Reservoir EngineeringThermal Gradients
Reservoir Heat Required for Temperature Increase Formula
Reservoir Heat Required for Temperature Increase calculates heat required for thermal gradients workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (V_r, M_r, T_i, T_f) are known and the assumptions behind the cited thermal gradients 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 equals 2,496,739,410 BTU.
V_racre*ft
10
M_rBTU/(ft3*deg F)
38.2115
T_ideg F
150
T_fdeg F
300
Inputs
V_r
acre*ftReservoir Volume
M_r
BTU/(ft3*deg F)Volumetric Heat Capacity of Reservoir
T_i
deg FInitial Reservoir Temperature
T_f
deg FFinal Reservoir Temperature
Outputs
Q
BTU
Heat Required
V_r
acre*ft
Reservoir Volume
M_r
BTU/(ft3*deg F)
Volumetric Heat Capacity of Reservoir
T_f
deg F
Final Reservoir Temperature
T_i
deg F
Initial Reservoir Temperature
Source and review
reviewedThermal Recovery, Prats, M. (1986)
Prats, M. 1986. Thermal Recovery, Society of Petroleum Engineers, Chapter 5, Page 41.
source conflict
Source