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2 208 020

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Application

2001104123/04, 2001-02-15

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Start date

2001-02-15

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Actual filing date

2001-02-15

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Published

2003-07-10

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Inventor

Varnavskaja O.A.Khvatova L.K.Lebedev N.A.Khlebnikov V.N.Fakhrutdinov B.R.Safin D.Kh.Chebareva A.I.Shepelin V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Institut Po Neftepromyslovoj Khimii"

ETHYLENEDIAMINE-BASED ETHYLENE OXIDE/PROPYLENE OXIDE BLOCK COPOLYMER AS DEMULSIFIER FOR WATER-OIL EMULSION POSSESSING CORROSION-PROTECTION EFFECT, AND DEMULSIFIER BASED THEREON Russian patent published in 2003 - IPC

Abstract RU 2208020 C2

FIELD: crude oil treatment. SUBSTANCE: block copolymer has molecular weight 8000-15000 and contains 20-70% ethylene oxide units and 30-80% propylene oxide units. Demulsifier (containing solvent) is effective within a wide temperature range for destroying persistent water-oil emulsions and simultaneously exhibits protective effect against corrosion of oil-field equipment. EFFECT: increased demulsifying efficiency and provided anticorrosion effect. 2 cl, 2 tbl, 16 ex

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RU 2 208 020 C2

Authors

Varnavskaja O.A.

Khvatova L.K.

Lebedev N.A.

Khlebnikov V.N.

Fakhrutdinov B.R.

Safin D.Kh.

Chebareva A.I.

Shepelin V.A.

Dates

2003-07-10—Published

2001-02-15—Filed

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