REAGENT FOR TREATING DRILLING FLUID Russian patent published in 2000 - IPC

Abstract RU 2144936 C1

FIELD: oil and gas production. SUBSTANCE: reagent contains 40 to 90% of extrusion maize starch or modified mixture of maize and potato starches and 10 to 60% of sodium carbonate. EFFECT: reduced filtration index and increased carrying capacity and simultaneously decreased consumption of starch. 3 tbl

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RU 2 144 936 C1

Authors

Andreson B.A.

Bochkarev G.P.

Kudrjashov A.S.

Kudrjashov S.A.

Dates

2000-01-27—Published

1997-08-22—Filed