Repurpose Oil & Gas Knowledge for Clean Heat
As part of the global energy transition, geothermal is gaining momentum. GEI applies decades of oil & gas reservoir modeling expertise to evaluate and de-risk geothermal energy projects—helping you diversify into sustainable energy with confidence.
How We Help
Resource screening involves analyzing existing well logs, temperature gradients, and subsurface thermal data to identify zones with sufficient heat for viable geothermal development. By integrating geological, geophysical, and geochemical data, we help clients pinpoint high-temperature formations, assess reservoir depth and permeability, and determine whether the heat resource is suitable for electricity generation or direct-use applications.
Reservoir simulation focuses on modeling subsurface thermal behavior over time to predict how a geothermal reservoir will perform under sustained production. Using numerical simulation tools, we evaluate thermal drawdown, fluid circulation patterns, and reinjection strategies to estimate the system’s longevity and energy output potential. This helps reduce the risk of early resource depletion and supports optimized field development planning.
Conceptual well design defines the architecture and specifications of geothermal wells tailored to the thermal and geological conditions of the resource. We recommend drilling depths, casing and completion strategies, and thermal protection measures to ensure wellbore integrity, minimize heat loss, and achieve desired flow rates. Our designs consider both conventional and enhanced geothermal systems, balancing technical feasibility with cost efficiency.
Surface system evaluation assesses the most appropriate technology—such as flash steam, binary cycle, or enhanced geothermal systems (EGS)—based on the temperature, pressure, and chemistry of the geothermal fluid. We evaluate the thermodynamic efficiency, equipment requirements, and environmental footprint of each option to recommend the best-fit surface infrastructure that aligns with project goals and regulatory requirements.
Economic feasibility studies provide a comprehensive financial picture of the geothermal project by modeling the Levelized Cost of Electricity (LCOE), potential capacity factors, and long-term returns. We also evaluate the impact of tax credits, carbon-offset opportunities, and capital expenditures to determine project viability. This analysis supports investment decisions and helps clients access funding or government incentives with confidence.