Pseudo-steady state productivity of horizontal Wells - Method 2

Input(s)

\(\mu_{o}\): Viscosity of Oil (cP)

\(B_{o}\): Oil Formation Volume \((\mathrm{RB} / \mathrm{STB})\)

\(A_{t}\): Horizontal Well Drainage Area in the Vertical Plane \(=2\) y_eh \(\left(\mathrm{ft}^{2}\right)\)

\(s_{R}\): Skin Factor Due to Partial Penetration of Horizontal Well (dimensionless)

\(x_{e}\): Half Length of the Short Side of the Rectangular Drainage Area (ft)

\(y_{e}\): Half Length of the Long Side of the Rectangular Drainage Area (ft)

\(y_{w}\): Distance from the Horizontal Well to the Closest Boundary in Y Direction (ft)

\(\mathrm{h}\): Thickness of Reservoir (ft)

\(k_{v}\): Vertical Permeability \((\mathrm{mD})\)

\(k_{y}\): Horizontal Permeability \((\mathrm{mD})\)

\(r_{w}\): Radius of Wellbore \((\mathrm{ft})\)

\(z_{w}\): Vertical Distance between Horizontal Well and Bottom Boundary of Reservoir (ft)

Output(s)

\(\operatorname{InC}_{h}\): A Constant Related to the Natural Logarithm of Shape Factor (dimensionless)

\(J_{h}\): Pseudo-steady State Productivity of Horizontal Wells (bbl/day/psi)

Formula(s)

Reference(s)

Joshi, S. D. 1991, Horizontal Well Technology. Tulsa, Oklahoma: PennWell Publishing Company. Chapter: 7, Page: 22 .