# US 2021/0340430 A1 · Biocide composition and use thereof

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- Number: US 2021/0340430 A1
- Document ID: US20210340430A1
- Status: Published application
- Kind: A1
- Application number: 17/372,954
- Filed: 2021-07-12
- Published: 2021-11-04
- Earliest claimed: 2016-01-06
- Assignees: Justeq, LLC; Acculab Co., Ltd.
- Applicants: Justeq, LLC; Acculab Co., Ltd.
- Inventors: Sang Hea SHIM; Chung Soo KIM
- Web page: https://patentgrep.com/patent/US20210340430A1

## CPC

- C09K 8/032: {Inorganic additives}
- C09K 8/605: {containing biocides}
- A01N 25/22: containing ingredients stabilising the active ingredients
- A01N 59/00: Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- C09K 8/54: Compositions for in situ inhibition of corrosion in boreholes or wells
- C09K 8/62: Compositions for forming crevices or fractures
- C09K 2208/20: Hydrogen sulfide elimination
- C09K 2208/32: Anticorrosion additives
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

The present disclosure relates to biocide compositions, formulations and methods for using formulations. In particular the present disclosure relates to biocide compositions and their use in effecting biocidal activity in subterranean oil and gas wells being drilled, completed, worked over or produced.

## Claims

### Claim at position 1

1-3. (canceled)

### Claim 4

A process for controlling biofilms on gas or oil well equipment comprising,
a. treating the gas or oil well equipment with a stabilized hypochlorous acid solution, and
b. treating the gas or oil well equipment with a water soluble bromide ion source.

### Claim 5

(canceled)

### Claim 6

A process for treating water in a gas or oil well comprising,
a. treating the gas or oil well with a stabilized hypochlorous acid solution, and
b. treating the gas or oil well with a water soluble bromide ion source.

### Claim 7

(canceled)

### Claim 8

A method of controlling bacterial growth in a frac fluid comprising,
a. treating the frac fluid with a biocide composition comprising a stabilized hypochlorous acid solution, and a water soluble bromide ion source.

### Claim at position 7

9-17. (canceled)