An integrated geophysical, hydrological, thermal approach to finite volume modelling of fault-controlled geothermal fluid circulation in Gediz Graben


Uner S., Dogan D.

Geothermics, cilt.90, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 90
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.geothermics.2020.102004
  • Dergi Adı: Geothermics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), CAB Abstracts, Communication Abstracts, Environment Index, Greenfile, INSPEC, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Geothermal, Western Anatolia, Numerical simulation, Fluid flow, WESTERN ANATOLIA, NUMERICAL SIMULATIONS, MENDERES-MASSIF, HEAT-TRANSPORT, TURKEY, FLOW, TECTONICS, REGIONS, PLATE, BASIN
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

© 2020 Elsevier LtdMany high temperature geothermal fields generally occur at settings of recent active tectonism or volcanism accompanied by the active faults and fractures. It is well known that the structural controls such as topography, active faults, etc., have a major effect on fluid flow pathways in those systems. In this paper, a complete hydro-thermo-geophysical model is created for the first time in the Gediz Graben, Western Anatolia. The finite volume method is used for numerical simulations by implementing a finite volume code, ANSYS-Fluent. The thermal and physical rock properties used in the model are taken from previous studies. Fluid flow velocity vectors and resulted temperature patterns for the region are calculated and presented. Our simulations demonstrate that the low-angle Master Graben Boundary Fault (MGBF) has three dominant roles 1) transporting the meteoric water to the depths; 2) distributing the heated geothermal water into the basin with inner basin faults, 3) transmitting the heated water to the surface. The model in this work can be easily adopted and extended to explore the possible reservoir structures in other geothermal areas.