Zhihong Zhao ([email protected]), Tsinghua University
Bo Li ([email protected]), Tongji University
Geothermal wells may suffer from disappointing injectivity and productivity with time or right from the start, and soft stimulation has been proposed and used to achieve enhanced geothermal reservoir performance while minimizing environmental impacts including induced seismicity. The soft stimulation techniques mainly include cyclic, multistage, chemical or thermal stimulations, but the underlying mechanisms are not well understood. A robust fully coupled thermo-hydro-mechanical-chemical (THMC) modeling method is urgently needed to optimize parameters of soft stimulation and predict its performances. The session welcomes experimental and numerical studies on soft stimulation techniques, as well as case studies in the worldwide geothermal reservoirs.