| Abstract |
Geothermal energy in Ecuador has seen significant advancements, especially in the context of volcanic resources, however, there is unquantified potential for geothermal energy in sedimentary basins. This article aims to document the analysis and results of the first geothermal potential estimates carried out in two (2) of the main blocks of the Oriente Basin of Ecuador, which has oil fields in operation and is characterized by interesting temperature gradients. This summarizes the most relevant aspects of geothermal energy in sedimentary basins associated with oil industry. The verification of temperature gradients in the identified blocks of the Oriente Basin was conducted using information from existing wells, along with the assessment of geothermal potential utilizing the volumetric method with Monte Carlo simulation. Concurrently, the regulatory framework and energy policies in Ecuador were analyzed along with current advancements in this area to ensure the viability of geothermal projects. Lastly, the social and economic impact of utilizing geothermal energy in oil operations and nearby communities was explored. The estimation of geothermal potential in these blocks yielded optimistic results between 2 and 58 MW of electrical power, with temperature gradients ranging from 26 to 65°C/km at accessible depths. Despite being classified as low to medium enthalpy, these resources can be integrated into existing oil operations, creating a sustainable business model, given that a large part of the operational infrastructure is already in place. Moreover, all available subsurface and well information will facilitate a robust quantification of reserves and their implementation in the short-medium term. |