Pseudo-pressure....What is that?

THEORY & FORMULAE

Real Gas Pseudo-Pressure

The concept of pseudo-pressure or real gas potential is used commonly in gas well deliverability and transient well tests.

The pseudo-pressure is defined by the following integral equation:

Where:

ψ(p) = pseudo-pressure at pressure p, psi2/cp

pb= an arbitrary base pressure (< p), psia

μ = viscosity of gas, cp

z = gas compressibility factor

(Note that μ and z are both functions of pressure. μ increases with pressure. z takes a value of 1 at zero pressure, then initially drops as pressure increases and eventually rises at higher pressures.)

Numerical integration is performed here using the trapeziodal rule with pb = 0.

Pseudo Pressure

Oh boy! I couldn't possibly imagine what goes on in their tiny minds. It is possible they might lack the basic social skills to form a relationship, therefore take out their frustrations upon everyone else. They are as free as everyone else here to add their five penneth to my questions, but they will certainly never penetrate or invade my feelings. Indiference is the appropriate response to such immature behaviour. A reaction only encourages or endorses it.