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. 22, 2020
Filed:
Feb. 17, 2018
Applicant:
Lamberti S.p.a., Albizzate, IT;
Inventors:
Luigi Merli, Saronno, IT;
Letizia Privitera, Sumirago, IT;
Lorenzo Giardini, Casella, IT;
Pierangelo Pirovano, Comerio, IT;
Giovanni Floridi, Novara, IT;
Giuseppe LiBassi, Gavirate, IT;
Assignee:
Lamberti SPA, Albizzate, IT;
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/06 (2006.01); C09K 8/528 (2006.01); C09K 8/52 (2006.01); C09K 8/524 (2006.01); E21B 37/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/528 (2013.01); C09K 8/52 (2013.01); C09K 8/524 (2013.01); E21B 37/00 (2013.01); E21B 37/06 (2013.01); C09K 2208/20 (2013.01); C09K 2208/22 (2013.01);
Abstract
Cleaning composition for use in cleaning wellbore walls, tubing or casing comprising: (i) from about 5% to 100% by weight of a mixture M consisting of from 10% to 50% by weight of acetophenone, from 5% to 30% by weight of butyl glycol and from 40% to 80% by weight of a surfactant, and (ii) from 0% to 95% by weight of water, in which (i)+(ii) sum up for at least 85% by weight of the cleaning composition; and process for cleaning a wellbore wall.