Van Everdingen-Hurst Aquifer Functions
Van Everdingen-Hurst unsteady-state influx from dimensionless time and radius solutions.
5 functions
PO.MBE.Aq.VEH.tD(K, t, porosity, Uw, ct, rr)
Calculates dimensionless time for VEH aquifer, {1}. tD = 0.00634*k*t / (phi*muw*ct*rr^2).
PO.MBE.Aq.VEH.reD(ra, rr)
Calculates dimensionless radius for VEH aquifer, {1}. reD = ra / rr.
PO.MBE.Aq.VEH.U(porosity, ct, h, rr, theta)
Calculates aquifer constant for VEH model, [bbl/psi]. U = 1.119 * phi * ct * h * rr^2 * (theta/360).
PO.MBE.Aq.VEH.WdInf(tD)
Calculates dimensionless influx for infinite aquifer (VEH), {1}. Uses Edwardson correlation.
PO.MBE.Aq.VEH.WdFin(tD, reD)
Calculates dimensionless influx for finite aquifer (VEH), {1}.