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2 123 588

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Application

97108605/03, 1997-05-28

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Actual filing date

1997-05-28

(45)

Published

1998-12-20

(72)

Inventor

Verderevskij Ju.L.Sheshukova L.A.Golovko S.N.Muslimov R.Kh.Gajnullin N.I.Valeeva T.G.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Po Neftepromyslovoj KhimiiNauchno-Proizvodstvennoe Predprijatie

COMPOUND FOR TREATING BOTTOM-HOLE ZONE OF BED Russian patent published in 1998 - IPC

Abstract RU 2123588 C1

FIELD: oil production industry. SUBSTANCE: this relates to compounds intended for treating bottom-hole zone of oil bed which is not uniformly permeable. Compound for treating bottom-hole zone contains muriatic acid, solvent, technical lignosulfonate, non-ionogenic oxialkylated surface-active agent, and water. Used as solvent is water-methanol fraction which is by-product in production of technical phosphorous acid. Components are taken in following proportion, mass%: muriatic acid 25.0-80.0, aforesaid water-methanol fraction 1.0-24.5, technical lignosulfonate 2.0-20.0, non-ionogenic oxialkylated agent 0.1-5.0, water - the balance. Aforesaid compound for treating bottom-hole zone of oil bed is efficient and relatively inexpensive when used for overall treatment of bottom-hole zone. EFFECT: high efficiency. 2 tbl

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RU 2 123 588 C1

Authors

Verderevskij Ju.L.

Sheshukova L.A.

Golovko S.N.

Muslimov R.Kh.

Gajnullin N.I.

Valeeva T.G.

Dates

1998-12-20—Published

1997-05-28—Filed

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