Geophysics over high temperature geothermal fields: Lessons from magnetotelluric and gravity joint inversions

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2020Geophysics over high temperature geothermal fields: Lessons from magnetotelluric and gravity joint inversionsAuthors: Wolfgang SoyerRandall MackieStephen HallinanFederico MiorelliBirean SagalaHaris SiagianWolfgang SoyerCGG Geoscience Multi-Physics ImagingSearch for more papers by this author, Randall MackieCGG Geoscience Multi-Physics ImagingSearch for more papers by this author, Stephen HallinanCGG Geoscience Multi-Physics ImagingSearch for more papers by this author, Federico MiorelliCGG Geoscience Multi-Physics ImagingSearch for more papers by this author, Birean SagalaKS Orka RenewablesSearch for more papers by this author, and Haris SiagianKS Orka RenewablesSearch for more papers by this authorhttps://doi.org/10.1190/segam2020-3428178.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractIn higher temperature geothermal settings, the petrophysical relationships between the critical attributes (density, velocity and resistivity) vary greatly across the range of primary lithologies, and are compounded by secondary alteration. Seeking a quantitative and practical approach to integrated modeling of disparate geophysical data types, we discuss using a structural similarity constraint, through 3D crossgradient joint inversion. The examples here look at resistivity and density inversions in a graben setting, including the use of tears in the smoothing regularization, to better represent sharper discontinuities, where consistent with the observed data.Note: This paper was accepted into the Technical Program but was not presented at the 2020 SEG Annual Meeting.Keywords: geothermal, 3D, magnetotelluric, gravityPermalink: https://doi.org/10.1190/segam2020-3428178.1FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2020ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2020 Pages: 3887 publication data© 2020 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 30 Sep 2020 CITATION INFORMATION Wolfgang Soyer, Randall Mackie, Stephen Hallinan, Federico Miorelli, Birean Sagala, and Haris Siagian, (2020), "Geophysics over high temperature geothermal fields: Lessons from magnetotelluric and gravity joint inversions," SEG Technical Program Expanded Abstracts : 1755-1759. https://doi.org/10.1190/segam2020-3428178.1 Plain-Language Summary Keywordsgeothermal3DmagnetotelluricgravityPDF DownloadLoading ...