TUM.GTT @ ICDP Colloquium in Bremerhaven
19/11/2024
Michael Drews presented the current status of the DFG funded World Pressure Map project, which we conduct in collaboration with the World Stress Map project.
TUM.GTT auf dem Geothermiekongress 2024
24/10/2024
New paper!
New paper reflecting on sonic velocity and electrical resistivity measurements for pore pressure evaluation in the North Alpine Foreland Basin, SE Germany | 06/08/2024
Download: https://doi.org/10.1144/petgeo2024-014
Abstract
This paper combines quality-controlled pore pressure measurements and indicators with geophysical well logs of 310 deep wells to evaluate the pore pressure distribution in the overpressured North Alpine Foreland Basin, in southeast Germany. Previous studies relied chiefly on low resolution checkshots and vertical seismic profiles calibrated to only a few pore pressure measurements. Current study based on sonic and electrical resistivity logs indicates that more than one shale normal compaction trend is required to appropriately assess pore pressure from geophysical well logs. Thereby, the necessary adjustments of the derived compaction trends apply to both sonic and resistivity data, which possibly reflect a gradual change in mineralogical composition with decreasing clay content or progressing cementation from north to south or an increase of horizontal loading driven compaction towards the North Alpine Thrust Front. The newly derived compaction-based pore pressure distribution is combined with drilling data-based pore pressure evaluations and offers a comprehensive update of previous pore pressure investigations in the North Alpine Foreland Basin. Our study is therefore of key importance for optimised well planning and cost-effective drilling in the course of the recent expansion of deep geothermal energy exploration in the overpressured North Alpine Foreland Basin.
Shallow seismic campaign between Altötting and Simbach (SE Bavaria)
04/06/2024
Inorder to test the detectability of shallow gas deposits, a shallow seismic acquisition campaign was carried out between Altötting and Simbach a. Inn from May 13th to 17th, 2024. The campaign was conducted in cooperation with GeoSym GmbH. To do so, both P-wave and S-wave reflection seismic profiles with a total length of approximately 2000 m were acquired. Shallow gas deposits can pose a significant drilling risk, but pre-drill detection on conventional seismic is challenging. Due to the shallow gas deposits that have been proven in the past, the study area is particularly suitable for drawing conclusions about the detectability of shallow gas through seismic measurements and for improving the safety of (geothermal) drilling in other regions in the future through preliminary measurements.
The campaign is part of TUM.GTT's research project GeoChaNce, funded by the Bavarian Environment Agency.
4th Annual Speed-Dating between Geothermal/Geoenergy Masterstudents and Geothermal Companies
26/01/2024
On January 26th, students of the Geothermal/Geoenergy Master Study Scheme had the chance to discuss opportunities for jobs, master thesis topics and internships with representatives from companies active in the geothermal sector.
We would like to thank the students and representatives from geoENERGIEKonzept, Stadtwerke München (SWM), ERDWERK, ecoprimeGmbH, Geothermie Unterhaching, Erdwärme Grünwald and IEP-Pullach for their interest and participation.
The event was intiated and organized by the Geothermal-Alliance Bavaria (GAB), TUM's Professorship for Geothermal Technologies, FAU's Chair of Geology and Geothermie Unterhaching.
2 new projects led by TUM.GTT start in 2024!
01/01/2024
TUM.GTT leads two new projects (GeoChaNce.Bayern and BORIS) funded by the Bavarian Environment Agency:
GeoChaNce.Bayern (Geological-physical characterization of the North Alpine Foreland Basin in Bavaria, German title: Geologisch-Physikalische Charakterisierung des Nordalpinen Vorlandbeckens in Bayern)
BORIS (Drilling Risk, German title: Bohrrisiko)
TUM.GTT @ DGK 2023 in Essen
18/10/2023
TUM.GTT contributed two talks and a poster to the German Geothermal Congress (Der Geothermiekongress) 2023 in Essen.
Robin Renoth talked about social acceptance of deep geothermal energy: "Sind Bedenken gegenüber der Geothermie länderspezifisch? – Deutschland, die Schweiz und Japan im Vergleich"
Peter Obermeier presented a poster adressing velocity-density relationships and the vertical stress distribution in the North Alpine Foreland Basin in SE Germany (Bavaraian Molasse Basin): "Lithologisch differenzierte Dichte-Geschwindigkeitsbeziehungen zur regionalen Spannungs- und Kompaktionsmodellierung im Bayerischen Molassebecken"
Michael Drews gave a talk about what to learn from pore presure and stress analysis with regard to deep geothermal exploration in the North Alpine Foreland Basin: "Integration of basin analysis and regional geomechanical investigations in the North Alpine Foreland Basin (Bavarian Molasse Basin) – implications for drilling, exploration and production"
TUM.GTT @ Gussow Conference 2023
12/10/2023
Michael Drews was invited to speak about the ongoing efforts of TUM.GTT to initiate a global and quality-ranked pore pressure magnitude database in collaboration with the World Stress Map Project at the Gussow 2023 in Banff, Canada!
