دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a strong northerly wind that has different effects in various parts of the world.

n: 1 a passageway through jet bits that causes the drilling fluid to be ejected from the bit at high velocity. The jets of mud clear the bottom of the hole. Nozzles come in different sizes that can be interchanged on the bit to adjust the velocity with which the mud exits the bit. 2. the part of the fuel system of an engine that has small holes in it to permit fuel to enter the cylinder. Properly known as a fuel-injection nozzle, but also called a spray valve. The needle valve is directly above the nozzle.

n: a part that flows the fluid on the head of bit.

a shaped orifice for directing fluid flow.

n: The exit velocity of the drilling fluid after it accelerates through bit nozzles.

n: the exit viscosity of the drilling fluid after it accelerates through bit nozzles in high pressure drilling.

n: the nozzle that the flow speed of nuzzle axis changes with the interval that is a constant.

non return valve.

n: the joint of pipe that is marked by NC**, V--0, ****R.

n: the fuction that arrayes of a series of parameter that weigh the drilling value.

n pi: 1. values observed at temperatures other than the specified reference temperature. 2. hydrometer readings observed at temperatures other than the specified reference temperature.

n pi: those volumes of liquid or gas that are indicated by the register on the meter. Compare true volume.