Drilling EngineeringWell Control
Hydrostatic Pressure from Mud Weight Calculator
Enter mud weight in ppg and true vertical depth in feet. The calculator returns hydrostatic pressure in psi.
Formula reference
Hydrostatic pressure from mud weight calculates the pressure exerted by a drilling-fluid column at true vertical depth using the standard oilfield 0.052 conversion factor.
View formula, units, and sourceAssumptions
- Mud weight is uniform over the measured fluid column.
- Depth is true vertical depth, not measured depth.
- The 0.052 factor is used for ppg, ft, and psi field units.
Common mistakes
- Using measured depth instead of true vertical depth.
- Mixing SI and field units with the 0.052 constant.
- Applying the result without adding or subtracting surface pressure where required.