Reservoir EngineeringWaterflooding and EOR
Hot-Water Heated-Zone Area Growth Rate Formula
Hot-Water Heated-Zone Area Growth Rate calculates heated-zone area growth rate for waterflooding and eor workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (q, T_j, f_w, phi, h) 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, A_dot equals 2.393857 ft^2/d.
qbbl/d
800
T_jK
450
f_wfraction
0.65
phifraction
0.28
hft
45
Inputs
q
bbl/dReservoir-Condition Flow Rate
T_j
KSpecific-Layer Temperature
f_w
fractionHot-Flood Water Fractional Flow
phi
fractionPorosity
h
ftReservoir Height
Outputs
A_dot
ft^2/d
Heated-Zone Area Growth Rate
q
bbl/d
Reservoir-Condition Flow Rate
f_w
fraction
Hot-Flood Water Fractional Flow
h
ft
Reservoir Height
Source and review
reviewedThermal Recovery, Prats, M. (1986)
Prats, M. 1986. Thermal Recovery. Society of Petroleum Engineers, Page 45.
Source