Co-Authors: Indira Shatyrbayeva, Birgit Müller (KIT) and Oliver Heidbach (GFZ Potsdam)
TUM.GTT @ EGU
28/04/2023
Dr. Florian Duschl and Dr. Saeed Mahmoodpour represented TUM.GTT with a poster and talk about mechanics of the subalpine wedge at the EGU general assembly in Vienna.
The abstracts can be accessed here:
Poster by. F. Duschl et al.: 10.5194/egusphere-egu23-16710
Talk by S. Mahmoodpour et al.: 10.5194/egusphere-egu23-7038
TUM.GTT @ Doctoral Candidate's Day of TUM's School of Engineering and Design
16/03/2023
Indira Shatyrbayeva, Peter Obermeier and Robin Renoth presented their PhD-works about drilling risks and compaction in the North Alpine Foreland Basin and social acceptance of deep geothermal energy at SoED's Doctoral Candidate's Day. Congrats to Indira for receiving the award for the best scientific talk!
TUM.GTT visits geothermal power plant in Laufzorn
06/03/2023
The GTT-Team visited the deep geothermal power/heat plant in Laufzorn/Oberhaching as a team outing on March 6th 2023. Thanks to Ferdinand Hülß for the nice tour, insights and discussions!
1. Workshop „Geologisch-bohrtechnische Herausforderungen im Bayerischen Molassebecken“
02/03/2023
Im Rahmen des Forschungsprojekts Boost.GeothermBayern fand am 16. Februar 2023 der erste Workshop „Geologisch-bohrtechnische Herausforderungen im Bayerischen Molassebecken“ an der TU München statt. Der Workshop wurde vom Fachgebiet für Geothermal Technologies der TUM gemeinsam mit der Geothermie-Allianz Bayern organisiert.
Insgesamt haben sich mehr als 30 TeilnehmerInnen aus Forschung, Behörden und Praxis zum Wissensstand und Umgang mit den geologisch-bohrtechnischen Herausforderungen im Bayerischen Molassebecken ausgetauscht. Hierzu fanden verschiedene Fachvorträge aus Forschung, Behörden und Praxis sowie Diskussionsrunden zu folgenden Themen statt:
- Relevante Untergrunddaten und Stand der Forschung
- Porenüberdrücke aus geologischer und bohrtechnischer Sicht
- Geomechanische Bohrpfadplanung
- Umgang mit Seichtgas- und H2S-Vorkommen
Im Anschluss haben ~60% der TeilnehmerInnen die Möglichkeit zur Teilnahme an einer Umfrage zum Workshop wahrgenommen. Die UmfrageteilnehmerInnen setzten sich dabei zu 2/3 aus GeowissenschaftlerInnen und zu 1/3 aus BohringenieurInnen zusammen. Hierbei waren mehr als 95% der UmfrageteilnehmerInnen mit Organisation, Länge und Inhalt des Workshops sehr zufrieden oder zufrieden. Ca. Zweidrittel der UmfrageteilnehmerInnen haben sich dabei für eine jährliche Ausrichtung des Workshops ausgesprochen. Zusätzlich zu den im Workshop adressierten Themen wurden außerdem weitere relevante geologisch-bohrtechnische Herausforderungen ausgemacht. Hierbei wurden am häufigsten die Themen Bohrungsdesign & Bohrungsintegrität, Spülungsverluste & Fracture Gradient sowie Bohrlochstabilität genannt. Die höchste Priorität und den größten Forschungsbedarf sehen die Umfrageteilnehmer dabei bei der Bohrlochstabilität.
3rd Annual Speed-Dating between Geothermal/Geoenergy Masterstudents and Geothermal Companies
27/01/2023
On January 27th, students of the Geothermal/Geoenergy Master Study Scheme had the chance to discuss opportunities for jobs, master thesis topics and internships with representatives from 9 companies active in the geothermal sector. The companies covered the entire range from project development, geoscience, drilling and operators in both deep and shallow geothermal energy.
We would like to thank the students and representatives from Erdwärme Grünwald, Erdwerk, geoENERGIE Konzept, G.E.O.S., Geothermie Neubrandenburg (GTN), Geothermie Unterhaching, Innovative Energie für Pullach (IEP), KemCo and Stadwerke München (SWM) for their interest and participation.
The event was intiated and organized by the Geothermal-Alliance Bavaria (GAB), TUM's Professorship for Geothermal Technologies, FAU's Chair of Geology and Geothermie Unterhaching.
Geothermie: Rechnerisch 40 Prozent des bayerischen Wärmebedarfs bedienbar
09/12/2022
Forschende der Technischen Universität München (TUM) sehen großes Potenzial für den Ausbau der tiefen Geothermie in Bayern. In einer Analyse zum Masterplan Geothermie zeigt der Forschungsverbund Geothermie-Allianz Bayern Möglichkeiten auf, dass mithilfe von Wärmeverbundleitungen auch geologisch benachteiligte Regionen im Freistaat mit nachhaltiger Fernwärme versorgt werden können. Dabei wird erstmals das technische Potenzial der hydrothermalen Geothermie in Südbayern betrachtet. Auftraggeber der Studie ist das Bayerische Staatsministerium für Wirtschaft, Landesentwicklung und Energie, das den Bericht kürzlich veröffentlicht hat. Zur kompletten Pressemitteilung der TUM