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2 169 754

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C1

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IPC

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Application

2000125513/03, 2000-10-10

(24)

Start date

2000-10-10

(22)

Actual filing date

2000-10-10

(45)

Published

2001-06-27

(72)

Inventor

Akchurin Kh.I.Nigmatullina A.G.Chezlova A.V.Sergeev V.A.Komkova L.P.

(73)

Holder

Gosudarstvennoe Nauchno-Proizvodstvennoe Predprijatie

METHOD OF PREPARING ACRYLIC REAGENT (GIVPAN) Russian patent published in 2001 - IPC

Abstract RU 2169754 C1

FIELD: drilling fluids. SUBSTANCE: invention, in particular, relates to preparing drilling fluids and process fluids on oil and gas production area. Acrylic reagent is prepared by hydrolysis of polyacrylonitrile stock (5.0-10.0%) with alkali (3.5-6.0%) preliminarily dissolved in water to give pH 12-14, mixing for the first 1.5 h being carried out at 80 C and further at 95-100 C. EFFECT: enhanced effect on filtration and structural and mechanical properties of fluid and utilized polyacrylonitrile fiber production waste. 3 tbl

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RU 2 169 754 C1

Authors

Akchurin Kh.I.

Nigmatullina A.G.

Chezlova A.V.

Sergeev V.A.

Komkova L.P.

Dates

2001-06-27—Published

2000-10-10—Filed

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