Get the Most Out of Every Field
Whether you’re developing a new reservoir or squeezing the last barrels from a mature one, GEI helps you design and execute development plans that maximize recovery, minimize costs, and adapt to market volatility.
Services Offered
GEI offers comprehensive reservoir modeling services that span the full project lifecycle—from exploration through production. These models combine static geological frameworks with dynamic flow simulations, integrating data from core, well logs, seismic, and thermal profiles. By capturing the subsurface complexity of geothermal systems, including porosity, permeability, and fluid characteristics, we help clients understand heat transport and long-term reservoir behavior. This foundation supports decisions about drilling, stimulation, and sustainable production planning.
We assist clients in evaluating multiple geothermal development strategies by modeling different well layouts, such as vertical, deviated, and horizontal configurations. Scenario planning also includes assessing completion techniques, spacing, and injection-production well pairings. This approach enables project teams to compare trade-offs in terms of energy output, thermal decline rates, and surface infrastructure requirements, ensuring they select the most efficient and cost-effective development plan.
For clients repurposing hydrocarbon reservoirs for geothermal use, we conduct EOR screening to evaluate the technical and economic feasibility of applying polymer flooding, gas injection (such as CO₂), or thermal recovery techniques. This includes analyzing how EOR methods might complement or interfere with geothermal heat recovery and determining if hybrid approaches can enhance total resource extraction. The result is a tailored strategy that leverages the strengths of both geothermal and conventional recovery methods where applicable.
We develop infill drilling plans that maximize reservoir contact while minimizing well interference. Using fine-grid reservoir models and historical performance data, we identify areas of residual heat or uncontacted zones. Our strategy ensures optimal spacing between wells to reduce thermal breakthrough and drainage overlap. This improves overall field recovery efficiency and extends the productive life of the geothermal system.
Accurate forecasting is critical for investment and operational planning. We apply analytical and numerical techniques to predict thermal drawdown and flow rates over time. This includes fitting decline curves to existing production data and simulating long-term performance under various reinjection strategies. Our forecasts help estimate the sustainable energy output, assess plant sizing, and plan maintenance schedules for consistent performance.
Every geothermal project must balance technical feasibility with financial returns. GEI conducts economic modeling that aligns subsurface performance with corporate goals such as internal rate of return (IRR), net present value (NPV), and payback period. We incorporate energy pricing, capital and operating costs, carbon incentives, and market outlooks to optimize development timing and scale. Sensitivity analyses are also performed to manage risk and support investment decisions.
We design tailored monitoring and surveillance systems to ensure geothermal field performance stays on track. This includes defining key performance indicators (KPIs), selecting instrumentation for temperature, pressure, and flow rate monitoring, and building feedback mechanisms that allow for timely adjustments. By implementing continuous surveillance, operators can detect issues early, adapt operational strategies, and ensure long-term project sustainability and efficiency.