Pressure analysis - Surface pressure during drill stem test
Input(s)
\(\mathrm{h}\): Total Vertical Depth \((\mathrm{ft})\)
EMW: Equivalent Mud Weight for Formation Pressure (ppg)
SG: Oil Specific Gravity (fraction)
Output(s)
P: Hydrostatic Pressure (psi/bbl)
Formula(s)
\[
P=0.052 * h *(E M W-S G * 8.33)
\]
Reference(s)
Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 138.