@wikipedia


p(z) = p_0 + g \cdot \int_{z_0}^z \rho_B(z) dz

where

air pressure at surface

True Vertical Depth of a given location rock 

True Vertical Depth of a surface

Bulk Density


See Also


Petroleum Industry / Upstream / Subsurface E&P Disciplines / Rock Geomechanics / Geostatic Pressure