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2 114 136

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IPC

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Application

95108647/04, 1995-05-26

(22)

Actual filing date

1995-05-26

(45)

Published

1998-06-27

(72)

Inventor

Emkov A.A.Gumerov A.G.Kalimullin A.A.Karamyshev V.G.Semenov B.D.

(73)

Holder

Institut Problem Transporta Ehnergoresursov

GEL-LIKE PISTON COMPOSITION FOR CLEANING INTERNAL SPACE OF PIPELINE Russian patent published in 1998 - IPC

Abstract RU 2114136 C1

FIELD: pipeline maintenance. SUBSTANCE: composition is designed to form gel-like piston (separator) when successively pumping through different-type petroleum derivatives and also when cleaning main and oil-field pipelines. Such composition contains water-soluble ethylenediamine-based alkylene oxide block copolymer and cross- linking agent Ц dimethyldiallylammonium chloride polymerization product at their volume ratio (1-1.5):1, respectively. The thus obtained gel has sufficiently stable and strong structure well remembering shape of the pipe cross-section. EFFECT: simplified and automated operation. 1 tbl

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RU 2 114 136 C1

Authors

Emkov A.A.

Gumerov A.G.

Kalimullin A.A.

Karamyshev V.G.

Semenov B.D.

Dates

1998-06-27—Published

1995-05-26—Filed

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