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:
Sep. 21, 2021
Filed:
Jun. 09, 2016
Applicant:
Championx Usa Inc., Sugar Land, TX (US);
Inventors:
Mario Roberto Rojas, Katy, TX (US);
Vittoria Balsamo de Hernandez, Katy, TX (US);
Assignee:
ChampionX USA Inc., Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/12 (2006.01); C09K 8/516 (2006.01); C09K 8/487 (2006.01); C09K 8/467 (2006.01); C04B 20/10 (2006.01); C04B 14/06 (2006.01); C04B 24/28 (2006.01); C04B 28/04 (2006.01); C09K 8/46 (2006.01); E21B 21/00 (2006.01); E21B 33/14 (2006.01); C04B 111/00 (2006.01); C04B 103/00 (2006.01); C04B 103/46 (2006.01);
U.S. Cl.
CPC ...
C09K 8/12 (2013.01); C04B 14/062 (2013.01); C04B 20/1033 (2013.01); C04B 24/287 (2013.01); C04B 28/04 (2013.01); C09K 8/46 (2013.01); C09K 8/467 (2013.01); C09K 8/487 (2013.01); C09K 8/516 (2013.01); E21B 21/003 (2013.01); E21B 33/14 (2013.01); C04B 2103/0051 (2013.01); C04B 2103/465 (2013.01); C04B 2111/00008 (2013.01); C09K 2208/10 (2013.01); C09K 2208/18 (2013.01); Y02W 30/91 (2015.05);
Abstract
Drilling fluid compositions and methods of using them are described. The drilling fluid compositions comprise nanocomposites comprising core-shell morphology, wherein the core material comprises a nanoparticle having an average particle size of about 5 nm to 100 nm, and the shell material comprises a crosslinked polymer comprising acrylamide repeat units. The nanocomposites are effective fluid loss control agents when the drilling fluids are employed in mud drilling operations.