دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: (NSW) the total weight of all petroleum liquids, excluding S&W and free water, determined by applying the appropriate weight conversion factor to the net standard volume.

n: the indicated volume corrected for meter errors, for volume differences due to metering pressure and temperature differing from reference conditions, and for S&W content, where applicable.

n: the total volume of liquid in a tank after adjustments have been included for S& W content, temperature, and density. Compare gross volume.

n: a system of electronic and mechanical devices that automatically determines the amount of oil in a water and oil emulsion. The water and oil do not have to be separated to measure the volume of the oil.

n: the amount. or volume, of oil in the produced fluids of a well or wells, usually as measured by a net-oil computer.

n: (NSPS) CAA standards that set forth allowable emissions for new major pollution sources and major modifications to existing sources. NSPS can extend to pollutants not included in NAAQS and NESHAP and may include VOCs and hydrogen sulphide.

n: (N) an SI unit that expresses force. One newton equals 1 metre-kilogram per second per second (mokg/s2),which is the force required to move 1 kilogram a distance of 1 metre at a velocity of 1 second squared.

n: a fluid in which the viscosity remains constant for all rates of shear if constant conditions of temperature and pressure are maintained. Most drilling fluids behave as non-Newtonian fluids, as their viscosity is not constant but varies with the rate of shear.

n: the basic and wsimplest fluids from the standpoint of viscosity consideration in which the shear force is directly proportional to the shear rate. These fluids will immediately begine to move when a pressure or force in excess of zero is applied. examples

a fluid whose shear force and response is directly proportional to shear rate. Yield point is zero.

natural gas vehicle.

normal moveout offset. Difference in arrival times of reflected signals at different detectors caused by source variance and detector separations.