Congress Programme

Congress 1 - Deep Geothermal Energy and Sector Coupling

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9.20 am

Eröffnung des Kongresses / Opening of the congress
Speaker: Prof. Dr. Detlev Doherr – Scientific Director GeoTHERM

9.35 am

Begrüßung / Words of Welcome

9.45 am

Begrüßung / Words of Welcome
Speaker: State Secretary Dr Andre Baumann, Member of the State Parliament – Ministry for the Environment, Climate and Energy

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Keynotes

10.10 am

Guest Country Iceland

Topic: The Future of Geothermal Energy in Iceland
Speaker: Árni Hrannar Haraldsson – CEO - ON Power

10.30 am

Guest Country France

Thema: French Geothermal Industry in 2026
Referent: Eric Lasne – President of AFPG

10.50 am

Guest Country Scotland

Thema: Geothermal for Generations: Local Needs, Global Collaboration
Referent: Mike Adams – CEO - Elemental Energies

11.10 am

Poster session

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Geothermische Ressourcen: Exploration, Bewertung und Reservoirmodellierung / Geothermal Resources: Exploration, Assessment and Reservoir Modelling

11.40 am

Topic: Exploring and Unlocking the Deep Geothermal Potential in the Inverted Lower Saxony Basin, North Rhine Westphalia – Chances, Opportunities, Requirements
Speaker: Dr. Joschka Röth – OWL Geopartners GmbH

12.00 pm

Topic: Der Wert von Informationen bei der Bewertung geothermischer Ressourcen
Speaker: Dr. Hartwig von Hartmann – LIAG-Institut für Angewandte Geophysik

12.20 pm

Topic: Reservoir Modelling based on logging and core analysis for a mid-deep reservoir in Hamburg-Wilhelmsburg
Speakers: Dr. Renate Pechnig & Dr. Carsten Hansen – Geophysica Beratungsgesellschaft mbH / CONSULAQUA Hamburg Beratungsgesellschaft mbH

12.40 pm

Poster session

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Projektplanung, Engineering und Risikomanagement in der Tiefengeothermie / Project Planning, Engineering and Risk Management in Deep Geothermal Energy

1.10 pm

Topic: Geothermal Project Design in Data-Limited Environments: Challenges and Practical Approaches
Speaker: Polly Tandy – Marriott Well Engineering Management Services

1.30 pm

Topic: Peer Review als Instrument der Qualitätssicherung und Risikoreduktion in Tiefengeothermieprojekten
Speaker: Sebastian Homuth – Deutsche Erdwärme GmbH & Co. KG

1.50 pm

Topic: Planung geothermischer Obertageanlagen unter Unsicherheit und Förderung – Übertragung standardisierter Projektsteuerungs- und Engineeringmethoden aus dem Kraftwerksanlagenbau
Speaker: Anja Graßmann – enpros

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Innovative Bohrtechnologien und sichere Bohrlochkomplettierung / Innovative Drilling Technologies and Safe Well Completion

2.20 pm

Topic: Development and Field Application of Dynamic Aerated Mud Cap Drilling in a Geothermal Environment
Speaker: Ardia Kanugroho – Weatherford Energy Services GmbH

2.40 pm

Topic: Shaped PDC Cutter Performance in High-Temperature Drilling Environments: Australian Field Evidence and Implications for Deep Geothermal Wells
Speaker: Tor Jørgen Verås – Halliburton

3.00 pm

Topic: Sidetrack Drilling with at Hydraulic Workover Unit
Speaker: Thomas Schreuder – Well Gear Group

3.20 pm

Topic: Quality Engineering for Geothermal Wells: Reducing Liner Running Risk Through Integrated Digital Planning and Simulation
Speaker: Marco Meirich – neowells GmbH

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Effizienter und sicherer Anlagenbetrieb: Monitoring und Betriebsoptimierung / Efficient and Safe Plant Operations: Monitoring and Operational Optimisation

