Kyung Won Chang1, Jeoung Seok Yoon2
1Sandia National Laboratories, USA, 2DynaFrax, Germany
Recent advancement of subsurface energy technologies, ranging from geological carbon sequestration, water and geothermal resource management, hydrogen storage, and long-term radioactive waste disposal, can result in rapid dynamics (slip/opening/growth/closure) of faults and fractures, potentially causing unfavorable leakage or earthquakes along the (re)activated discontinuities. Therefore, a better understanding of the physical parameters and processes that control dynamic behaviors of faults and fractures will lead to improved ability to engineer robust subsurface systems, such as physics-based site characterization and storage capacity estimate, as well as optimal monitoring system to detect potential geological risk during and after subsurface energy activities.
We invite contributions that focus on understanding mechanistic issues, developing new conceptual and predictive capabilities, or presenting relevant field/laboratory observations to foster discussion towards improving our understanding of (1) multiphase flow and coupling processes (e.g., thermo-hydro-mechanical-chemical) through discontinuities and into ambient formations, (2) geomechanical behaviors from fracture to reservoir scales, (3) impacts of geological or hydrological parameters and heterogeneity, (4) elastic loading, stress transfer processes and aseismic deformation, (5) influence of tectonic stressing, proximity to failure and fault orientations, and (6) chemical/reactive/radioactive transport.
SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525.