Method for separating drill fluid from oily drill cuttings slurries

摘要

The present invention provides a method for separating oily drill fluid from an oily drill cuttings slurry comprising oily drill fluid and drill cuttings. The method comprises destructively modifying at least a portion of the drill cuttings that are contacted by at least one cuttings-reactive chemical thereby disrupting attraction forces between the portion of the drill cuttings and the oily drill fluid and making it easier for mechanical cuttings treatment equipment to separate oily drill fluid from the oily drill cuttings slurry.