3.50 pm

Topic: From Oil & Gas Production Engineering to Integrated Geothermal Operations: Lessons from 15+ Years of ESP Monitoring and Operational Data
Speaker: Pejman Shoeibi Omrani – TNO, Geological Survey of the NL

4.10 pm

Topic: Intervention-Based Distributed Fibre Optic Sensing for Geothermal Well Monitoring: Well Integrity, Flow, Seismic and Real-Time Pressure Applications
Speaker: Ehsan Nikjoo – Weatherford Energy Services GmbH

4.30 pm

Topic: “Aquaprox Facing New Geothermal Challenges: From Inhibitor Monitoring to Scaling Control”
Speakers: Dr. Chahinez Helali & Dr. Michael Soll – AQUAPROX INDUSTRIES

4.50 pm

Topic: AI-Assisted Predictive Monitoring of GeoESP Systems
Speaker: Andres Sanchez – Halliburton

Congress 2 - Shallow Geothermal Energy and Sector Coupling

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Internationale Geothermie und industrielle Sektorenkopplung / International Geothermal Energy and Industrial Sector Coupling

10.30 am

Topic: Fostering Geothermal Energy Across the Globe
Speaker: Manuela Richter oder Stephan Schreiber – PTJ Jülich

10.50 am

Topic: From geothermal power plant to living lab through sector coupling at Hellisheiði in Iceland
Speaker: Ingunn Gunnarsdóttir – ON Power

11.10 am

Poster session

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Geothermische Potenziale und räumliche Entscheidungsgrundlagen / Geothermal Potential and Spatial Decision Support

11.40 am

Topic: Deutschlandweite Bewertung des Erdwärmesonden-Potenzials mit Potenzialkarten und einem interaktiven Webtool
Speaker: Dr. Jens-Olaf Delfs – LIAG Institut für Angewandte Geophysik

12.00 pm

Topic: Potenziale von Erdwärmekollektoren in Deutschland – Ein Modell zur flächendeckenden Berechnung
Speaker: Sebastian Braun – Biberach University of Applied Sciences

12.20 pm

Topic: Decision Support System for BHE Heat Extraction and Rejection Rates Across Thermogeological, Climatic and Geometric Settings: An Open Source Implementation for Croatian Cities
Speaker: Tomislav Kurevija – University of Zagreb

12.40 pm

Poster session

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Wärmeübertrager und geothermische Systeme: Modellierung und Dimensionierung / Heat Exchangers and Geothermal Systems: Modelling and Design

1.10 pm

Topic: Dimensionierung von Bodenabsorbern: Eine geothermische Alternative im Neubau
Speaker: Fabian Neth – Biberach University of Applied Sciences

1.30 pm

Topic: Depth-Dependent Design Optimization of Borehole Heat Exchangers
Speaker: Zanne Korevaar – TNO, Geological Survey of the NL

1.50 pm

Topic: Werkzeuge für die Auslegung geothermischer Wärme- und Kälteversorgung
Speaker: Dirk Weiß – Technische Universität Dresden

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Innovative Bohrtechnologien, Bohrlochplanung und technische Standards / Innovative Drilling Technologies, Well Planning and Technical Standards

2.20 pm

Topic: How to construct 400+m deep curved bore hole heat exchangers
Speaker: Dr. Jan Jette Blangé – Canopus Drilling Solutions Geothermal

2.40 pm

Topic: Evolution of Geothermal Drilling Fluids for Ultra-High Temperature and Supercritical Conditions
Speaker: Alessandro Cascone – Newpark Drilling Fluid

3.00 pm

Topic: Closing the guidance gap in geothermal well construction: the IADC Well Construction Guidelines
Speaker: Douglas Gourlay – IADC Geothermal Committee

3.20 pm

Topic: Selective Borehole Enlargement Through a Salt Interval: Front-End Engineering of a Dual-Reamer Assembly in Austria
Speaker: Michael Phillips – Weatherford Energy Services GmbH

