Polyamide emulsifier based on polyamines and fatty acid/carboxylic acid for oil based drilling fluid applications

摘要

The present invention generally relates to emulsifiers for oil-based drilling fluids and muds comprising an emulsifierbased on the polyamides derived from fattyacid/carboxylic acidand optionally alkoxylated polyamines.The invention alsorelates to oil or synthetic based drilling fluids comprising the emulsifiers of the invention and todrilling methods utilizing same.