DLP Webinar: Geometrical Inversion Coupled with Automated Geological Modelling
| Instructor: | Dr. Jeremie Giraud, Marie Sklodowska-Curie Fellow. |
|---|---|
| Duration: | 30 minutes + Q&A |
| Discipline: | Geophysical |
| Main topics: | Constrained geophysical inversion (potential fields) using implicit modelling |
| Language: | English |
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Read Paper in EarthDoc Register Here Attending webinars and access to recent EarthDoc material is free of charge for EAGE members, join here.Description
We introduce and test a method that integrates automatic geological modelling in level-set inversion. The objective of this method is to encourage geological realism during deterministic geophysical inversion for the modelling of interfaces between rock units. To this end, we introduce a geological correction term in the model update to reduce geological inconsistencies at each iteration of the inversion. This is achieved thanks to the integration of an automatic implicit geological modelling scheme within the geophysical inversion algorithm. After introducing the main theoretical aspect of the approach we propose, we present a realistic synthetic case illustrating the proof-of-concept in a basin scenario using gravity data.
Participants' Profile
Postgraduate students, researchers, industry practitioners who have an interest in non-seismic exploration techniques and integration.
About the Lecturer
Jérémie is a geophysicist by training. His and studies in geophysics led him to study and work on various geophysical techniques in Australia, Canada, Germany, Italy, the USA, and France. After obtaining his MSc. Eng. in geophysics (University of Strasbourg, France), he spent a few years in Schlumberger (WesternGeco Center of Excellence for Integrated EM in Milan, Italy) where he learned about joint inversion and worked on the development and application of methodologies for integrated reservoir modelling.
Jérémie then started his PhD in 2015 at the Centre for Exploration Targeting (School of Earth Sciences), University of Western Australia, which he completed in 2018. His project focused on the integration of geological modelling and petrophysical information in geophysical inversion. He then continued his research on integration methods at the University of Western Australia’s Centre for Exploration Targeting until May 2021. Following this, Jeremie has continued working on the topic as the recipient of Marie Skłodowska-Curie fellowship in the RING Team (Research for Integrative Numerical Geology) and through collaborations with the Loop and MinEx CRC academic-industry consortia.
In the Loop consortium, Jérémie is leading “Work Package 4 - Geophysical Integration”, which objective is to fuse geological modelling with geophysical inversion in an automated fashion. He also collaborates externally to work on case studies with researchers from the Commonwealth Scientific and Industrial Research Organization (CSIRO) and the Data Analytics for Resources and the Environment (DARE). In addition, Jeremie is also involved in the supervision of, and work with, Australia-based PhD students focusing on geophysical integration problems, with an interest in both the methodological development and practical applications to exploration scenarios.