دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

a relative permeability effect where condensate, usually hydrocarbon, drops out of the vapor phase around the wellbore when the pressure drops below the dew point in response to drawdown or depletion. Gas rates can be severely reduced by the permeability

n: the temperature and pressure at which a liquid begins to condense out of a gas. For example, if a constant pressure is held on a certain volume of gas but the temperature is reduced, a point is reached at which droplets of liquid condense out of the gas. That point is the dew point of the gas at that pressure. Similarly, if a constant temperature is maintained on a volume of gas but the pressure is increased, the point at which liquid begins to condense out is the dew point at that temperature. Compare bubble point.

the temperature at which liquids begin to condense from the vapor phase in a gas stream. (see also bubble point).

n: liquid that is at its boiling point or is in equilibrium with a vapor phase in its containing vessel.

n: a vapor phase and a liquid phase flow in the same pipeline.

n: the existence of a substance in the gaseous state.

n: the partition coefficient, usually designated as K, which is equivalent to y/xm, where y is the mole fraction of a given component in the vapor phase that is in equilibrium with x, the mole fraction of the same component in the liquid phase. K is a function of temperature, pressure, and composition of the particular system.

n: 1. the act or process of converting a substance into the vapor phase. 2. the state of substances in the vapor phase.

the water initially in vapor phase within a gas that condenses out when gas cools. Usually 1 to 2 bbls per million scf.