Steam Drive Heat Injection Rate from Boiler Feed Water Formula
Steam Drive Heat Injection Rate from Boiler Feed Water calculates heat injection rate for waterflooding and eor workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (w_i, C_w, T_i, T_a, f_sdh, L_hc) 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, Q_i equals 374,902,320 BTU/day.
1000
1
500
60
0.7
900
Inputs
w_i
bbl/dayBoiler feed water rate
C_w
BTU/lbm-FSpecific heat capacity of water
T_i
degFSteam injection temperature
T_a
degFAmbient temperature
f_sdh
fractionDownhole steam quality
L_hc
BTU/lbmLatent heat of condensation
Outputs
Q_i
Heat injection rate
w_i
Boiler feed water rate
C_w
Specific heat capacity of water
T_i
Steam injection temperature
T_a
Ambient temperature
f_sdh
Downhole steam quality
L_hc
Latent heat of condensation
Source and review
reviewedPrats, M. 1986. Thermal Recovery Monograph Vol. 7. Society of Petroleum Engineers, Page 76.
Source