I³MS - Wellmann Seminar
Prof. Dr. Florian Wellmann - How to Analyse the Subsurface: Methods and Challenges in Numerical Reservoir Engineering
Numerical Reservoir Engineering, AICES Graduate School, RWTH Aachen University
As a society, we utilize and affect the subsurface pore space in a variety of ways: from the extraction of water, geothermal energy, and petroleum resources to the potential injection of greenhouse gases, nuclear waste disposal and accidental contamination.
In this presentation, we provide a brief overview of these aspects and highlight the current state of methods and challenges related to the investigation of the subsurface in this context. We then discuss these challenges with an analysis of a basin-scale geothermal field in the Perth Basin, Australia. We show how multiple datasets are combined to determine subsurface transport processes – and discuss shortcomings of conventional reservoir engineering workflows. After these considerations, we present current approaches to (a) enable a better integration of geological and geophysical information in reservoir simulations, and (b) determine system-scale measures for uncertainty analysis and visualization based on thermodynamic concepts.
These new approaches provide a promising pathway towards an integrated analysis of uncertainties in subsurface studies, based on the consideration of geological uncertainties as well as complexities arising due to coupled processes in subsurface flow on the scale of typical reservoirs to the larger scale of sedimentary basins.