APPLICATION OF N,N-DIALKYLAMIDES TO CONTROL THE FORMATION OFEMULSIONS OR SLUDGE DURING DRILLING OR WORKOVER OF PRODUCING OIL WELLS

摘要

New compositions are disclosed that are useful for the prevention of sludge or emulsions during the drilling or workover of producin g oil wells. These compositions are comprised of a N,N-dialkylamide of a fatt y acid, a hydrocarbon solvent for petroleum and a mutual oil/water solvent. Also taught and claimed is a method of preventing such s ludge or emulsion formation or of breaking the same afte r it is formed.