-soluble inorganic acid salt and/or an organic carboxylic acid salt of a tertiary amine; (iv) a low molecular weight carboxylic acid; and (v) a high salinity brine containing divalent metal ions; and (vi) optionally, a surfactant.