LUBRICANT FOR WATER BASED DRILLING FLUID

The invention relates an additive composition for a drilling fluid, as well as a method of increasing the lubricity and reducing the coefficient of friction of a drilling fluid. The additive composition may further contain a sulfurized olefin and/or a metal dithiophosphate compound, which further en...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Mettath, Sashikumar, Chang, Zen-Yu
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates an additive composition for a drilling fluid, as well as a method of increasing the lubricity and reducing the coefficient of friction of a drilling fluid. The additive composition may further contain a sulfurized olefin and/or a metal dithiophosphate compound, which further enhances the lubricating effect.