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Erdwärmesonden: Systemauswahl, Betriebssicherheit und thermische Optimierung / Borehole Heat Exchangers: System Selection, Operational Safety and Thermal Optimisation

3.50 pm

Topic: Vom Simulationsmodell zur Praxis: Innovative thermo-hydraulische Modellierung von separatus und Leitfaden zur Sondenauswahl
Speaker: Oliver Buschor – separatus AG

4.10 pm

Topic: Druckstufen von Erdwärmesonden – Druckverhältnisse bei Einbau und Betrieb von Erdwärmesonden
Speaker: Ludwig Thurner – Tewag GmbH

4.30 pm

Topic: Phase-Change-Material-Augmented Grout for Enhanced Borehole Thermal Energy Storage: A Case Study in Trento, Italy
Speaker: Don Varghese – Center for Sustainable Energy, Fondazione Bruno Kessler (FBK)

4.50 pm

Topic: Three rules for regeneration and shallow geothermal borefields
Speaker: Wouter Peere – Enead BV

Congress 1 - Deep Geothermal Energy and Sector Coupling

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Wirtschaftlichkeit, Förderung und Zukunftsperspektiven der Tiefengeothermie / Economics, Funding and Future Prospects of Deep Geothermal Energy

9.20 am

Topic: „Werden die Erkundungsprojekte bei der Tiefengeothermie aufgrund von GeoBG, Explorationsinitiative, Fündigkeitsrisikoversicherung, etc. nachhaltig beschleunigt?“
Speaker: Dr. Bodo Lehmann – DMT Group

9.50 am

Topic: How Deep Geothermal Financing is Evolving at the Level of Regions, Firms, and Technologies
Speaker: Torsten Kolind – Underground Ventures

10.10 am

Topic: A competitive analysis of baseload heating technologies: Geothermal in Germany’s district-heating transition
Speaker: Alexandra Gerken – Rystad Energy

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Saisonale Wärmespeicherung: Konzepte, Optimierung und Betriebserfahrungen / Seasonal Thermal Energy Storage: Concepts, Optimisation and Operational Experience

10.40 am

Topic: Technical and Thermal performance after five years of High Temperature ATES operation in Middenmeer, the Netherlands
Speaker: Peter Oerlemans – IF Technology

11.00 am

Topic: Multi-Objective Optimization of a Medium-Temperature Aquifer Thermal Energy Storage (MT-ATES) connected with a greenhouse: the case study of Andel (Netherlands)
Speaker: Sara Urrea Sánchez – Center for Sustainable Energy, Fondazione Bruno Kessler (FBK)

11.20 am

Topic: Status of the DeepStor project: HT-ATES in former oil-bearing reservoirs
Speaker: Dr. Emmanuel Gaucher – Karlsruhe Institute of Technology

11.40 am

Poster session

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Innovative geschlossene Geothermiesysteme: Auslegung und Leistungsfähigkeit / Innovative Closed-Loop Geothermal Systems: Design and Performance

12.10 pm

Topic: Performance of deep BHEs with extended lateral sections
Speaker: Prof. Dr. Sebastian Bauer – Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel

12.30 pm

Topic: Deep Closed-Loop Geothermal Energy Development Modeling and Performance Strategies
Speaker: Guizhong Chen – NOV

12.50 pm

Poster session

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Reservoirentwicklung, Stimulation und induzierte Seismizität / Reservoir Development, Stimulation and Induced Seismicity

1.20 pm

Topic: Reduzierung von Untergrundrisiken durch bewährte Methoden der Öl- und Gasindustrie: Erfahrungen aus der Entwicklung von Tiefengeothermieprojekten
Speaker: Rolf Herrmann – Deutsche Erdwärme GmbH & Co. KG

1.40 pm

Topic: Erfahrungen und Weiterentwicklung von Stimulationsverfahren in der Tiefen Geothermie
Speaker: Prof. Dr. Ingrid Stober – Universität Freiburg

