دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a flow regime in which the rising gas bubbles have enlarged.

n: 1.The predominant flow geometry reflected in a pressure-transient response that is most easily recognized in the log-log presentation of the pressure-change derivative. The most easily recognized flow regime is radial flow, which produces a constant or fl

flow condition (e.g., mist, slug, churn, etc.) of a multiphase process stream.

a flow regime where droplets of liquids are entrained in the gas flow.

a flow regime departing from the laminar flow region where Darcy flow is measurable. Generally turbulence.

n: a dimensionless number defined as Re =ruD/m Where D = inside diameter of the pipe u = mean flow velocity r = density of the fluid m= dynamic viscosity, all in consistent units.

n: A demensionless number,which be used to judge the flowing condition of the fluid .Its code is Re.



an experimental number used in fluid flow to predict the flow velocity at which the flow regime moves from laminar flow through a transition range and into turbulent flow. It is the dimensionless ratio of inertial forces to viscous forces in flowing fluid

n: A multiphase-fluid flow regime characterized by a series of liquid plugs (slugs) separated by a relatively large gas pockets. In vertical flow, the bubble is an axially symmetrical bullet shape that occupies almost the entire cross-sectional area of the t

flow of distinct volumes of gas and liquid, often signaling unstable behavior.

a flow regime in a highly deviated or horizontal well where the fluids are segregated by density.

n: the erratic, nonlinear flow of a fluid, caused by high velocity. Characterized by random eddying flow patterns superimposed on the general flow progressing in a given direction.

n: A type of fluid flow characterized by swirling or chaotic motion as the fluid moves along the flow path. This is a preferred flow regime for mud removal during primary cementing because it is perceived to result in better removal of mud, especially of mud

non laminar flow, usually above a Reynolds number of about 3000. The Blasius equation estimates the friction factor for NRe values less than 100,000 as fB = 0.0791 / NRe0.25.