Estimation of average reservoir pressure - MDH method

Input(s)

$\mathrm{p}_{\mathrm{ws}}$: Shut-In Pressure $(\mathrm{psi})$

pDMDH: MDH Pressure (dimensionless)

m: Semi-log Straight Line of the MDH Plot (psi/cycle)

Output(s)

$\mathrm{P}_{\mathrm{r}}$: Average Reservoir Pressure (psi)

Formula(s)

$$ \mathrm{P}_{\mathrm{r}}=\mathrm{p}_{\mathrm{ws}}+\mathrm{m} * \frac{\mathrm{p}_{\mathrm{DMDH}}}{1.1513} $$

Reference(s)

Ahmed, T., McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter: 1, Page: 59