	US 11,981,862 B2
	Biocide composition and use thereof
Sang Hea Shim, Deerfield, IL (US); and Chung Soo Kim, Seoul (KR)
Assigned to JUSTEQ, LLC, Deerfield, IL (US); and ACCULAB CO., LTD., Seoul (KR)
Filed by JUSTEQ, LLC, Deerfield, IL (US); and ACCULAB CO., LTD., Seoul (KR)
Filed on Nov. 11, 2022, as Appl. No. 18/054,725.
Application 18/054,725 is a continuation of application No. 17/372,954, filed on Jul. 12, 2021, granted, now 11,499,089.
Application 17/372,954 is a continuation of application No. 16/068,299, granted, now 11,066,595, issued on Jul. 20, 2021, previously published as PCT/US2017/012475, filed on Jan. 6, 2017.
Claims priority of provisional application 62/275,272, filed on Jan. 6, 2016.
Prior Publication US 2023/0071077 A1, Mar. 9, 2023
Int. Cl. C09K 8/60 (2006.01); A01N 25/22 (2006.01); A01N 59/00 (2006.01); C09K 8/54 (2006.01)

CPC C09K 8/605 (2013.01) [A01N 25/22 (2013.01); A01N 59/00 (2013.01); C09K 8/54 (2013.01); C09K 2208/32 (2013.01)]

20 Claims

1. A process for preventing well souring in a gas or oil well comprising,

treating the gas or oil well with an aqueous, oxidizing biocide comprising

a stabilized hypochlorous acid solution having a pH of at least 11, and

a water soluble bromide ion source,

wherein the aqueous, oxidizing biocide contains about 1% by weight to about 20% by weight of a chlorine source, about 1% by weight to about 20% by weight of a stabilizer, about 5% by weight to about 10% by weight of a base, about 0.1% by weight to about 15% by weight of a water soluble bromide ion source, and about 35% by weight to about 92.9% by weight of water,

wherein the oil or gas well contains one or more compositions, wherein the one or more compositions comprise one or more crosslinkers, gelling agents, friction reducers, or surfactants.