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2 186 083

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IPC

(21) (22)

Application

2000118633/03, 2000-07-12

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Start date

2000-07-12

(22)

Actual filing date

2000-07-12

(45)

Published

2002-07-27

(72)

Inventor

Krylov G.V.Shtol' V.F.Kashkarov N.G.Konovalov E.A.Bondar' V.A.Verkhovskaja N.N.Grosheva T.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

COMPOSITION REAGENT FOR DRILLING MUDS Russian patent published in 2002 - IPC

Abstract RU 2186083 C2

FIELD: well drilling, particularly, reagents for regulation of drilling mud properties. SUBSTANCE: composition reagent for drilling muds includes ethyl siliconate and additional carboxymethyloxyethyl cellulose with the following ratio of components, mas.%: carboxymethyloxyethyl cellulose, 50-65; sodium ethyl siliconate, 35-50. EFFECT: reagent with multifunctional properties such as heat resistance, stability to polyvalent filtration-reduction cations, improved lubricating and wear-resistant properties. 5 tbl

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RU 2 186 083 C2

Authors

Krylov G.V.

Shtol' V.F.

Kashkarov N.G.

Konovalov E.A.

Bondar' V.A.

Verkhovskaja N.N.

Grosheva T.A.

Dates

2002-07-27—Published

2000-07-12—Filed