{"id":2052,"date":"2008-08-26T08:47:56","date_gmt":"2008-08-26T08:47:56","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2008\/08\/26\/pour-tre-branch\/"},"modified":"2012-07-12T10:53:34","modified_gmt":"2012-07-12T10:53:34","slug":"pour-tre-branch","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2008\/08\/26\/pour-tre-branch\/","title":{"rendered":"Pour \u00eatre \u00ab\u00a0branch\u00e9\u00a0\u00bb dans le p\u00e9trole ou le gaz il faut maintenant parler de \u00ab\u00a0Golden Zone\u00a0\u00bb"},"content":{"rendered":"<p><a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/statoilhydro5.gif\"><img loading=\"lazy\" decoding=\"async\" height=\"41\" alt=\"Statoilhydro\" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/statoilhydro2.gif\" width=\"250\"  \/><\/a>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; Pendant que certains &quot;peak oilers&quot; n&rsquo;arr\u00eatent pas de tracer des courbes en cloches, dont le d\u00e9placement r\u00e9gulier du maximum avec le temps n&rsquo;alt\u00e8re en rien leurs convictions mill\u00e9naristes, d&rsquo;autres, \u00e0 partir de l&rsquo;examen des donn\u00e9es g\u00e9ologiques, \u00e9chaffaudent des sc\u00e9narios de formation du gaz et du p\u00e9trole, afin de leur permettre d&rsquo;\u00eatre plus efficaces dans leur prospection p\u00e9troli\u00e8re. C&rsquo;est le cas de Paul Nadeau, Per Arne Bjorkum et quelques autres de chez StatoilHydro ou de l&rsquo;Universit\u00e9 de Stavanger qui depuis une petite d\u00e9cennie \u00e9laborent des sc\u00e9narios de formations par diag\u00e9n\u00e8se des r\u00e9serves de gaz et de p\u00e9trole. Ils ont observ\u00e9 \u00e0 partir de donn\u00e9es sur plus de 50 mille champs p\u00e9troliers que 90% d&rsquo;entre eux se trouvaient dans des zones g\u00e9ologiques dont les temp\u00e9ratures se situaient <u>entre 60\u00b0C et 120\u00b0C : la Golden Zone<\/u>. Ces chercheurs pensent, contrairement aux id\u00e9es admises jusque l\u00e0, que le gaz et le p\u00e9trole ont pu se former simultan\u00e9ment dans des couches g\u00e9ologiques vers les 120\u00b0C ce qui expliquerait leur coexistence fr\u00e9quente. Ils affirment que les forages p\u00e9troliers &quot;surexplorent&quot; des zones plus profondes, plus chaudes d&rsquo;o\u00f9 le gaz et le p\u00e9trole ont \u00e9t\u00e9 expuls\u00e9s et donc, o\u00f9 les probabilit\u00e9s de pr\u00e9sence de gaz ou de p\u00e9trole sont tr\u00e8s faibles.<\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Cette Golden Zone qui est d\u00e9termin\u00e9e par le gradient thermique du lieu de prospection, se situe g\u00e9n\u00e9ralement entre 2 km et 4 km de profondeur. Mais dans certaines r\u00e9gions \u00e0 fort gradient thermique la zone peut \u00eatre situ\u00e9e entre 1 et 2 km de profondeur (r\u00e9servoirs chauds) alors que dans des zones de faible gradient thermique (r\u00e9servoirs froids) cette zone peut \u00eatre situ\u00e9e entre 4km et 8 km de profondeur. Cette nouvelle approche thermique permet donc d&rsquo;explorer les couches g\u00e9ologiques de fa\u00e7on plus efficace, en particulier dans les zones de champs g\u00e9ants d\u00e9j\u00e0 connus et exploit\u00e9s.<\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;Dans les zones aux temp\u00e9ratures inf\u00e9rieures \u00e0 60\u00b0C, les bact\u00e9ries ayant ingurgit\u00e9 les fractions l\u00e9g\u00e8res du p\u00e9trole, ce sont les p\u00e9troles lourds qui seront d\u00e9couverts.<\/p>\n<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; Ces th\u00e9ories semblent \u00eatre de plus en plus admises par la profession et confirm\u00e9es par les succ\u00e8s r\u00e9cents de prospection de StatoilHydro en Mer du Nord ou en Mer de Barents.<\/p>\n<p>Le 26 Ao\u00fbt 2008.<\/p>\n<p>&#8211;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp;&nbsp; &nbsp; Pendant que certains &quot;peak oilers&quot; n&rsquo;arr\u00eatent pas de tracer des courbes en cloches, dont le d\u00e9placement r\u00e9gulier du maximum avec le temps n&rsquo;alt\u00e8re en rien leurs convictions mill\u00e9naristes, d&rsquo;autres, \u00e0 partir de l&rsquo;examen des donn\u00e9es g\u00e9ologiques, \u00e9chaffaudent des sc\u00e9narios de formation du gaz et du p\u00e9trole, afin [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":9947,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2052","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energie-fossile"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - 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