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:
Feb. 21, 2023
Filed:
Oct. 08, 2020
Applicant:
Baker Hughes Oilfield Operations Llc, Houston, TX (US);
Inventors:
Ahmed Zakaria, Houston, TX (US);
John Mayor, Cypress, TX (US);
D. V. Satyanarayana Gupta, The Woodlands, TX (US);
Minh Quoc Vo, Spring, TX (US);
Assignee:
Baker Hughes Oilfield Operations LLC, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/68 (2006.01);
U.S. Cl.
CPC ...
E21B 43/26 (2013.01); C09K 8/68 (2013.01);
Abstract
A fluid for use in hydraulic fracturing contains underivatized guar or a guar gum derivative as viscosifying or gelling polymer, a crosslinking agent, carbon dioxide as foaming agent and urea and, optionally, a bifunctional organic compound containing at least one hydroxyl group and at least one quaternary group and, optionally, a non-gaseous foaming agent. The fluid may be characterized by a low pH such as a pH than or equal to 3.0 and less than or equal to 5.0.