# Bottomhole pressure in a static geothermal well

## Input(s)

$\rho$: Density $\left(\mathrm{lb} / \mathrm{ft}^{3}\right)$

D: Vertical Depth (ft)

$g$: Acceleration of Gravity $\left(\mathrm{m} / \mathrm{s}^{2}\right)$

$g_{c}$: Units Conversion Factor $\left(\mathrm{m} / \mathrm{s}^{2}\right)$

## Output(s)

$\frac{d p}{d D}$: Bottomhole Pressure in a Static Well $(\mathrm{psi} / \mathrm{ft})$

## Formula(s)

$\frac{\mathrm{dp}}{\mathrm{dD}}=\frac{\rho}{144} \cdot \frac{\mathrm{g}}{\mathrm{g}_{\mathrm{c}}}$## Reference(s)

Ramey Jr, H. J. (1981). Reservoir Engineering Assessment of Geothermal, Systems. Department of Petroleum Engineering, Stanford University. Page: 7.4.