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2 086 600

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C1

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IPC

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Application

95106166/03, 1995-04-20

(22)

Actual filing date

1995-04-20

(45)

Published

1997-08-10

(72)

Inventor

Bikchantaeva N.V.Koltysheva T.N.Aleshkina I.V.Monakhova N.V.Vinogradov E.A.Smirnov V.V.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Po Neftepromyslovoj Khimii

COMPOSITION FOR PREVENTING DEPOSITS IN OIL FIELD EQUIPMENT Russian patent published in 1997 - IPC

Abstract RU 2086600 C1

FIELD: petroleum production, more particularly prevention of mixed deposits comprising organic and inorganic deposits. SUBSTANCE: composition comprises, wt.-%: oxyethylene diphosphonic acid, 4.5-5.0; ethylene oxide to ethylene diamide addition product, 5.0-7.0; bis(alkyl - polyoxyethylene) phosphate of general formula: [CnH2n+1O(C2H4O)m]2POOH wherein n=8-10 and m= 6, 35.0-39.0; and aliphatic alcohol, the balance. EFFECT: improved properties. 3 tbl

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RU 2 086 600 C1

Authors

Bikchantaeva N.V.

Koltysheva T.N.

Aleshkina I.V.

Monakhova N.V.

Vinogradov E.A.

Smirnov V.V.

Dates

1997-08-10—Published

1995-04-20—Filed

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