Investigation of Geological Structures Using Electromagnetic Down-Hole Temperature and Well Logs on Petrel Platform

Abstract

The objectives of this project was to correlate geological, electromagnetic, down-hole well log temperature, geological and well log information to indirectly image the permeable geothermal reservoir geometry and provide enough information for well siting. This confirmed that reservoir interpretation based on correlating magnetotelluric resistivity, inferred alteration and temperature was possible. The magnetotelluric resistivity maps and cross-sections extended these correlations to undrilled areas, revealing the likely geometry of the geothermal system. Conceptual models based on the resistivity images indicated that major northeast trending structures and confirmed by available well data information. The resistivity data interpretation reveals the heat source location and the major boundaries in Eburru geothermal field, it illustrates areas of target but can be reviewed with respect to engineering and environmental issues. By more efficiently directing well targeting, magnetotelluric resistivity imaging can reduce heating unsuccessful wells which intern can save on cost.