دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the difference between inflow and outflow of funds over a period of time. Cash flow can be positive (profit) or negative (loss).

n: Efflux velocity decreases continuously due to diffusional effect and resistance of submerged fluid. Decreasing coefficient of jet velocity is the ratio of the circulation velocity at any point of center line of jet and circulation velocity at outflow poin

n: the rate that causes the sum of the discounted outflows and inflows of funds to equal the net cash outlay in year zero of a project. It is used in evaluating exploration investments.

n: 1. an element of a level-control assembly designed to operate while partially or completely submerged in a liquid the level of which is controlled by the assembly. The buoyancy of the liquid activates the float and the control valve to which it is linked and modifies the rate of the inflow or the outflow of the vessel to maintain a preset level. 2. a drill pipe float. 3. a long flat-bed semi-trailer. A float collar also prevents backflow of cement during a cementing operation.

n: the maximum permitted working pressure at outflow point of mud pump.

n: the flow system of a well between the bottom of the hole and the storage tanks.

n: the outflow mouth of lower solids content in hydraulic whirling current separator and centrifuge.

n: each point flow speed of jet initial segment center equels to the flow speed of outflow point, the segment center of which we called potential core of jet.