دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

viscosity.

n: viscosity breaking, i.e., economically reducing the viscosity of the light end of a heavy fraction.

n: a device used to determine the viscosity of a substance. Also called a viscosimeter.

n: Commonly called a V-G meter.The instrument is a rotational-type device powered by means of an electric motor or handcrank and is used to determine the apparent viscosity,plastic viscosity,yield point and gel strengths of drilling fluids.The usual speed

n: The matter can increase the viscosity and shearing force of drilling fluids.


any material that increases the viscosity of a fluid.

n: see viscometer.

n: Commonly called a V-G meter.The instrument is a rotational-type device powered by means of an electric motor or handcrank and is used to determine the apparent viscosity,plastic viscosity,yield point and gel strengths of drilling fluids.The usual speed

n: a measure of the resistance of a fluid to flow. Resistance is brought about by the internal friction resulting from the combined effects of cohesion and adhesion. The viscosity of petroleum products is commonly expressed in terms of the time required for a specific volume of the liquid to flow through a capillary tube of a specific size at a given temperature.

n: A property of fluids and slurries that indicates their resistance to flow, defined as the ratio of shear stress to shear rate.

a measurement of the internal resistance of a fluid to flow against itself. Expressed as the ratio of shear stress to shear rate.

n: an index used to establish the tendency of an oil to become less viscous at increasing temperatures. Reference oils are a highly paraffinic Pennsylvania oil, rated 100, and a Gulf Coast naphthenic oil, rated O.

a measure of shale maturity based on whether it has generated hydrocarbons. The value is in units of reflectance, in % Ro with values of 0 to >3.

velocity induced vibration.

abbr: very large crude carrier.

very large crude carrier: 200,000 to 350,000 dwt of crude oil.