Reservoir EngineeringWaterflooding and EOR
Combustion Front Advancement Rate Formula
Combustion Front Advancement Rate calculates combustion-front advancement rate for waterflooding and eor workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (E_O, u_a, a_r) are known and the assumptions behind the cited waterflooding and eor 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, v_b equals 0.16 ft/day.
E_Ofraction
0.8
u_aMscf/ft^2-day
0.004
a_rMscf/ft^3
0.02
Inputs
E_O
fractionOxygen consumption efficiency
u_a
Mscf/ft^2-dayAir flux
a_r
Mscf/ft^3Air requirement
Outputs
v_b
ft/day
Combustion-front advancement rate
E_O
fraction
Oxygen consumption efficiency
u_a
Mscf/ft^2-day
Air flux
a_r
Mscf/ft^3
Air requirement
Source and review
reviewedThermal Recovery Monograph Vol. 7, Prats, M. (1986)
Prats, M. 1986. Thermal Recovery Monograph Vol. 7, Society of Petroleum Engineers, Houston, Page 100.
Source