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2 047 756

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Application

5065656/03, 1992-10-13

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Actual filing date

1992-10-13

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Published

1995-11-10

(72)

Inventor

Pozdeev O.V.Glushchenko V.N.Tul'Bovich B.I.Nevolin V.G.Matjashov S.V.Uzbekov D.M.Chaplanov P.E.Izmest'Ev A.F.Pozdeev A.N.Timershin G.T.

(73)

Holder

Permskij Gosudarstvennyj Nauchno-Issledovatel'Skij I Proektnyj Institut Neftjanoj Promyshlennosti

METHOD FOR ACID TREATMENT OF BOTTOM HOLE AREA OF FORMATION Russian patent published in 1995 - IPC

Abstract RU 2047756 C1

FIELD: oil producing industry. SUBSTANCE: method involves application of an acid treatment composition containing product of esterification of ethoxylates of fatty alcohols of C7-C12 fraction with phosphorus pentoxide or product of esterification of ethoxy isononylphenol (АФ9-10) with phosphorus pentoxide 1.0-4.0% vol, hydrofluoric acid solution (30-50%) 2.0-15.0, and hydrochloric acid solution (10-20%) the rest. EFFECT: higher efficiency. 1 tbl

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RU 2 047 756 C1

Authors

Pozdeev O.V.

Glushchenko V.N.

Tul'Bovich B.I.

Nevolin V.G.

Matjashov S.V.

Uzbekov D.M.

Chaplanov P.E.

Izmest'Ev A.F.

Pozdeev A.N.

Timershin G.T.

Dates

1995-11-10—Published

1992-10-13—Filed

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