Incremental Advances Maintain Momentum Of Fluids Technology By Ryen Caenn LAGUNA BEACH, CA.-A number of cutting-edge drilling fluid technologies have been introduced in recent years, including advanced water- based and nonaqueous-based systems, as well as novel solutions to enhance wellbore stability and prevent lost circulation. Drilling fluids providers continue to develop technologies and practices to help operators optimize drilling performance, mitigate environmental impacts, and streamline drilling economics. New fluid chemistries and additives- including formulations purpose-engineered for long horizontal and shale wells-closed-loop designs, regulatory requirements, total solids and waste control, and automated mud system management on the well site remain among the key drivers of research and development efforts. Cost control continues to be a major criterion in all operational decisions, and fluid system selection is no exception. 66 THE AMERICAN OIL & GAS REPORTER