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Numerical Simulation of Temperature Logs in High Temperature Wells : Towards the Application to the RN-15/IDDP2 Well

Wang, Jia; Nitschke, Fabian; Gaucher, Emmanuel; Kohl, Thomas

Abstract:

In the frame of the EU Horizon 2020 DEEPEGS project and the IDDP2 project, the well RN-15 located in the Reykjanes geothermal field (Iceland) was deepened. So far, this well, namely RN-15/IDDP-2 is the deepest geothermal well drilled in Iceland with a final depth of 4,659 m,a measured bottom-hole temperature of 427°C and a fluid pressure of 34 MPa. During drilling, several temperature logs were run whilst water was injected continuously to cool down the equipment in the borehole due to the high-temperature environment. The objective of our work, as part of the DEEPEGS project, is to apply numerical simulation methods to estimate the formation temperature and fluid loss along the well path, based on the recorded temperature logs acquired under dynamic conditions, during and after drilling. This is of particular interest for the development and understanding of the deep geothermal reservoir. Our approach comprises the development of a transient thermal model in which the temperature evolution of the well and the surrounding formation is simulated. The numerical tool enables the use of the whole history of fluid circulation data. ... mehr


Volltext §
DOI: 10.5445/IR/1000140805
Veröffentlicht am 07.12.2021
Cover der Publikation
Zugehörige Institution(en) am KIT KIT-Bibliothek (BIB)
Universität Karlsruhe (TH) – Zentrale Einrichtungen (Zentrale Einrichtungen)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000140805
HGF-Programm 35.14.01 (POF III, LK 01) Effiziente Nutzung geothermisch. Energie
Schlagwörter Geothermal energy, numerical simulation, formation temperature, fluid loss.
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