GeoEnergyNumerics

A Simulator Designed for Geological Sequestration of Carbon Dioxide

The reservoir simulator ACGSS is the result of more than 10 years of research and collaboration between the University of Melbourne, ETH Zürich, and Imperial University to design a specialised simulator for C02 sequestration. The main goal in the design was to introduce the following physical and numerical functionality to go beyond typical multi-phase reservoir simulators designed for Oil and Gas reservoirs. The key features of ACGSS include:

Physical Capabilities

State-of-the-art relative permeability curves
Realistic representation of capillary trapping
Up-scaling of anisotropic permeability
Explicit representation of fractures

Numerical Capabilities

Highly efficient local time stepping (DES)
Parrellelised multi-grid algebraic solver (SAMG)
Mass conservative control-volume-finite element method (CVFEM)

ACGSS is built on top of Open-CSMP++ library, which is a modular multi-physics simulation platform. Therefore, ACGSS can be coupled to other physical modules including mechanical and thermal modules, while work is ongoing to include chemical reactions. The team at GeoCarbon has been directly involved in the development of ACGSS and Open-CSMP++ since it's founding. Therefore we welcome opportunities to use such simulations platform to solve real-world problems, and to develop the toolkit further where needed.

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