The available ETM, TM 5 and 7 Landsat satellite images are interpreted. A geo-thermometric study was performed to determine the subsurface formation temperature, heat flow and water type. A number of 2D electric profiles are conducted in the study area to investigate the subsurface orientation of the geothermal anomalies. The recorded resistivity data are processed and interpreted to delineate the lateral and vertical configuration of the possible geothermal reservoirs.
This study revealed the presence of many good geothermal anomalies in Jizan province of which Al Khouba geothermal resource is considered the most important. It is characterized by good surface petro-thermal properties (high temperature, up to 78 掳C and good flow rate) and promised subsurface characteristics (good vertical and lateral extensions), as well as potential thermal properties.
The estimated thermal parameters are found to be 144 mW/M2, 318 kJ/kg and 133 掳C for heat flow, discharge enthalpy and subsurface temperature, respectively. A good geothermal potential of 17.847 MWt is estimated for Al Khouba hot spring providing a reservoir area of 1.125 km3. We do recommend the official authorities to investment, encourage and support the future scientific research in this area.