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2 084 622

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C1

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IPC

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Application

96101072/03, 1996-01-29

(22)

Actual filing date

1996-01-29

(45)

Published

1997-07-20

(72)

Inventor

Kudinov V.I.Datsik M.I.Maljugin V.M.Borisov A.P.Prosvirin A.A.Bogomol'Nyj E.I.

(73)

Holder

Aktsionernoe Obshchestvo

METHOD FOR TREATMENT OF WELL BOTTOM-HOLE ZONE Russian patent published in 1997 - IPC

Abstract RU 2084622 C1

FIELD: oil production industry. SUBSTANCE: method can be used in levelling permeability of interlayers in producing wells. Selected in producing reservoir zone is interval to be treated with water encroachment of product not over 60%. Interval to be treated is isolated from above- and below-lying intervals. Injected into interval to be treated are return oil emulsion and additionally initial portion of water, water solution of acid under pressure below injection pressure of return oil emulsion and second portion of water, then technological pause is made. Operations of injection and technological pause are repeated at increasing pressure of injecting water solution of acid up to pressure of injecting return oil emulsion. Then connected are treated zone of reservoir, above- and below-lying intervals. EFFECT: high efficiency.

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RU 2 084 622 C1

Authors

Kudinov V.I.

Datsik M.I.

Maljugin V.M.

Borisov A.P.

Prosvirin A.A.

Bogomol'Nyj E.I.

Dates

1997-07-20—Published

1996-01-29—Filed

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