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:
Mar. 08, 2022
Filed:
Jan. 29, 2021
Applicant:
Cnpc Usa Corporation, Houston, TX (US);
Assignee:
CNPC USA CORPORATION, Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/588 (2006.01); C09K 8/24 (2006.01); C08L 33/26 (2006.01); C08L 33/08 (2006.01); C09K 8/28 (2006.01); E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
C09K 8/588 (2013.01); C08L 33/08 (2013.01); C08L 33/26 (2013.01); C09K 8/24 (2013.01); C09K 8/28 (2013.01); E21B 43/12 (2013.01); C09K 2208/28 (2013.01);
Abstract
A composition for an environmentally friendly hydrofracturing friction reducer product can be synthesized. A method for synthesis of a friction reducer emulsion can include using gas-to-liquid synthesized oil as a continuous phase in invert emulsion polymerization. The composition can be optimized by using a suitable amount of salt tolerant monomer for the best performance with salt tolerant features. Various inverting agents can be utilized for the self-inverting in brine with good product stability. The optimized friction reducer can be used in weighted brine hydrofracturing.