Earth boring – well treating – and oil field chemistry – Earth boring – Contains organic component
Patent
1990-06-01
1993-01-12
Geist, Gary L.
Earth boring, well treating, and oil field chemistry
Earth boring
Contains organic component
C09K 702
Patent
active
051790769
ABSTRACT:
A water-based fluid for use in the drilling of wells is disclosed. This fluid: is rheologically stable over a wide temperature range, from room temperature to at least about 475.degree. F., thus reducing drilling time in high temperature applications; typically necessitates minimal disposal rates in operation; is resistant to temperature-induced carbonate gellation; creates a thin filter cake; and combines the low toxicity of a water-based fluid with the performance stability of an oil-based fluid.
As further disclosed herein, this drilling fluid comprises a water-based colloidal suspension of certain readily available drilling fluid components, including clay, parenchymal cell cellulose ("PCC") and an inorganic salt.
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Exxon Production Research Company
Geist Gary L.
McLean Susan A.
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