To find UR:

Petroleum Engineering Equations & Formulas

The Monte Carlo method

In estimating the ultimate recovery (UR) for an oil reservoir, one would need to use the following:

      UR = Area * thickness * (N/G) * Φ * So * (1/Bo) * RF

Where:

Φ is porosity
So is the oil saturation in the pore space
Bo is the formation volume factor of the oil
RF is the recovery factor



$$UR = area * thickness * \frac{N}{G} * \Phi * S_{o} * \frac{1}{B_{o}} * RF$$

Where:

• $\Phi$ is porosity
• $S_{o}$ is the oil saturation in the pore space
• $B_{o}$ is the formation volume factor of the oil
• $RF$ is the recovery factor