دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: a kind of solids control technology being in phase of experiment ,namely setting an inverse swirler making the fluid in the drill pipe flow into the container in a tangent line

n: a length of straight pipe containing straightening vanes or the equivalent and installed at the inlet of a flowmeter to eliminate swirl from the liquid from entering the meter and causing measurement errors.

n: see swirl.

n: A kind of drill fluid mixer consist of feeding hopper and inside and outside swirler.

n pi: bundles of smalldiameter tubing tack-welded together in a concentric pattern and placed in the upstream section of an orifice-meter run for the purpose of reducing considerably the amount of straight pipe required upstream of the orifice. They eliminate swirls and crosscurrents set up by the pipe fittings and valves preceding the meter tube.

n: a qualitative term describing tangential motions of liquid flow in a pipe or tube.

n: A kind of casing guide shoe,which can make cement slurry ascent at the shape of toroidal swirl after it flowing out.

n: a baffle installed at or near the outlet connection of a liquid storage container to prevent the formation of a vortex and air/vapor entrainment in the liquid. Also called vortex eliminator.

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.

n: The phenonmenon that swirlers bottom flow in foggy when it work orderly.