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2 100 586

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Application

95113737/03, 1995-08-09

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Actual filing date

1995-08-09

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Published

1997-12-27

(72)

Inventor

Valeeva T.G.Efremov A.I.Khlebnikov V.N.Shkuro V.G.Verderevskij Ju.L.Gogolashvili T.L.Zijatdinov I.Kh.Zheltukhin I.A.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Po Neftepromyslovoj KhimiiCheboksarskoe Aktsionernoe Obshchestvo Otkrytogo Tipa

COMPOUND FOR ACID TREATMENT OF WELL OR BOTTOM-HOLE FORMATION ZONE Russian patent published in 1997 - IPC

Abstract RU 2100586 C1

FIELD: oil and gas producing industry, in particular, compounds for acid treatment of wells or bottom-hole formation zones. SUBSTANCE: compound contains the following components, wt.-%: hydrocarbon acid, 10.0-34.0; mixture of still bottoms of aniline or n-phenetidine or santonin and hydrophylic organic solvent, 3.5-19.0; water, the balance. EFFECT: efficient action on wells due to removal of asphalt-resin-paraffin accumulations, agrillaceous particles, oxides and hydroxides of iron, and on bottom-hole formation zone due to reduction of filtering resistance of bottom-hole formation zone. 2 tbl

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RU 2 100 586 C1

Authors

Valeeva T.G.

Efremov A.I.

Khlebnikov V.N.

Shkuro V.G.

Verderevskij Ju.L.

Gogolashvili T.L.

Zijatdinov I.Kh.

Zheltukhin I.A.

Dates

1997-12-27—Published

1995-08-09—Filed

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