PKN Model Functions
Perkins-Kern-Nordgren width, length, net pressure and volume, with and without leakoff.
8 functions
PO.FRAC.PKN.Width(Q, Ul, L, E)
Perkins-Kern-Nordgren (PKN) fracture width at wellbore, [inches].
PO.FRAC.PKN.Width.NoLoss(Q, Ul, h, G, nu, t)
Perkins-Kern-Nordgren (PKN) fracture width without fluid loss, [inches].
PO.FRAC.PKN.Width.Leakoff(Q, Ul, h, G, nu, C, t)
Perkins-Kern-Nordgren (PKN) fracture width with Carter leakoff (large time), [inches].
PO.FRAC.PKN.Length.NoLoss(Q, Ul, h, G, nu, t)
Perkins-Kern-Nordgren (PKN) fracture half-length without fluid loss, [ft].
PO.FRAC.PKN.Length.Leakoff(Q, h, C, t)
Perkins-Kern-Nordgren (PKN) fracture half-length with Carter leakoff, [ft].
PO.FRAC.PKN.Pnet(w, h, E, nu)
Perkins-Kern-Nordgren (PKN) net fracturing pressure, [psi].
PO.FRAC.PKN.Volume(w, h, L)
Perkins-Kern-Nordgren (PKN) fracture volume (one wing), [bbl].
PO.FRAC.PKN.Wavg(wMax)
Perkins-Kern-Nordgren (PKN) average fracture width, [inches].