北京大学力学与工程科学学院

能源与资源工程系学术报告

报告人：Yu-Shu Wu 教授

Colorado School of Mines, CO, USA

主持人：邸元 副教授

时间：2025年12月12日（周五）上午10:00

地点：新奥工学大楼1007会议室

Abstract:

Underground hydrogen storage (UHS) in depleted gas reservoirs provides a viable, practical solution for near-term implementation in comparison with other storage approaches. Reliable assessment of hydrogen storage performance, system design, and operation in depleted gas reservoirs requires accurate representation and modeling of coupled thermal, hydraulic, and mechanical (THM) processes. In this study, we present a new, fully-coupled THM capability for simulation of UHS process by modifying and enhancing the TOUGH2-CSM simulator. TOUGH2-CSM was originally designed for modeling CO₂ sequestration in saline aquifers and lacked support for hydrogen-specific thermophysical behavior, flow and transport. We extend its functionality through the development and integration of a new equation-of-state (EOS) module for multicomponent hydrogen storage systems, enabling modeling of multicomponent mixtures in multiphase, non-isothermal flow conditions. The geomechanical coupling distinguishes it from hydrogen-enabled TOUGH family EOS modules, which does not account for rock deformation and geomechanical impact, bridging a critical gap and enhancing its relevance for practical UHS applications.

The developed model has been validated using thermophysical property data from the National Institute of Standards and Technology (NIST) and available experimental data from literature, ensuring accurate prediction of gas behavior across a wide range of pressure-temperature conditions in reservoirs. Geomechanical simulation is examined via the analytical solution of the Terzaghi’s consolidation theory. Additionally, the model’s applicability is illustrated through application case study of hydrogen storage in a depleted gas field, demonstrating its potential for real-world UHS application and optimization. 

Bio: Yu-Shu Wu is a professor in petroleum reservoir engineering and director of Energy Modeling Group (EMG) research center in the Petroleum Engineering Department at the Colorado School of Mines (CSM), USA. He is also an adjunct professor at KFUPM. He is a fellow of the Geological Society of America (GSA). He held MS and PhD degrees in reservoir engineering from University of California at Berkeley, and BS and MS degrees in petroleum engineering from China Universities.  He has been a Guest Scientist at the Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA, since 2008. At CSM, he teaches and carries out research in reservoir engineering, multiphase fluid and heat flow, geomechanics, unconventional oil and gas reservoir dynamics, CO2 EOR and geosequestration, geothermal reservoir engineering, and subsurface energy storage. He leads the EMG in its research effort in (1) flow and simulation of conventional and unconventional oil and gas reservoirs; (2) coupled processes of multiphase fluid and heat flow, geomechanics, and chemical reaction in porous and fractured rock; (3) Gas/CO2 EOR and sequestration; (4) improved cryogenic fracturing technologies; and (5) hydraulic fracturing modeling. Previously, he was a staff scientist with the Earth Sciences Division of LBNL for 14 years (1995–2008). During his career, he has authored and coauthored more than 170+ peer-reviewed journal papers, 2 books, and 21 peer-reviewed book chapters as well as 89 SPE papers. 

欢迎各位老师和研究生参加！