دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

water jetting at pressures over 25,000 psi.

n: (ULCC) a supertanker whose capacity is 500,000 dead- weight tons or more. Compare very large crude carrier.

very high frequency sonic signals used in measuring distance, surface imperfections or even metal thicknesses.

n: A kind of cleaning bottom hole ways that using ultrasonic in cleaning fluid.

n pi: corrosionmonitoring devices that transmit ultrasonic waves through production structures to locate discontinuities in metal structure, which indicate corrosion damage.

n: Schlumburger wireline tool that uses a single rotating ulrtasonic sensor to provide a complete image of the casing ,cement,and annulus .Can show casing damage/corrosion ,cement quality and channeling.

n: flowmeter used (1) to measure transit times of an acoustic pressure wave with and against the flow (time- of-flight-type meter) to infer pipeline velocity or (2) to reflect sonic energy from scatterers in fluid back to a receiver (Doppler-type meter) to measure volumetric flow rate.

a process using ultraviolet (UV) light to kill bacteria and viruses.

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.