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:
Feb. 23, 2021
Filed:
Apr. 30, 2019
Applicant:
Conocophillips Company, Houston, TX (US);
Inventor:
Gary Jenneman, Bartlesville, OK (US);
Assignee:
CONOCOPHILLIPS COMPANY, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N 35/04 (2006.01); A01N 59/00 (2006.01); C02F 1/50 (2006.01); A01N 35/02 (2006.01); C09K 8/52 (2006.01); C09K 8/60 (2006.01); C02F 103/10 (2006.01); C02F 103/36 (2006.01);
U.S. Cl.
CPC ...
A01N 35/04 (2013.01); A01N 35/02 (2013.01); A01N 59/00 (2013.01); C02F 1/50 (2013.01); C09K 8/52 (2013.01); C09K 8/605 (2013.01); C02F 2103/10 (2013.01); C02F 2103/365 (2013.01); C02F 2303/04 (2013.01);
Abstract
A process is provided for the time dependent reduction and kill of cellular bacteria in a fluid by sequential exposure to nitrites and a low concentration of biocide. Oilfield water containing sulfate-reducing bacteria can be supplied with a timed sequential exposure of nitrite and biocide. The timed sequential addition of the biocide following exposure to the nitrite provides enhanced kill of the sulfate-reducing bacteria at concentrations of biocide that are lower than would be possible using simultaneous addition of these materials.