LOW-SILICATE DRILLING MUD Russian patent published in 1998 - IPC

Abstract RU 2112780 C1

FIELD: oil and gas production. SUBSTANCE: drilling mud contains, wt.-%: clay, 7-9; liquid glass, 2-5; polyacrylamide, 0.1-0.2; a hydrophobic colmatant, which, according to invention, is colophony-bitumen reagent, 0.5-2.0; and water, the balance. EFFECT: increased mudding properties of mud with simultaneously reduced content of liquid glass and polyacrylamide. 2 cl, 1 tbl

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RU 2 112 780 C1

Authors

Anisimov A.A.

Vorob'Eva N.M.

Zlotnikov G.P.

Gukasova N.M.

Dates

1998-06-10—Published

1995-10-10—Filed