PROCESS FOR PREPARING REAGENT SUCH AS DRILLING MUD STABILIZER Russian patent published in 1994 - IPC

Abstract RU 2021320 C1

FIELD: drilling of oil and gas wells. SUBSTANCE: polyacrylonitrile fiber is mixed with water, alkali and water-soluble metal chloride. The hydrolysis is then carried out at 96-98 C. The water soluble metal chloride is used in an amount of 1-15 % by weight of the polyacrylonitrile fiber. EFFECT: improved properties of the reagent. 2 tbl

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RU 2 021 320 C1

Authors

Tarkhanov Ja.I.

Lipkes M.I.

Gankin V.Eh.

Denisova L.P.

Fajnshtejn I.Z.

Karelina N.N.

Dates

1994-10-15—Published

1992-03-16—Filed