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2 168 616

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IPC

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Application

2000115831/03, 2000-06-16

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Start date

2000-06-16

(22)

Actual filing date

2000-06-16

(45)

Published

2001-06-10

(72)

Inventor

Khajredinov N.Sh.Zagidullina L.N.Kotenev Ju.A.Andreev V.E.Zobov P.M.

(73)

Holder

Khajredinov Nil ShakhidzhanovichZagidullina Ljutsija NurievnaKotenev Jurij AlekseevichAndreev Vadim Evgen'EvichZobov Pavel Mikhajlovich

METHOD OF INCREASING OIL RECOVERY OF FORMATIONS Russian patent published in 2001 - IPC

Abstract RU 2168616 C1

FIELD: oil and gas production. SUBSTANCE: objective of invention is increasing oil recovery of formations using reagent favoring formation microflora in all-type deposits, including Devone, terrigene lower carbon, and carbonate without preliminary treatment. Method involves injecting reagent through injection well and production of oil through productive well. As reagent, biochemically purified waste waters (sewage from biological treatment stations after third aftertreatment before or after disinfecting) are used. EFFECT: increased oil recovery. 4 tbl

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RU 2 168 616 C1

Authors

Khajredinov N.Sh.

Zagidullina L.N.

Kotenev Ju.A.

Andreev V.E.

Zobov P.M.

Dates

2001-06-10—Published

2000-06-16—Filed