Horizontal well productivity index under steady state flow. The Giger-Reiss-Jourdan method for well in an anisotropic reservoir, [STB/(d.psi)]

Excel Function Syntax

ProdIndexHorWellGRJ(L, Rw, Re, h, Kz, Kxy, Bl, Ul)

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Parameter Value Description
L Length of the horizontal part of the well, [ft]
Rw Wellbore radius, [ft]
Re Drainage radius of the horizontal well, [ft]
h Reservoir height, [ft]
Kz Vertical permeability, [mD]
Kxy Horizontal permeability, [mD]
Bl Liquid formation volume factor, [bbl/STB].
Ul Liquid viscosity, [cP]