Solids composition based on clay minerals and use thereof
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United States of America Patent
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Feb 15, 2000
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N/A
app pub date -
Jun 25, 1998
filing date -
Jun 28, 1997
priority date (Note) -
Expired
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Abstract
A solids composition based on clay minerals and consisting of a) 40-99.8 wt. % of a clay mineral with a reduced moisture content of .ltoreq.7 wt. %, b) 0.01-30 wt. % of a mixed metal hydroxide and c) 0.01-30 wt. % of a solid base, and if necessary other additives, is described. The solids composition of the invention is an easy-to-use thickening agent for water-based drilling fluids, and has a long-term stability of at least three months.
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