November 15, 2023 - 17:00
Johannes Miocic (RUG) will talk about:
‘Rotliegend petrography of the Groningen reservoir and its role for reservoir compaction’
The extraction of gas from the Rotliegend reservoir in the Groningen gas field has resulted in a reduction in reservoir pressure and subsequent reservoir compaction. This non-uniform compaction behavior has induced stress changes along faults, leading to seismic activity. The compaction characteristics of the sandstone reservoir are primarily influenced by reservoir composition, including factors such as grain size, shape, detrital and authigenic mineralogy, as well as porosity. However, a comprehensive understanding of petrographic variations and the underlying processes responsible for the observed heterogeneity in the Groningen field remains incomplete. Here, I provide an overview of petrographic observations within the Groningen field and offer preliminary insights into the processes governing petrographic heterogeneity and how this may improve compaction predictions.
About the presenter
Dr. Johannes Miocic is an Assistant Professor for geo-energy at the Energy and Sustainability Research Institute Groningen, University of Groningen. Previously, he held the position of Assistant Professor in sedimentology and quaternary research at the University of Freiburg, Germany. In 2016, he successfully completed his Ph.D. in Geology at the University of Edinburgh, UK. His doctoral research centered on investigating the role of fault leakage in natural CO2 reservoirs and its implications for the long-term safety of engineered CO2 storage sites. Dr. Miocic earned his Diploma in Geology from the University of Jena, Germany, in 2011, with his thesis focusing on the impact of fluid-rock interactions on reservoir properties in Southern North Sea reservoirs.
His research primarily focuses on the sustainable utilization of subsurface resources in the context of energy systems, with a particular emphasis on the safety of subsurface storage of CO2 and hydrogen as well as utilization of shallow geothermal energy resources. Additionally, he is actively involved in enhancing our understanding of the Groningen gas field, where hydrocarbon extraction has led to reservoir compaction and induced seismic activity.
Millers, Plein 10, Den Haag
Remote connection: MS Teams