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:
Jun. 22, 2021
Filed:
Feb. 21, 2019
Applicant:
Rhodia Operations, Paris, FR;
Inventors:
Rose Ndong, Plainsboro, NJ (US);
Olivier Back, Lyons, FR;
Pascal Herve, Talence, FR;
Jian Zhou, Langhorne, PA (US);
Assignee:
RHODIA OPERATIONS, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/72 (2006.01); C09K 8/76 (2006.01);
U.S. Cl.
CPC ...
C09K 8/72 (2013.01); C09K 8/725 (2013.01); C09K 8/76 (2013.01); E21B 43/26 (2013.01); C09K 2208/20 (2013.01); C09K 2208/32 (2013.01);
Abstract
Methods of acidizing a subterranean formation penetrated by a wellbore that include the steps of (a) injecting into the wellbore at a pressure below subterranean formation fracturing pressure a treatment fluid having a first viscosity and including an aqueous acid and a gelling agent selected from the group consisting of Formulas I-XI and combinations thereof; (b) forming at least one void in the subterranean formation with the treatment fluid; and (c) allowing the treatment fluid to attain a second viscosity that is greater than the first viscosity.