High temperature instruments and methods developed for supercritical geothermal reservoir characterisation and exploitation.The HiTI project

• Published in: Geothermics
• Main Authors: Asmundsson, Ragnar, Pezard, Philippe, Sanjuan, Bernard, Henninges, Jan, Deltombe, Jean-Luc, Halladay, Nigel, Lebert, François, Gadalia, Alain, Millot, Romain, Gibert, Benoit, Violay, Marie, Reinsch, Thomas, Naisse, Jean-Marc, Massiot, Cécile, Azaïs, Pierre, Mainprice, David, Karytsas, Costas, Johnston, Colin
• Other Authors: Iceland GeoSurvey (ISOR ), Heat Research and Development (HEAT), Transferts en milieux poreux, Géosciences Montpellier, Université des Antilles et de la Guyane (UAG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles et de la Guyane (UAG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Bureau de Recherches Géologiques et Minières (BRGM), German Research Centre for Geosciences - Helmholtz-Centre Potsdam (GFZ), Advanced Logic Technology (ALT), Calidus Engineering Ldt, Université des Antilles et de la Guyane (UAG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), GNS Science Lower Hutt, GNS Science, Manteau et Interfaces, Centre for Renewable Energy Sources and Savings (CRES), CRES, Oxford Applied Technology, University of Oxford, Finanvement UE, Projet FP7 HITI, European Project: 35108,HITI
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2014
• Subjects: High temperature; Supercritical; Geothermometers; Downhole; Televiewer; Basalt experiments; [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry; [SDE.MCG]Environmental Sciences/Global Changes; Iceland
• Online Access: https://brgm.hal.science/hal-00921127; https://doi.org/10.1016/j.geothermics.2013.07.008

International audience During the early years of the Iceland Deep Drilling Project (IDDP), development of three distinctive technological and scientific approaches were formalised and then carried out until 2010 within a European funded project called HiTI (high temperature instruments for supercritical geothermal reservoir characterisation and exploitation). These approaches were: (1) development of several downhole instruments allowing them to function up to 300 ◦C and 400 ◦C, (2) identification of two new Na/Li cation ratio geothermometric relationships valid at very high temperature, (3) tracer testing with high temperature tolerant organic isomers and finally and (4) basalt rock deformation and petrophysical properties laboratory investigations at high temperature and pressure conditions.