{"id":215,"date":"2018-10-20T12:05:44","date_gmt":"2018-10-20T12:05:44","guid":{"rendered":"https:\/\/wp.ux.uis.no\/pabas\/?p=215"},"modified":"2018-10-20T13:41:03","modified_gmt":"2018-10-20T13:41:03","slug":"evidences-for-pre-jurassic-oils-in-the-north-sea","status":"publish","type":"post","link":"https:\/\/wp.ux.uis.no\/pabas\/2018\/10\/20\/evidences-for-pre-jurassic-oils-in-the-north-sea\/","title":{"rendered":"Evidences for Pre-Jurassic oils in the North Sea"},"content":{"rendered":"<p><strong>Embla field producing oil from Permian and Devonian reservoirs: <\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-198\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Seismic_Embla.png\" alt=\"\" width=\"904\" height=\"660\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Seismic_Embla.png 904w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Seismic_Embla-300x219.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Seismic_Embla-768x561.png 768w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Seismic_Embla-135x100.png 135w\" sizes=\"auto, (max-width: 904px) 100vw, 904px\" \/><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n<strong>Reservoir sand with GC trace of produced oil:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-217\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure1.png\" alt=\"\" width=\"1420\" height=\"477\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure1.png 1420w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure1-300x101.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure1-768x258.png 768w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure1-1024x344.png 1024w\" sizes=\"auto, (max-width: 1420px) 100vw, 1420px\" \/><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n<strong>Core plugs of Embla rhyolites with GC of biodegraded oil, and re-generated waxy oil from the biodegraded oil. The latter was trapped in fluid inclusions roughly 200Ma ago, ie. Pre-Jurassic: <\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-218\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure2.png\" alt=\"\" width=\"1489\" height=\"358\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure2.png 1489w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure2-300x72.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure2-768x185.png 768w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure2-1024x246.png 1024w\" sizes=\"auto, (max-width: 1489px) 100vw, 1489px\" \/><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n<strong>Typical Kimmeridge oil with low wax, concave n-alkane profile, absence of gammacerane whereas Paleozoic sourced oils are different:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-225\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure3.png\" alt=\"\" width=\"1370\" height=\"745\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure3.png 1370w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure3-300x163.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure3-768x418.png 768w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure3-1024x557.png 1024w\" sizes=\"auto, (max-width: 1370px) 100vw, 1370px\" \/><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n<strong>Pre-Jurassic oil from the North Sea characterized by even\/odd predominance and high ETR:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-222\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure4.png\" alt=\"\" width=\"1272\" height=\"381\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure4.png 1272w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure4-300x90.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure4-768x230.png 768w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure4-1024x307.png 1024w\" sizes=\"auto, (max-width: 1272px) 100vw, 1272px\" \/><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n<strong>Light oil fraction of some North Sea oils. Some show a pattern suggesting that they originate from a carbonate source:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-223\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure5.png\" alt=\"\" width=\"779\" height=\"610\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure5.png 779w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure5-300x235.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure5-768x601.png 768w\" sizes=\"auto, (max-width: 779px) 100vw, 779px\" \/><br \/>\n&nbsp;<br \/>\n&nbsp;<br \/>\n<strong>Isotopically very light Paleozoic derived oils are clearly differentiated from isotopically heavier U. Jurassic derived oil and from the isotopically heaviest coal derived oils:<\/strong><br \/>\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure6.png\" alt=\"\" width=\"1433\" height=\"620\" class=\"alignleft size-full wp-image-237\" srcset=\"https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure6.png 1433w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure6-300x130.png 300w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure6-768x332.png 768w, https:\/\/wp.ux.uis.no\/pabas\/wp-content\/uploads\/sites\/4\/2018\/10\/Figure6-1024x443.png 1024w\" sizes=\"auto, (max-width: 1433px) 100vw, 1433px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Embla field producing oil from Permian and Devonian reservoirs: &nbsp; &nbsp; Reservoir sand with GC trace of produced oil: &nbsp; &nbsp; Core plugs of Embla rhyolites with GC of biodegraded oil, and re-generated waxy oil from the biodegraded oil. The latter was trapped in fluid inclusions roughly 200Ma ago, ie. Pre-Jurassic: &nbsp; &nbsp; Typical Kimmeridge [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":223,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-215","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/posts\/215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/comments?post=215"}],"version-history":[{"count":11,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/posts\/215\/revisions"}],"predecessor-version":[{"id":238,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/posts\/215\/revisions\/238"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/media\/223"}],"wp:attachment":[{"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.ux.uis.no\/pabas\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}