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. 29, 2020
Filed:
Jan. 17, 2019
Applicant:
Shrieve Chemical Products, Inc., The Woodlands, TX (US);
Inventor:
Thomas Donovan Welton, Conroe, TX (US);
Assignee:
Shrieve Chemical Products, Inc., The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/52 (2006.01); E21B 21/00 (2006.01); E21B 37/08 (2006.01); E21B 43/22 (2006.01); C08F 220/54 (2006.01); C09K 8/508 (2006.01); C09K 8/512 (2006.01); E21B 37/00 (2006.01); C09K 8/035 (2006.01); E21B 43/08 (2006.01); E21B 43/10 (2006.01); E21B 43/25 (2006.01); C08F 220/56 (2006.01); C09K 8/12 (2006.01); G01V 3/20 (2006.01); G01V 3/34 (2006.01); C08F 212/14 (2006.01); C08F 228/02 (2006.01);
U.S. Cl.
CPC ...
C09K 8/52 (2013.01); C08F 220/54 (2013.01); C08F 220/56 (2013.01); C09K 8/035 (2013.01); C09K 8/12 (2013.01); C09K 8/5083 (2013.01); C09K 8/512 (2013.01); E21B 21/003 (2013.01); E21B 37/00 (2013.01); E21B 37/08 (2013.01); E21B 43/082 (2013.01); E21B 43/10 (2013.01); E21B 43/25 (2013.01); G01V 3/20 (2013.01); G01V 3/34 (2013.01); C08F 212/14 (2013.01); C08F 228/02 (2013.01); C09K 2208/26 (2013.01);
Abstract
A method may include circulating a breaker fluid into a wellbore having a filtercake on the walls thereon, the filter cake including copolymer formed from at least one acrylamide monomer and at least one sulfonated anionic monomer, the breaker fluid comprising: a base fluid; and a mixture of hydrolysable esters of dicarboxylic acids.