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. 06, 2023
Filed:
Sep. 25, 2020
Applicant:
Texas A&m University, College Station, TX (US);
Inventors:
Jenn-Tai Liang, College Station, TX (US);
Hulli Guan, College Station, TX (US);
Assignee:
Texas A&M University, College Station, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/70 (2006.01); C09K 8/524 (2006.01); C09K 8/536 (2006.01); C09K 8/68 (2006.01); C09K 8/90 (2006.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
C09K 8/706 (2013.01); C09K 8/524 (2013.01); C09K 8/536 (2013.01); C09K 8/68 (2013.01); C09K 8/90 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C09K 2208/10 (2013.01); C09K 2208/24 (2013.01); C12Y 302/01004 (2013.01); C12Y 302/01015 (2013.01);
Abstract
Provided herein is a hydraulic fracturing fluid containing enzyme encapsulated hydrogel nanoparticles and a breaker composition of a viscosifier-degrading enzyme encapsulated in the hydrogel nanoparticle. Also provided are methods for hydraulic fracturing utilizing hydrogel nanoparticles encapsulating an enzyme as a breaker to prevent the premature degradation of the fracturing fluid, to improve transport and placement of the proppant and to facilitate subsequent cleaning of the fracturing fluid.