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.