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2 065 951

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Application

94026721/03, 1994-07-18

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Actual filing date

1994-07-18

(45)

Published

1996-08-27

(72)

Inventor

Verderevskij Ju.L.Valeeva T.G.Aref'Ev Ju.N.Galimov R.R.Golovko S.N.Muslimov R.Kh.Khatmullin A.M.Zijatdinov I.Kh.

(73)

Holder

Nauchno-Issledovatel'Skij InstitutNauchno-Proizvodstvennoe Predprijatie

METHOD OF TREATING BOTTOM ZONE OF NONUNIFORM OIL BED Russian patent published in 1996 - IPC

Abstract RU 2065951 C1

FIELD: oil and gas production. SUBSTANCE: method includes successively pumping in an acid reagent and a reagent interacting with acid reagent, the former being a process liquid or process lignosulfonate, and the latter being hydrochloric acid, its mixture with hydrofluoric acid, or special-type compositions. Advantageously, weight ratio of the two reagent is 1:1. EFFECT: increased oil production. 2 cl, 1 tbl

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RU 2 065 951 C1

Authors

Verderevskij Ju.L.

Valeeva T.G.

Aref'Ev Ju.N.

Galimov R.R.

Golovko S.N.

Muslimov R.Kh.

Khatmullin A.M.

Zijatdinov I.Kh.

Dates

1996-08-27—Published

1994-07-18—Filed

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