Horizontal stress inversion based on azimuthal difference in P-wave reflectivity

Abstract

PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergyHorizontal stress inversion based on azimuthal difference in P-wave reflectivityAuthors: Fubin ChenZhaoyun ZongXingyao YinFubin ChenChina University of Petroleum (East China)Pilot National Laboratory for Marine Science and Technology (Qingdao)Shandong Provincial Key Laboratory of Deep Oil and GasSearch for more papers by this author, Zhaoyun ZongChina University of Petroleum (East China)Pilot National Laboratory for Marine Science and Technology (Qingdao)Shandong Provincial Key Laboratory of Deep Oil and GasSearch for more papers by this author, and Xingyao YinChina University of Petroleum (East China)Pilot National Laboratory for Marine Science and Technology (Qingdao)Shandong Provincial Key Laboratory of Deep Oil and GasSearch for more papers by this authorhttps://doi.org/10.1190/image2022-3743109.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractIn-situ stress information has broad applications in practical engineering production such as oil and gas exploration, drilling accident prevention. However, stress inversion is a challenging work in geophysical field. In this study, we consider a transversely isotropic model with the horizontal symmetry axis (HTI) subjected to horizontal stress that is usually encountered in the subsurface Earth. Firstly, the P- wave reflectivity equation for HTI media under horizontal stress is proposed on the context of acoustoelasticity and scattering theory. Then three methods for horizontal stress inversion are developed based on the azimuthal difference in proposed P-wave reflectivity equation. Numerical results illustrate the feasibilities of three methods with no noise and illustrate that three methods can provide reasonable inverted stress results at relatively large incidence angles but show huge bias at small incidence angles with constant or random noise. Our inverted results help better understand the in-situ stress prediction in stressed HTI media.Note: This paper was accepted into the Technical Program but was not presented at IMAGE 2022 in Houston, Texas.Keywords: horizontal stress inversion, HTI, P-wave reflectivity, azimuthal differencePermalink: https://doi.org/10.1190/image2022-3743109.1FiguresReferencesRelatedDetailsCited byCharacteristics of Azimuthal Seismic Reflection Response in Horizontal Transversely Isotropic Media under Horizontal In Situ Stress29 October 2022 | Surveys in Geophysics, Vol. 65 Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Fubin Chen, Zhaoyun Zong, and Xingyao Yin, (2022), "Horizontal stress inversion based on azimuthal difference in P-wave reflectivity," SEG Technical Program Expanded Abstracts : 218-222. https://doi.org/10.1190/image2022-3743109.1 Plain-Language Summary Keywordshorizontal stress inversionHTIP-wave reflectivityazimuthal differencePDF DownloadLoading ...