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2 044 759

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C1

(51)

IPC

(21) (22)

Application

92010087/04, 1992-12-07

(22)

Actual filing date

1992-12-07

(45)

Published

1995-09-27

(72)

Inventor

Kozhevnikova V.N.Kostakov Ju.Ju.

(73)

Holder

Neftegazodobyvajushchee Upravlenie Proizvodstvennogo Ob"Edinenija

METHOD OF DESTRUCTION OF INTERMEDIATE EMULSION LAYER Russian patent published in 1995 - IPC

Abstract RU 2044759 C1

FIELD: petroleum industry. SUBSTANCE: intermediate emulsion layer formed in the process of petroleum preparation is heated up to temperature 40 C (not below). Then addition containing 0.1-0.8 wt.-% nitrilotrimethylphosphonic acid and up to 100 wt.-% inhibited hydrochloric acid at concentration 22-24 wt.-% (3-20 vol.) and nonionogenic demulsifier at concentration 70-200 g/t were added successively to the emulsion layer followed by settling. EFFECT: improved method of destruction. 1 tbl

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RU 2 044 759 C1

Authors

Kozhevnikova V.N.

Kostakov Ju.Ju.

Dates

1995-09-27—Published

1992-12-07—Filed

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