Effects of Reservoir Boundary Conditions, Drainage Shape, and Well Location on Productivity of a Vertical Well

Table 1

Oil field units for the parameters of reservoir, wellbore, and fluid properties.

Parameter	Oil field unit
Formation volume factor, B	bbl/STB
Pay zone thickness, h	ft
Permeability, k	mD
Pressure, P	psi
Productivity index, PI	STB/day/psi
Well flow rate,	STB/day
Off-center (off-vertex) distance, R0	ft
Wellbore radius,	ft
Drainage radius, Re	ft
Length of rectangular reservoir, Xe	ft
Width of rectangular reservoir, Ye	ft
Oil viscosity, μ	cp