DRILLING MUD Russian patent published in 1996 - IPC

Abstract SU 1678048 A1

FIELD: compositions for drilling boreholes. SUBSTANCE: drilling mud has (in wt %): clay 10-30; lime or gypsum or calcium chloride 0.2-1.5; caustic soda 0.1-0.3; thinner 0.5-2.0; modified carboxymethylcellulose trade-named Karboaluminat 0.4-1.5; water to the balance. As a thinner FKhAS, KhLS, SSB, and other reagents may be used. EFFECT: increased inhibiting properties and performance. 3 tbl

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SU 1 678 048 A1

Authors

Galjan D.A.

Chernjakhovskij A.I.

Romanov V.V.

Chadina N.P.

Bich F.F.

Obeshchenko G.K.

Dates

1996-11-10—Published

1989-09-05—Filed