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2 169 259

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IPC

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Application

99124220/03, 1999-11-12

(24)

Start date

1999-11-12

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Actual filing date

1999-11-12

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Published

2001-06-20

(72)

Inventor

Garifullin F.S.Gabdullin R.F.Valeev M.D.Shil'Kova R.F.

(73)

Holder

Oao Aktsionernaja Neftjanaja Kompanija

METHOD OF SUPPRESSING GROWTH OF SULFATE-REDUCING BACTERIA Russian patent published in 2001 - IPC

Abstract RU 2169259 C1

FIELD: oil and gas production. SUBSTANCE: suppressing sulfate-reducing bacteria in oil formation is preceded by determining in each well active biocenosis zone and volume of required bactericide agent. The latter is then injected in volume equal to volume of active biocenosis zone into formation through formation pressure-maintenance system. After injection, operation of injection wells is consecutively stopped for a period of time required for complete suppression of vital activity of microorganisms. EFFECT: increased bacteria suppression efficiency with lower concentrations of bactericide. 1 tbl

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RU 2 169 259 C1

Authors

Garifullin F.S.

Gabdullin R.F.

Valeev M.D.

Shil'Kova R.F.

Dates

2001-06-20—Published

1999-11-12—Filed

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