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2 013 527

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Application

5021878/03, 1991-12-28

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Actual filing date

1991-12-28

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Published

1994-05-30

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Inventor

Shirokov V.A.Gorbunov A.T.Zhdanov S.A.Shakhverdiev A.Kh.Petrakov A.M.Khodakov I.V.Gumenjuk V.A.Germashev V.G.Kononova N.A.Gumerskij Kh.Kh.

(73)

Holder

Vsesojuznyj Neftegazovyj Nauchno-Issledovatel'Skij Institut

ACID SURFACE-ACTIVE SYSTEM COMPOSITION FOR INJECTION AND PRODUCING WELL BOTTOM-HOLE ZONE TREATMENT Russian patent published in 1994 - IPC

Abstract RU 2013527 C1

FIELD: oil producing industry. SUBSTANCE: injection and producing well bottom-hole zone is treated by a composition containing (in % by mass): a product of a joint processing of acid tar and ethoxy alkyl phenol АP9-4-"neftenol N" 2-8; hydrochloric acid 92-98. EFFECT: reduced water permeability. 1 tbl

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RU 2 013 527 C1

Authors

Shirokov V.A.

Gorbunov A.T.

Zhdanov S.A.

Shakhverdiev A.Kh.

Petrakov A.M.

Khodakov I.V.

Gumenjuk V.A.

Germashev V.G.

Kononova N.A.

Gumerskij Kh.Kh.

Dates

1994-05-30—Published

1991-12-28—Filed

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