Drilling fluid and methods
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United States of America Patent
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Dec 25, 2012
Grant Date -
Nov 17, 2011
app pub date -
Jul 28, 2011
filing date -
Mar 9, 2007
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Abstract
A drilling fluid comprising: a non-ionic surfactant including at least one of a branched alcohol ethoxylate and a capped alcohol ethoxylate, a detergent builder and a viscosifier.
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