Production EngineeringInjection Wells
Cumulative Hall Plot Pressure Integral Formula
Cumulative Hall Plot Pressure Integral calculates cumulative hall pressure integral for injection wells workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (H_prev, Delta_H) are known and the assumptions behind the cited injection wells relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, H equals 105,000 psi-day.
H_prevpsi-day
90000
Delta_Hpsi-day
15000
Inputs
H_prev
psi-dayPrevious Cumulative Hall Integral
Delta_H
psi-dayHall Pressure-Time Increment
Outputs
H
psi-day
Cumulative Hall Pressure Integral
H_prev
psi-day
Previous Cumulative Hall Integral
Delta_H
psi-day
Hall Pressure-Time Increment
Source and review
reviewedHarmony Enterprise Hall plot theory, pressure-integral y-axis and monthly pressure-integral calculation.
Source