دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

The value of the pressure on the bit multiply the rate of drilling in rotary drilling.

n: the property by which a fluid in motion offers resistance to shear and flow. Usually expressed as newton seconds/metre.

the measure of a fluid’s ability to resist flow without regards to its density. It is defined as a fluid’s kinematic viscosity multiplied by its density.

n: The treating chemical
loss during manufacturing or purifying drilling fluid agent according to the principle of absorption.

n: A method used to survey the inclination according to the principle that the fluid level is horizontal and the hydrofluoric acid can erode the glass.

n: A method used to survey the inclination according to the principle that the fluid level is horizontal and the hydrofluoric acid can erode the glass.

n: a sub run below a dual or triple packer to permit the correct space-out. See space-out.

bacteria that require oxygen to survive and multiply.

n: the number of turns in a coil multiplied by the number of amperes of current flowing through the coil.

bacteria that can survive and multiply without oxygen.

n: a gas measurement device that consists of a mutiple-ported Pitot tube installed inside a pipe through which gas is flowing;it is installed perpendicular to the flow of gas. The length of the annubar is equal to the diameter of the pipe in which it is installed. An annubar senses the difference between total flowing pressure and static pressure;gas volume is calculated from this difference. See Pitot tube.

a gas flow rate measurement device using Pitot tubes. Common in pipelines.