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(19)

RU

(11)

2 515 679

(13)

C2

(51)

IPC

A01N47/06(2006-01-01)

A01N37/26(2006-01-01)

A01N43/82(2006-01-01)

A01N37/40(2006-01-01)

A01N57/20(2006-01-01)

A01N43/90(2006-01-01)

A01N47/30(2006-01-01)

A01N43/88(2006-01-01)

A01N33/18(2006-01-01)

A01N47/36(2006-01-01)

A01N43/70(2006-01-01)

A01N41/10(2006-01-01)

A01N37/20(2006-01-01)

A01N43/653(2006-01-01)

A01N39/04(2006-01-01)

A01P13/00(2006-01-01)

(21) (22)

Application

2011117339/13, 2009-10-01

(24)

Start date

2009-10-01

(22)

Actual filing date

2009-10-01

(45)

Published

2014-05-20

(72)

Inventor

In' Bej

(73)

Holder

Dau Global Teknolodzhiz Ehlehlsi

BIOCIDAL COMPOSITIONS AND METHODS OF THEIR APPLICATION Russian patent published in 2014 - IPC A01N47/06 A01N37/26 A01N43/82 A01N37/40 A01N57/20 A01N43/90 A01N47/30 A01N43/88 A01N33/18 A01N47/36 A01N43/70 A01N41/10 A01N37/20 A01N43/653 A01N39/04 A01P13/00 

Abstract RU 2515679 C2

FIELD: chemistry.

SUBSTANCE: invention relates to biocides. Biocidal composition contains gluteraldehide and biocidal oxazolidine compound. To realise control over microorganisms in water or water-containing system in the process of oil or gas extraction the system is processed with composition, containing gluteraldehide and biocidal oxazolidine compound. Oxazolidine compound represents 4,4-dimethyloxazolidine. Weight ratio of gluteraldehide to 4,4-dimethyloxazolidine is in the range from 6:1 to 1:9. Oxazolidine compound represents 7-ethylbicyclooxazolidine. Weight ratio of gluteraldehide to 7-ethylbicyclooxazolidine is in the range from 20:1 to 1:20. Water or water-containing system contains sulfides. Microorganisms to be eliminated represent sulfate-reducing bacteria.

EFFECT: invention makes it possible to increase efficiency of control over microorganisms in water or water-containing systems, such as systems, detected in the process of oil or natural gas extraction.

3 cl, 7 tbl, 3 ex

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RU 2 515 679 C2

Authors

In' Bej

Dates

2014-05-20—Published

2009-10-01—Filed

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