Blended drilling fluid thinner

Details Blended drilling fluid thinner Blended drilling fluid thinner

1992-11-16

1995-03-21

Geist, Gary

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

507107, 507108, 507119, 507206, 507207, 507208, 507224, 507925, C09K 702, E21B 4316

Patent

active

053995481

ABSTRACT:
A blended additive composition, which is useful for thinning aqueous drilling fluids, is disclosed. The composition includes a first component selected from the group including: a modified tannin, a modified lignite and sodium lignosulfonate; a second component being a polymer prepared from acrylic acid; and a third component being a metal compound selected from the group of metals including iron, tin, chromium, manganese, titanium, aluminum and zinc.

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Gray et al "Composition and Properties of Oil Well Drilling Fluids" Gulf Publishing Co, Houston, 1980, pp. 564-567; 570-576.

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