True wellbore storage coefficient (pressure build-up test)
Input(s)
\(A_{w b}\): Cross Sectional Area of Well Bore \(\left(\mathrm{ft}^{2}\right)\)
\(\rho_{w b}\): Density of Fluid in Well Bore \(\left(\mathrm{lbm} / \mathrm{ft}^{3}\right)\)
Output(s)
C: Wellbore Storage Coefficient (BBL/PSI)
Formula(s)
\[
C=25.65 * \frac{A_{w b}}{\rho_{w b}}
\]
Reference(s)
Lee, J., Rollins, J. B., & Spivey, J. P. (2003). Pressure Transient Testing (Vol. 9). Richardson, Texas: Society of Petroleum Engineers, Page: 105.