Hagoort and Hoogstra Tight Gas Compartment Flow Formula
Hagoort and Hoogstra Tight Gas Compartment Flow calculates gas flow rate between compartments for unconventional reservoirs workflows in reservoir engineering.
How engineers use this formula
Use this formula when the listed inputs (Gamma, P_1, P_2, mu_g_avg, B_g_avg) are known and the assumptions behind the cited unconventional reservoirs 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 464.285714 MSCF/day.
0.0001
3500
3000
0.02
0.005
Inputs
Gamma
dimensionless source factorTransmissibility Between Compartments
P_1
psiPressure in Compartment 1
P_2
psiPressure in Compartment 2
mu_g_avg
cPAverage Gas Viscosity
B_g_avg
MSCF/STBAverage Gas Formation Volume Factor
Outputs
Q
Gas Flow Rate Between Compartments
Gamma
Transmissibility Between Compartments
P_1
Pressure in Compartment 1
P_2
Pressure in Compartment 2
mu_g_avg
Average Gas Viscosity
B_g_avg
Average Gas Formation Volume Factor
Source and review
reviewedAdvanced Reservoir Engineering, Ahmed, T., McKinney, P.D. (2005)
Ahmed, T. and McKinney, P.D. 2005. Advanced Reservoir Engineering, Gulf Publishing of Elsevier, Chapter 3, Page 236.
Source