Gas Material Balance Functions
p/z depletion analysis for gas reservoirs.
8 functions
PO.MBE.Gas.Pz(P, z)
Calculates p/z ratio for gas material balance analysis, [psi].
PO.MBE.Gas.ModPz(P, z, Pi, ce)
Calculates modified p/z for geopressured reservoirs, [psi]. Accounts for formation/water compressibility.
PO.MBE.Gas.OGIP(P, z, Pi, zi, Gp)
Estimates OGIP using standard p/z method, [scf]. Assumes volumetric depletion.
PO.MBE.Gas.ModOGIP(P, z, Pi, zi, Gp, ce)
Estimates OGIP using modified p/z for geopressured reservoirs, [scf].
PO.MBE.Gas.PredP(G, Gp, Pi, zi, z)
Predicts reservoir pressure at given cumulative production, [psi].
PO.MBE.Gas.PredGp(G, P, z, Pi, zi)
Predicts cumulative production at given reservoir pressure, [scf].
PO.MBE.Gas.RF(G, Gp)
Calculates recovery factor for a gas reservoir, [fraction 0-1].
PO.MBE.Gas.URF(Pi, zi, pa, za)
Calculates ultimate recovery factor based on abandonment pressure, [fraction 0-1].