Viscous oleaginous fluids and methods of drilling and...

Details Viscous oleaginous fluids and methods of drilling and... Viscous oleaginous fluids and methods of drilling and...

2004-11-22

2009-02-17

Peng, Kuo-Liang (Department: 1796)

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

C507S140000

Reexamination Certificate

active

07491681

ABSTRACT:
The invention provides (1) a method of increasing the thermal stability of an oleaginous liquid containing a high surface area silica viscosifier therein by adding a water soluble biopolymer thereto; and (2) a drilling, completion, workover, or well servicing fluid comprising an oleaginous liquid, a water soluble biopolymer, and a high surface area silica viscosifier. The method and fluid may optionally contain a low molecular weight polar additive preferably having a molecular weight less than about 400 and containing one or more polar groups per molecule selected from the group consisting of hydroxyl, amino, and mixtures thereof.

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Simetric, http://www.simetric.co.uk/si—liquids.htm, Oct. 2004.

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