Polyamide emulsifier based on polyamines and fatty acid/carboxylic acid for oil based drilling fluid applications
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United States of America Patent
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Jul 1, 2014
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Dec 15, 2011
app pub date -
May 12, 2009
filing date -
May 15, 2008
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Abstract
The present invention generally relates to emulsifiers for oil-based drilling fluids and muds comprising an emulsifier based on the polyamides derived from fatty acid/carboxylic acid and optionally alkoxylated polyamines. The invention also relates to oil or synthetic based drilling fluids comprising the emulsifiers of the invention and to drilling methods utilizing same.
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