Figure 1.
The flowchart outlines the back calculation process to assess the performance of hydro gas model parameters. It begins with the calibration of model parameters, followed by a simulation of a swelling pressure test. The diagram includes stages such as the calibration of mechanical parameters and the generation of a three dimensional model geometry with preferential pathways. A key part of the process involves checking the injected volume of gas, concluding with a comparison of back pressure. Spatial indicators such as arrows show the flow between steps, with each step encircled and numbered for clarity. The drawing also depicts a cylinder with specified dimensions and indicates water flow directions.Methodology followed during the study