{"id":11362,"date":"2024-02-27T10:37:52","date_gmt":"2024-02-27T09:37:52","guid":{"rendered":"https:\/\/wp.unil.ch\/geoblog\/?p=11362"},"modified":"2024-02-27T13:35:53","modified_gmt":"2024-02-27T12:35:53","slug":"experimental-and-theoretical-investigations-regarding-the-estimation-of-fracture-compliance-from-full-waveform-sonic-log-data","status":"publish","type":"post","link":"https:\/\/wp.unil.ch\/geoblog\/2024\/02\/experimental-and-theoretical-investigations-regarding-the-estimation-of-fracture-compliance-from-full-waveform-sonic-log-data\/","title":{"rendered":"Experimental and Theoretical Investigations Regarding the Estimation of Fracture Compliance From Full-Waveform Sonic Log Data"},"content":{"rendered":"\n<p class=\"has-background\" style=\"background-color:#f2f2f2\"><em>Th\u00e8se en sciences de la Terre, soutenue le 8 mars 2023 par Zhenya Zhou, rattach\u00e9 \u00e0 l&rsquo;Institut des sciences de la Terre (ISTE) de la FGSE.<\/em><\/p>\n\n\n\n<p>Les fractures dans la cro\u00fbte sup\u00e9rieure de la Terre sont plus souples et perm\u00e9ables que la roche environnante, influen\u00e7ant ainsi de mani\u00e8re significative les propri\u00e9t\u00e9s m\u00e9caniques et hydrauliques des volumes rocheux. La d\u00e9tection et la caract\u00e9risation des fractures sont cruciales pour de nombreuses applications telles que l\u2019exploration des hydrocarbures et l&rsquo;\u00e9nergie g\u00e9othermique.<\/p>\n\n\n<figure style=\"width:329px;height:119px;\" class=\"alignright wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"119\" src=\"https:\/\/wp.unil.ch\/geoblog\/files\/2024\/02\/zhou.jpeg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"\" style=\"height:119px;object-fit:cover;\" srcset=\"https:\/\/wp.unil.ch\/geoblog\/files\/2024\/02\/zhou.jpeg 320w, https:\/\/wp.unil.ch\/geoblog\/files\/2024\/02\/zhou-300x112.jpeg 300w\" sizes=\"auto, (max-width: 320px) 100vw, 320px\" \/><\/figure>\n\n\n<p>Les m\u00e9thodes sismiques, bien connues pour les avantages en termes de p\u00e9n\u00e9tration profonde et de haute r\u00e9solution, sont largement utilis\u00e9es pour la caract\u00e9risation des fractures. Bien que la taille des fractures soit plus petite que les longueurs d&rsquo;onde sismiques, leur impact sur les ondes sismiques est observable et li\u00e9 \u00e0 des propri\u00e9t\u00e9s m\u00e9caniques cl\u00e9s.<\/p>\n\n\n\n<p>Cette th\u00e8se se concentre sur l\u2019estimation de la conformit\u00e9 des fractures en utilisant les ondes P- et S-r\u00e9fract\u00e9es \u00e0 partir de donn\u00e9es sismiques \u00e0 forme d&rsquo;onde compl\u00e8te. L&rsquo;\u00e9tude \u00e9value la performance de plusieurs techniques d&rsquo;estimation de la conformit\u00e9 des fractures bas\u00e9es sur le mod\u00e8le de glissement lin\u00e9aire, sugg\u00e9rant que la m\u00e9thode de retard de phase est plus robuste pour l\u2019&rsquo;estimation de la conformit\u00e9 normale en pr\u00e9sence d&rsquo;une h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 de fond.<\/p>\n\n\n\n<p>Cette m\u00e9thode est ensuite \u00e9tendue pour calculer les conformit\u00e9s normales et de cisaillement pour des fractures inclin\u00e9es. De plus, l&rsquo;approche du retard de phase est g\u00e9n\u00e9ralis\u00e9e pour l&rsquo;estimation de la conformit\u00e9 des fractures dans des sc\u00e9narios impliquant plusieurs fractures.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Th\u00e8se en sciences de la Terre, soutenue le 8 mars 2023 par Zhenya Zhou, rattach\u00e9 \u00e0 l&rsquo;Institut des sciences de la Terre (ISTE) de la FGSE. Les fractures dans la cro\u00fbte sup\u00e9rieure de la Terre sont plus souples et perm\u00e9ables que la roche environnante, influen\u00e7ant ainsi de mani\u00e8re significative les propri\u00e9t\u00e9s m\u00e9caniques et hydrauliques des [&hellip;]<\/p>\n","protected":false},"author":47,"featured_media":11365,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":"","_links_to":"","_links_to_target":""},"categories":[49465],"tags":[],"class_list":{"0":"post-11362","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-theses-soutenues"},"_links":{"self":[{"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/posts\/11362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/users\/47"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/comments?post=11362"}],"version-history":[{"count":5,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/posts\/11362\/revisions"}],"predecessor-version":[{"id":11371,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/posts\/11362\/revisions\/11371"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/media\/11365"}],"wp:attachment":[{"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/media?parent=11362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/categories?post=11362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.unil.ch\/geoblog\/wp-json\/wp\/v2\/tags?post=11362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}