Silicate drilling fluid composition containing lubricating...

Details Silicate drilling fluid composition containing lubricating... Silicate drilling fluid composition containing lubricating...

2008-12-08

2010-11-30

Kugel, Timothy J. (Department: 1796)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C175S065000, C507S120000, C507S135000

Reexamination Certificate

active

07842651

ABSTRACT:
The present disclosure relates to the compositions of a water-based silicate drilling fluid comprising: (1) alkali metal silicates; (2) cationic polyacrylamide; (3) a lubricant composition; and (4) other conventional drilling fluid additives. The lubricant composition comprises a lubricating effective amount of a carrier oil and one or more lubricants selected from lecithins, sulfurized vegetable and/or lard oils or modified castor oil.

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Canter, N., “Special Report: Trends in extreme pressure additives”, Tribology & Lubrication Technology, Sep. 2007, pp. 10-17.

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