Publication

3D Geomechanical Modelling of CO2 Storage with Focus on Fault Stability

2024
Posters

Abstract

A digital twin of the subsurface is crucial for all performance and risks assessments of a CO2 storage activities. The goal of the project is to develop an efficient fully-coupled geomechanical simulator for CO2 storage capable to model fluid flow along cracks and faults and their associated opening and slip. To reach this goal, we extend the open-source finite element library Akantu to simulate the time-dependent hydro-mechanical changes associated with CO2 injection. Thanks to the high-performance computing capabilities of Akantu, the solver will allow representing the complete three-dimensional geological structure of a site including the presence of natural fractures and faults whose reactivation potential is critical to assess.

Official source

https://infoscience.epfl.ch/entities/publication/c66f7d20-b71b-4e94-a1a1-69a0cbf4ad2d

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2024
Posters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c66f7d20-b71b-4e94-a1a1-69a0cbf4ad2d

About this result

Related concepts (31)

Energy storage

Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential, electricity, elevated temperature, latent heat and kinetic. Energy storage involves converting energy from forms that are difficult to store to more conveniently or economically storable forms.

Hydrogen storage

Several methods exist for storing hydrogen. These include mechanical approaches such as using high pressures and low temperatures, or employing chemical compounds that release H2 upon demand. While large amounts of hydrogen are produced by various industries, it is mostly consumed at the site of production, notably for the synthesis of ammonia. For many years hydrogen has been stored as compressed gas or cryogenic liquid, and transported as such in cylinders, tubes, and cryogenic tanks for use in industry or as propellant in space programs.

Grid energy storage

Grid energy storage (also called large-scale energy storage) is a collection of methods used for energy storage on a large scale within an electrical power grid. Electrical energy is stored during times when electricity is plentiful and inexpensive (especially from intermittent power sources such as renewable electricity from wind power, tidal power and solar power) or when demand is low, and later returned to the grid when demand is high, and electricity prices tend to be higher.

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3D Geomechanical Modelling of CO2 Storage with Focus on Fault Stability

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