2.00 pm

Topic: Hydraulic constraint and stable short-term thermal response in the Utah FORGE EGS circulation test
Speaker: Sepehr Sangin – TU Bergakademie Freiberg

2.20 pm

Topic: In Situ Geomechanical Measurements Targeting Higher Geothermal Yields and Safer Operations
Speaker: Emilie Peyret – SLB

2.40 pm

Topic: Induced seismicity sequence in Rittershoffen (France) after 10 years operation: analysis, understanding and consequences
Speaker: Dr. Clement Baujard – ES-Géothermie

Congress 2 - Shallow Geothermal Energy and Sector Coupling

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Lastprofile, Regeneration und integrierte Planung geothermischer Anlagen / Load Profiles, Regeneration and Integrated Planning of Geothermal Systems

9.20 am

Topic: BDD+E – Ein konsistentes Berechnungsverfahren für die suffiziente Dimensionierung geothermischer Energiesysteme und die Bewertung netzdienlicher Betriebsstrategien
Speaker: Andreas Lahme – Ingenieurbüro für Bauphysik und Simulation von Gebäuden und Energiekonzepten

9.50 am

Topic: Regeneration von Erdwärmesondenfeldern über Außenluft im Sommer – ein Dreamteam?
Speaker: Dr. David Kuntz – GeoAlto GmbH

10.10 am

Topic: Industrielles Heizen und Kühlen: Betriebserfahrung nach 10 Jahren Laufzeit
Speaker: Peter Kömmelt – MulitQ

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Sektorenkopplung und flexible Wärme- und Kälteversorgung / Sector Coupling and Flexible Heating and Cooling Supply

10.40 am

Topic: Sector-Coupled Campus Decarbonisation: Subsurface Thermal Dynamics, Hydrogeological Risks, and Well-Field Topology in Asymmetric Open-Loop Geothermal Heating
Speaker: Allegra Giblin Torlucci – School of Earth and Environment, University of Leeds

11.00 am

Topic: Coupling solar PV generation to underground heat storage, a Dutch demonstration project
Speaker: Dorien Dinkelman – TNO-Geological Survey of the Netherlands

11.20 am

Topic: Thermal Energy Storage for the Flexibilization of Geothermal Power Plants
Speaker: Thoms Hausmann – Fraunhofer Institut for Solar Energy Systeme ISE

11.40 am

Poster session

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Aquiferspeicher: hydraulische Charakterisierung und Betriebsoptimierung / Aquifer Thermal Energy Storage: Hydraulic Characterisation and Operational Optimisation

12.10 pm

Topic: Enhancing geothermal efficiency: Fluorescent tracer testing for Aquifer Thermal Energy Storage (ATES) in fractured aquifers
Speaker: Sofie de Volder – TRAQUA S.A

12.30 pm

Topic: Integrated Reservoir Simulation and Operational Optimization of a Medium-Temperature ATES system in Andel, Netherlands
Speaker: Masoud Manafi – Center for Sustainable Energy

12.50 pm

Poster session

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Geothermische Projektpraxis: Erschließung, Nachnutzung und Betriebssicherheit / Geothermal Project Practice: Development, Repurposing and Operational Safety

1.20 pm

Topic: Vom Sümpfungsbrunnen zur Wärmequelle
Speakers: Morris Reich & Malte Neumeier – RWE Power AG / plenum AG Management Consulting

1.40 pm

Topic: Repurposing Suspended or Closed-in Oil and Gas Wells for Geothermal Heat Production and Borehole Thermal Energy Storage Using Closed-Loop Coaxial Systems
Speaker: Harun Bitlis – Qheat

2.00 pm

Topic: When the Reservoir Isn’t There: The Sønderborg Case, Denmark
Speaker: Tina Rasmussen – Well Perform

2.20 pm

Topic: ECoPID: A Geothermal Pilot for Scale and Corrosion Control
Speaker: Pablo González – Kurita Iberica SL