CCS and Power Systems

Carbon Storage - Geologic Storage Technologies and Simulation and Risk Assessment


Enhanced Analytical Simulation Tool for CO2 Storage Capacity Estimation and Uncertainty Quantification


Performer: Bureau of Economic Geology

Project No: FE0009301


Project Description

This three year research effort will develop an Enhanced Analytical Simulation Tool (EASiTool), which is intended for both technical and nontechnical users to achieve a fast, reliable, scientific estimate of CO2 storage capacity for any potential geologic reservoir containing brine. The EASiTool will include three major features: (1) an advanced, closed-form, analytical solution for pressure-buildup calculations that is used to estimate both injectivity and reservoir-scale pressure elevation, in both closed- and open-boundary aquifers; (2) a simple geomechanical model coupled with a base model to evaluate and avoid the possibility of fracturing reservoir rocks by injecting cold, supercritical CO2 into hot formations, for the model will also be able to evaluate rock deformation; and (3) a net-present-value (NPV)-based optimization algorithm used to integrate brine-management processes so that profit can be assessed assuming a carbon-storage credit-based structure is in place.

This analytical simulation tool will allow stakeholders to a CO2 storage project to screen geologic formations and assess which reservoir might be able to accommodate storage needs over a given period of time. The project team is investigating integrating all features using an analytical or semianalytical form that allows for fast calculations. Full physics, numerical simulations will be used to validate analytical models, and a simulation tool will be applied to several reservoirs.

This analytical simulation tool will allow stakeholders to a CO2 storage project to screen geologic formations and assess which reservoir might be able to accommodate storage needs over a given period of time. The project team is investigating integrating all features using an analytical or semianalytical form that allows for fast calculations. Full physics, numerical simulations will be used to validate analytical models, and a simulation tool will be applied to several reservoirs.


Project Details