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: 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. the means by which a machine is given motion or power, or by which power is transferred from one part of a machine to another.2. the energy of expanding gas, inflowing water, or other natural or artificial mechanisms that forces crude oil out of the reservoir formation and into the wellbore. v: to give motion or power.

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: see feed in.

(IPR) n: the relation between the midpoint pressure of the producing reservoir and the liquid inflow rate of a producing well.

the relationship between reservoir or pore pressure, flowing bottom hole pressure, and production rate. Can be calculated from reservoir properties (reservoir pressure, permeability, skin) or can be a curve fitted to experimental data from the well.

n: a productivity curve piotted when a well has two-phase flow. both oil and gas. based on well tests or a combination of computations and well tests. Also called IPR curve.

n: an intrusion of formation fluids into the borehole, i.e., a kick.

inflow.

slope of inflow performance relationship for injection. Bbl/psi or m3/bar.