NEW DRILLING FLUID ADDITIVES FROM PHARMACEUTICAL WASTE
In oil-based drilling fluid systems (OBM, for oil-based muds) the oil phase is the major source of contamination and hydrocarbon pollution is, by far, the main concern. However, the release and accumulation of mud additives in the environment may be deleterious on grounds of volume and/or concentration. This work presents a valorisation study of a waste from an antibiotic large-scale manufacture for preparing a new drilling fluid additive (loss reducing agent for OBM) with lower environmental impact. After product washing, heating, grinding and screening, a cationic surfactant was used to improve fluid stability and filtration properties. Our results show that : -According to drilling fluid requirements, the treatment of this pharmaceutical reject yields a product with good properties, i.e. satisfactory as far as stability, filtration and rheology are concerned. -The pre-treatment of those products (according to their original state and particle size, as well as the type and concentration of added surfactant) enhances additive quality and shows good compatibility in drilling fluid systems, -The substitution of this new product for conventional additives affords good drilling fluid stability under high pressure/high temperature conditions.
Drilling fluid valorization loss reducer surfactant pollution antibiotics
M. KHODJA J. P. CANSELIER J. DUPLAY M. KHODJA-SABER Z. KESSAISSIA
Sonatrach/Division Laboratoires, Boumerdès, Algeria Université de Toulouse ; INPT, UPS ; Laboratoire de Génie Chimique, Toulouse, France Laboratoire dHydrologie et Géochimie de Strasbourg, France Sonatrach/Division forage, Hydra, Algiers, Algeria Université des Sciences et Technologie Houari Boumediene, Algiers Algeria
国际会议
北京
英文
658-664
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）