Wolfgang Hollstein Research Assistant Contact Telefon: +49 5323 72 5014 Telefax: +49 5323 72 E-Mail: wolfgang.hollstein @ tu-clausthal . de Office hours: by appointment Institute of Subsurface Energy Systems

University of Technology, Germany/University of Lorraine, France Social media ResearchGate Areas of responsibility Head of the Research Group “Flow and Transport in Underground Storage Systems” Projects HyUSPRe […] Birger Hagemann, Ph.D. (Engineering) Research Assistant Department Deposit geology Biography 2012 B.S. in Energy and Raw Materials, Clausthal University of Technology, Germany 2013 MSc in Petroleum Engineering […] economic, and societal integration, storage, and conversion of hydrogen in Lower Saxony H2SIM/HySTORAGE Research Modeling of coupled microbial and physical processes in porous media Gas mixing processes in porous

Yousra El Bouhlali Research Assistant Project GEOThermie4All – Micro Degree in Geothermal Energy as a Key Component of the Heat Transition Contact Telefonnummer: +49 5323 72 2450 Mobil: +49 177 34 23 014

Kanaan Al-Maasarani Research Assistant Contact E-Mail: kanaan.al.maasarani @ tu-clausthal . de Office hours: By appointment Institute of Subsurface Energy Systems Agricolastraße 10 Gebäude C 21, 38678

Sonya Ahmadyar Research Assistant Department Petroleum Production Systems Contact Telefon: +49 5323 72 2448 E-Mail: Sonya.ahmadyar @ tu-clausthal . de Office hours: by appointment Institute of Subsurface

Bouhlali Research Assistant E-Mail: yousra.el.bouhlali @ tu-clausthal . de Dr.-Ing. Birger Hagemann Research Assistant E-Mail: birger.hagemann @ tu-clausthal . de Wolfgang Hollstein Research Assistant […] de Stanley Ibeh Research Assistant E-Mail: stanley.ibeh @ tu-clausthal . de Dr.-Ing. Bettina Jenei Research Assistant E-Mail: bettina.jenei @ tu-clausthal . de Emmanuel Jituboh Research Assistant E-Mail: […] de Christian Lüddeke Research Assistant E-Mail: christian.truitt.lueddeke @ tu-clausthal . de Dr.-Ing. Ke Li Research Assistant E-Mail: ke.li @ tu-clausthal . de Jiashun Luo Research Assistant E-Mail: jiashun

Department Drilling and Production Technology Areas of responsibility Full-Scale Testing Center Research Testing, analysis, and optimization of tubular products for the oil and gas industry—friction resistance

the Executive Board Department Rock Mechanics Areas of responsibility Head of the Rock Mechanics Research Group Head of the China Competence Center at Clausthal University of Technology China Representative […] partners: Sichuan University, China University of Mining and Technology, TU Clausthal, EFZN): Basic research on energy storage in caverns constructed in highly impure rock salt in China (2012–2016, project […] Institute of Rock & Soil Mechanics of the Chinese Academy of Sciences, TU Clausthal, EFZN): Basic research on CO 2 sequestration in rock salt caverns (2007–2010) Geothermal Systems BMWi Project (0325662F)

in Hydrogen Storage Gas separation in hydrogen/nitrogen/ammonia systems CO2-enhanced oil recovery Research Focus Areas Technical challenges in deep geothermal systems Interfacial phenomena in fluid-liquid-solid […] Sebastian Bauer, Christof Beyer, Guido Blöcher, Claire Bossennec, Maximilian Dörnbrack et al. "Current research on aquifer thermal energy storage (ATES) in Germany." Grundwasser (2025): 1-18. Samara, H., T. V […] in high‐temperature aquifer thermal energy storage considering buoyancy flow." Water Resources Research 60, no. 11 (2024): e2024WR037491. Fechter, Tijana, Rafael Villablanca-Ahues, Vesna Leontijevic,

Engineering Department Program Director, BSc. Energy and Raw Materials / MSc. Petroleum Engineering Research Reservoir Simulation and History Matching Underground Hydrogen Storage Geothermal Engineering CO2