GROUTING COMPOUND FOR ISOLATION OF LOST CIRCULATION ZONES IN WELL DRILLING Russian patent published in 1994 - IPC

Abstract RU 2024734 C1

FIELD: well drilling. SUBSTANCE: grouting compound contains mas.part.: polyisoprene latex or butadiene-styrene-nitrilecarboxylate latex, or REKUPERATE latex 100 (in terms of dry matter), water-soluble salt of copolymer of methacrylic acid with methyl methacrylate (lacrys-20) 7-9; water 218.9-333.9. Introduced into latex is lacrys-20 in form of 10% aqueous solution (in terms of dry matter of latex). Compound is coagulated both in contact with water and in contact with oil. Grouting stone possesses high plastic strength. EFFECT: higher efficiency. 2 tbl

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RU 2 024 734 C1

Authors

Kuznetsov V.L.

Ljubitskaja G.A.

Kolesnik E.I.

Kazakova E.N.

Kurochkin B.M.

Lobanova V.N.

Dates

1994-12-15Published

1991-06-27Filed