Bio-based drilling fluids
Bio-based drilling-fluid additives — fermentation xanthan and scleroglucan viscosifiers, cellulosic CMC/PAC and modified-starch fluid-loss control, and vegetable-oil ester base fluids — that replace synthetic polymers and mineral-oil base in water-based and invert-emulsion drilling muds while cutting discharge toxicity.
polymers-materials
7 min