دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n pi: a pressure-sensing element of cylindrical shape whose walls contain convolutions that cause the length of the bellows to change when pressure is applied. bellows meter n: see orifice meter.

a time that reflects the slide time in which the pipe is not rotating and drilling.

n: a flexible band or cord connecting and wrapping around each of two or more pulleys to transmit power or impart motion.

added friction in a deviated well as wireline or coil rubs against the top of the deviated section as the tube or cable is pulled out of a well.

n: a protective grill or cover for a belt and pulleys.

n: a marking on the pin and the box of a tool joint that gauges the amount of metal that can be safely removed when

a selected reference point for comparing performance.

n: the price per barrel of certain crude oils such as West Texas intermediate and North Sea Brent, which serves as an indicator of worldwide oil prices.

radius of curvature of flexible pie measured to the pipe centerline.