Emulsifiers For Drilling Fluids
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United States of America Patent
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Issued Date -
Sep 20, 2007
app pub date -
Oct 15, 2004
filing date -
Oct 24, 2003
priority date (Note) -
Abandoned
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Abstract
The invention relates to use of surfactant mixtures in drilling fluids, the mixtures are produced by reacting an aqueous solution of at least one alkyl oligoglycoside and/or alkenyl oligoglycoside with an omega haloacid, or its salts or esters in the presence of an alkali. The mixtures are suitable for use as emulsifiers for invert drilling-fluid systems and improve the filtration characteristics of the systems.
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