LIQUID FOR STRENGTHENING OF UNSTABLE ROCKS AT HOLE DRILLING Russian patent published in 1994 - IPC

Abstract RU 2015155 C1

FIELD: hole drilling. SUBSTANCE: liquid has, mas. p.: caustic magnesite 100; magnesium chloride (bischofite) 59.15-56.25; ferrous chloride (crystal hydrate) 0.27-0.45; ethylsilicate 2.5-5.0, and water 34.50-33.76. EFFECT: enhanced quality of liquid. 2 tbl

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RU 2 015 155 C1

Authors

Makeev N.M.

Kasatkina N.N.

Permjakov A.P.

Andreev V.K.

P'Jankov V.A.

Dates

1994-06-30—Published

1991-11-15—Filed