Geothermal energy is a potential renewable energy with nearly zero CO2 emissions and low environmental impacts. Sustainable development of geothermal systems in sedimentary rocks require permeability enhancement and maintenance during the lifetime of a reservoir. The interaction between the fluid and rock may result in dissolution or precipitation of minerals, which changes the rock mass properties at reservoir conditions. This will alter the heat exchange capacity of the reservoir and hydromechanical response of the rock mass to fluid circulation.
Resalt aims at: 1) understanding the fundamental processes involved in reservoir scaling and its impact on key reservoir characteristics such as porosity and permeability, 2) optimizing the operational conditions such as pressure, temperature and stimulation scenarios to prevent or minimize the precipitation, 3) developing numerical models that simulate the physical process in reservoir scaling (particularly dissolution and precipitation), 4) verifying the numerical models with laboratory experiments and upscaling to complex reservoir systems.
Resalt is expected to provide preliminary steps toward predicting temporal evolution of thermo-hydro-mechanical-chemical (THMC) properties of reservoir systems.
||Dr.-Ing. Hung Pham|
+49 6151 16-22294
- Funding Period: 4Years (01.01.2018 – 31.03.2022)
- Grant Authorities: BMWi (Grant Agreement number: 0324244A)
Birkholzer, J. T., Bond, A. E., Hudson, J. A., Jing, L., Tsang, C. F., Shao, H., & Kolditz, O. (2018). DECOVALEX-2015: an international collaboration for advancing the understanding and modeling of coupled thermo-hydro-mechanical-chemical (THMC) processes in geological systems, Environmental Earth Sciences, 539.
Bond, A. E., I. Bruský, N. Chittenden, X.-T. Feng, O. Kolditz, P. Lang, R. Lu, C. McDermott, I. Neretnieks, P.-Z. Pan, J. Šembera, H. Shao, H. Yasuhara and H. Zheng (2016). “Development of approaches for modelling coupled thermal–hydraulic–mechanical–chemical processes in single granite fracture experiments.” Environmental Earth Sciences 75(19): 1313.