| Authors |
Peter MEIER, Frédéric GUINOT, Falko BETHMANN, Roland FASCHINGBAUER, Andrés ALCOLEA, Françoise LIAUTAUD, Jérôme THABOUREY, Tiphaine SCHOTT, Jesus CARRERA, Victor VILARRASA RIAÑO, Albert GENTER, Nicolas CUENOT, Justine MOUCHOT, Martin SAAR, Xiang-Zhao KONG, Rolf BRACKE, Volker WITTIG, Isabella NARDINI, Waldemar MÜLLER-RUHE , Daniel SCHINDLER , Andre ZUCKER, Florian AMANN, Tobias RAUSCH, Alexander WIENZEK, Alexander BUCHNER, Annabelle MOLLIET, Diana McMATH, Peter SCHNETTLER-KRISTENSEN , Søren HALLUNDBÆK, Jørgen HALLUNDBÆK |
| Abstract |
The ZoDrEx project is a GEOTHERMICA ERA-NET co-funded project aiming at demonstrating drilling, completion and production products and technologies that will increase the technical and economical chances of success in geothermal energy applications. At the end of the project, ZoDrEx will have demonstrated that: I. Fluid driven percussion drilling can be used in highly deviated trajectories to improve drilling efficiency in crystalline rocks, and that the impacts in percussion drilling can be dampened to a level compatible with downhole measurement systems, thus leading to substantial cost reduction in geothermal well construction. The improvements will be demonstrated in granite of the Bedretto underground research laboratory in the Swiss Alps. II. Zonal isolation is key to efficient EGS stimulation and that zonal isolation technologies selection can be performed efficiently. Additionally, ZoDrEx will have contributed to the development of more robust zonal isolation technologies, which will be demonstrated in boreholes of the Bedretto underground research laboratory in the Swiss Alps. III. Operating EGS plants can be optimized through automation, protected against corrosion with more acceptable inhibitors, thoroughly monitored for ensuring the safety of the workers, the public and the environment. These optimisations will be shown at the Rittershoffen geothermal power plant in Alsace, France. All the activities within ZoDrEx are aiming at selecting or extending, testing and implementing existing technologies to adapt or prove them in the context of geothermal projects. By testing some of these technologies in an underground laboratory, ZoDrEx allows a more precise control over experimental conditions, a low risk environment for trying new technologies and reduced cost when compared to testing in a deep wellbore. In the end, EGS operators will have a better understanding on how to improve well construction, EGS creation, production optimization and plant operation at a reduced technical and financial risk. The ZoDrEx project groups 10 partners from Denmark, France, Germany, Spain and Switzerland. These partners include 5 industry leaders in drilling, drilling fluid services, completion equipment, project management and geothermal operators, 3 engineering organizations active in both the public and the private sectors, and two prestigious academic research organisations. Co-Authors: Frédéric GUINOT, Falko BETHMANN, Roland FASCHINGBAUER, Françoise LIAUTAUD, Jérôme THABOUREY, Tiphaine SCHOTT, Jesus CARRERA, Victor VILARRASA RIAÑO, Albert GENTER, Nicolas CUENOT, Justine MOUCHOT, Martin SAAR, Xiang-Zhao KONG, Rolf BRACKE, Volker WITTIG, Isabella NARDINI, Waldemar MÜLLER-RUHE , Daniel SCHINDLER , Andre ZUCKER, Florian AMANN, Tobias RAUSCH, Alexander WIENZEK, Alexander BUCHNER, Annabelle MOLLIET, Diana McMATH, Peter SCHNETTLER-KRISTENSEN , Søren HALLUNDBÆK, Jørgen HALLUNDBÆK |