PKN Model LAMBDAs
Perkins-Kern-Nordgren width, length, net pressure and volume, with and without leakoff.
8 lambdas
PO.FRAC.PKN.Width.SI(Q, Ul, L, E)
Perkins-Kern-Nordgren (PKN) fracture width at wellbore, [cm] (SI units).
PO.FRAC.PKN.Width.NoLoss.SI(Q, Ul, h, G, nu, t)
Perkins-Kern-Nordgren (PKN) fracture width without fluid loss, [cm] (SI units).
PO.FRAC.PKN.Width.Leakoff.SI(Q, Ul, h, G, nu, C, t)
Perkins-Kern-Nordgren (PKN) fracture width with Carter leakoff (large time), [cm] (SI units).
PO.FRAC.PKN.Length.NoLoss.SI(Q, Ul, h, G, nu, t)
Perkins-Kern-Nordgren (PKN) fracture half-length without fluid loss, [m] (SI units).
PO.FRAC.PKN.Length.Leakoff.SI(Q, h, C, t)
Perkins-Kern-Nordgren (PKN) fracture half-length with Carter leakoff, [m] (SI units).
PO.FRAC.PKN.Pnet.SI(w, h, E, nu)
Perkins-Kern-Nordgren (PKN) net fracturing pressure, [kPa] (SI units).
PO.FRAC.PKN.Volume.SI(w, h, L)
Perkins-Kern-Nordgren (PKN) fracture volume (one wing), [m3] (SI units).
PO.FRAC.PKN.Wavg.SI(wMax)
Perkins-Kern-Nordgren (PKN) average fracture width, [cm] (SI units).