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Geomechanical modelling is essential for prediction of likely effects from a planned CCS project, or to understand behaviour of an ongoing project. It is applied to assessment of caprock integrity, fault reactivation, induced seismicity, fracture influence on reservoir flow, reservoir management, drilling and completion parameters.
The course will begin with some core elements of geomechanics and progress to description and examples of sophisticated geomechanical modelling in the context of CCS. The link is drawn between geomechanical and permeability changes, as indicated from laboratory experiments and from well tests, with its key consequences for CCS. Field experience in a range of CCS projects is reviewed, emphasising any indications of geomechanical influence and ways of monitoring behaviour.
The course considers mechanical Earth models, why they are created, the pre-requisites and steps of how they are created, and an overview of applications relevant to CCS. Operations can modify simultaneously pore pressures, temperatures, and stresses in the reservoir and surrounding formations. The techniques and software available to study the effect of these temporal changes in 4D will be reviewed.
This course is aimed at subsurface oil and gas professionals who are familiar with CCS and would like to understand the issues relating to geomechanics for CCS projects.
Available H2 2023
Participants will learn to:
Introduction to geomechanics
Stresses and their importance
Geomechanical influence on permeabilities and monitoring changes
Mechanical Earth Modelling Fundamentals
3D Mechanical Earth Modelling – An Example - Groningen Field
4D Mechanical Earth Modelling – An Example