دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: light waves shorter than the visible blue violet waves of the spectrum. Crude oil, colored distillates, residuum, a few drilling fluid additives, and certain minerals and chemicals fluoresce in the presence of ultraviolet light. These sub- stances, when present in mud, may cause the mud to fluoresce.