| Title | Characterization of Permeability Zones through Stress-Strain Distribution Analysis: Insights from Semurup Prospect, Jambi, Indonesia |
|---|---|
| Authors | Muhammad Ikhwan |
| Year | 2026 |
| Conference | World Geothermal Congress |
| Keywords | Semurup, stress-strain transfer, dilatation-slip tendency, permeability |
| Abstract | The utilisation of Indonesia's geothermal energy remains relatively low despite its huge potential. The acceleration of the national energy transition further emphasises the need for innovative strategies in geothermal exploration. Many geothermal fields in Indonesia are controlled by secondary permeability associated with faults and fractures. Understanding the mechanisms of fault interactions and their effects in a fault system offers valuable insights for characterising permeability zones, thereby supporting exploration efforts. This study investigates the interplay between stress, strain, and permeability within a fault system and its adjacent fractures at Semurup Prospect. Modelling results suggest the presence of zones with localised stress and strain perturbations concentrated at fault discontinuities and interactions. Surface manifestations indicative of active hydrothermal circulation consistently correspond to these perturbed zones, suggesting that focused permeable pathways strongly accommodate the upwelling and lateral flow. These findings support two concepts of hydrogeology at Semurup Prospect: focused upwelling at fault discontinuities and lateral flow along the fault. Furthermore, this study can provide additional insights in future geothermal conceptual modelling and well targeting efforts at the Semurup Prospect. |