The aim of the laboratory experiments presented here is to find a set of thermosensitive tracers to identify thermal characteristics in deep geothermal reservoirs during the long-term operation of a power plant. In the near future several short-term push-pull experiments are planned at different test-sites in northern Europe. As a first step we focus on tracers which fulfill the requirements of...

Background Engineered or enhanced geothermal systems (EGS) have been promoted as a technology that exploits geothermal heat and power production from regions of the crust devoid of shallow high enthalpy reservoirs (also referred to as high-grade hydrothermal resources) (e.g., MIT 2006). The status of EGS development was reviewed by Breede et al. (2013) who reported on 14 EGS projects that were ...

Raw material extraction from geothermal fluids often comprises concentrating and cooling steps, which increases the risk of silica scaling formation. However, existing removal strategies do not consider impact on raw extraction. In this study, applicability element-selectivity three techniques (seed-induced, lime caustic precipitation) were tested in batch experiments using synthetic natural fl...

This paper presents the outlines of a new Hot Wet Rock (HWR) geothermal project. The goal of the project is to develop a design methodology for combined artificial and natural crack geothermal reservoir systems with the objective of enhancing the thermal output of existing geothermal power plants. The proposed concept of HWR and the research tasks of the project are described.

The geological structure is rather complicated in Guangdong province, China. 10 deep fault belts are mainly oriented NE. NE good channels for thermal energy upwelling, which can form a geothermal water reservoir zone. heating of atmospheric precipitation and surface by rocks the primary formation mechanism hydrothermal resources Huangshadong field. results show that two-stage conversion system ...