BIOPOLYMER DRILLING MUD Russian patent published in 2004 - IPC

Abstract RU 2236429 C1

FIELD: oil and gas production.

SUBSTANCE: invention relates to clay-free drilling fluids used for flushing out holes under drilling and exposing producing formations by means of vertical, deviating, or horizontal hole section. Water and xanthane biopolymer-based drilling mud containing humate reagent is characterized by, in particular, containing 0.3-0.5% of Flo-Vis as xanthane biopolymer, 10.5-15.0% of powdered coal-alkali reagent, and water.

EFFECT: decreased number of components, increased temperature resistance, simplified preparation procedure and chemical aftertreatment, and reduced expenses on the whole without deterioration in rheological and filtration characteristics.

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RU 2 236 429 C1

Authors

Angelopulo O.K.

Krylov V.I.

Legeza A.S.

Dates

2004-09-20—Published

2002-12-26—Filed