EAGE Training Course: Risk Assessment of CO2 Storage by Understanding Coupled Thermo-Hydro-Chemical-Mechanical Processes
Monday, 17 February
Training Course
In this course we will explain coupled phenomena in terms of i) reservoir conformance and ii) storage integrity by discussing the principles of coupled processes affected mainly by changes in pressure (effective stress), temperature and geochemistry in subsurface storage and sealing formations. These changes will affect flow and transport as well as geomechanical stability and impact the long-term predictability of conformance and containment.
There is a general understanding of the mechanisms that pose a certain risk to conformance and containment, however, depending on the specific case study, this can be at a certain likelihood and severity (according to classical risk matrices), but one key aspect that is often not well understood is the influence of time (short, medium, long-term risks).
We will address these processes for reservoir conformance (1 day) and reservoir containment (1 day) by using basic principles applied to real-world case studies that are available through published literature and reports.
There is a general understanding of the mechanisms that pose a certain risk to conformance and containment, however, depending on the specific case study, this can be at a certain likelihood and severity (according to classical risk matrices), but one key aspect that is often not well understood is the influence of time (short, medium, long-term risks).
We will address these processes for reservoir conformance (1 day) and reservoir containment (1 day) by using basic principles applied to real-world case studies that are available through published literature and reports.
Course Objectives:
- Generate an understanding of the coupled processes in CO2 storage reservoirs to make an assessment of short to long-term risks for reservoir conformance prediction.
- Generate an understanding of coupled processes in geological sealing units (caprocks, faults) to make an assessment of short to long-term risks for reservoir containment.
- Obtain an introduction into the fundamental coupled processes expected to occur in subsurface CO2 storage formations and associated seals.
- Learn how coupled processes are implemented in real-world CO2 storage projects to assess related risks.