Five-spot geothermal production/injection
Description
This example is from the SPE-10509-PA paper: Pruess K. et al. 1985 A practical method for modelling fluid and heat flow
in fractures porous media. SPE J. 25(1): 14-26. DOI:10.2118/10509-PA. The 2D areal problem concerns non-isothermal flow
of water and steam in fractured reservoir. The fluid transport occurs only through the fractures, whereas the matrix
blocks are impermeable. At the initial moment of time the reservoir is saturated with hot water at 300 C and at high
pressure above water boiling pressure. The fluid extraction though the production wells results in the pressure drop
down and water boiling. Cold water is reinjected in the reservoir in order to maintain the reservoir pressure. This
scenario can be interpreted as geothermal energy production using wells placed in a regular configuration. The problem
is simulated with multiple interacting continua approach. Every matrix block is partitioned in four blocks for a more
accurate modelling of the heat sweep. The problem is simulated for two different fractures spacing. The temperature
distribution over a straight line between an injection and production well is reported.
Associated files
| File | Version | Description |
|---|---|---|
| T2EOS1-TEST2-50.RUN | 2017.A | Input file for the benchmark problem (fractures spacing is 50 meters). |
| T2EOS1-TEST2-250.RUN | 2017.A | Input file for the benchmark problem (fractures spacing is 250 meters). |
Screenshots and animated figures
- Animated figure (Water saturation and temperature distributions);
- Physical and logical models of the study;
- Results of the code validation.