Abstract
On the base of unique geochemical studies of the core samples from two exploration wells interstratal movement of heavy oil hydrocarbons has been revealed in the section of Rogozhnik-ov and North-Rogozhnikov deposits of the Krasnoleninsk dome (West Siberia). Geochemical model of vertical migration of heavy oil hydrocarbons has been plotted where those compounds have been distinguished which are capable of interstratal movement, the form of migration has been proposed and the distance of movement of substances in the section has been estimated. The distance of vertical interstratal migration of aromatic hydrocarbons makes it possible to recommend their anomalous concentrations as direct prospecting criteria. Migration of oil hydrocarbons from the sedimentary cover to basement deposits has been revealed.
Highlights
Òîìñê, Ðîññèÿ 3Öåíòð ãåîëîãè÷åñêîãî ñîïðîâîæäåíèÿ äåÿòåëüíîñòè ÎÀÎ Ñóðãóòíåôòåãàç, Ñóðãóò, Ðîññèÿ 4ÃÓÏ Íàó÷íî-àíàëèòè÷åñêèé öåíòð ðàöèîíàëüíîãî ïðèðîäîïîëüçîâàíèÿ èì
Geochemical model of vertical migration of heavy oil hydrocarbons has been plotted where those compounds have been distinguished which are capable of interstratal movement, the form of migration has been proposed and the distance of movement of substances in the section has been estimated
The distance of vertical interstratal migration of aromatic hydrocarbons makes it possible to recommend their anomalous concentrations as direct prospecting criteria
Summary
Ïåðåñëàèâàíèå àëåâðîëèòîâ ñåðî-çåëåíûõ, ìåëêîçåðíèñòûõ ñ àðãèëëèòîì ÷åðíûì, ïëîòíûì, êðåïêèì ñ ñîäåðæàíèåì ôàóíû. Àðãèëëèòû ÷åðíûå, ïëîòíûå, êðåïêèå, ñ ëèíçàìè àëåâðîëèòà ñåðîãî, ìåëêîçåðíèñòîãî ñ ñîäåðæàíèåì ôàóíû. Àðãèëëèòû ÷åðíûå, ïëîòíûå, êðåïêèå, ìàññèâíûå, ñ ðåäêèìè ïðîñëîÿìè ïåñ÷àíèêà ìåëêîçåðíèñòîãî ñ âûïîòàìè íåôòè. Àðãèëëèò îò òåìíî-ñåðîãî äî ÷åðíîãî, ïëîòíûé, êðåïêèé, áèòóìèíîçíûé, ñ âûïîòàìè íåôòè, ñëîèñòûé. Àðãèëëèò êîðè÷íåâûé, ìåñòàìè òåìíî-ñåðûé, ïëîòíûé, êðåïêèé, ñ âêëþ÷åíèÿìè ïèðèòà, áèòóìèíîçíûé, ñ ôàóíîé, çàìåùåííûé óãëèñòûì âåùåñòâîì, ñ çàïàõîì íåôòè. Àëåâðîëèò òåìíî-ñåðûé, ìåëêîçåðíèñòûé, ïëîòíûé, ñ ôëîðîé, çàìåùåííîé óãëèñòûì âåùåñòâîì, áèòóìèíîçíûé. Ïåñ÷àíèê ñåðûé, ìåëêîçåðíèñòûé, êðåïêèé, êîñîñëîèñòûé, ñ ðåäêèìè ïðîñëîÿìè àðãèëëèòà ÷åðíîãî öâåòà. Ïåñ÷àíèê ñåðûé, ñðåäíåçåðíèñòûé, êðåïêèé, ïëîòíûé, ñ ïðîñëîÿìè òåìíî-ñåðîãî, ìåëêîçåðíèñòîãî àëåâðîëèòà è ÷åðíîãî àðãèëëèòà. Àëåâðîëèò òåìíî-ñåðûé, íà èçëîìå êîðè÷íåâûé, ïëîòíûé, ñ ôëîðîé, çàìåùåííîé óãëèñòûì âåùåñòâîì, áèòóìèíîçíûé. Êâàðöèòîâûé ïåñ÷àíèê, öâåò îò çåëåíîãî äî áåëîãî, ñêðûòîêðèñòàëëè÷åñêèé, êðåïêèé, î÷åíü ïëîòíûé. Òóôîïåñ÷àíèê, öâåò îò ãðÿçíî-çåëåíîãî äî ñåðî-ãîëóáîãî, ìåëêîçåðíèñòûé, î÷åíü êðåïêèé. Òóôîïåñ÷àíèê îò ãðÿçíî-çåëåíîãî äî ñåðî-ãîëóáîãî, ìåëêîçåðíèñòûé, î÷åíü êðåïêèé, íà èçâåñòêîâîì öåìåíòå ñ êâàðöåì.
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