S.L. Kalamkarov, A.L. Petrov, I.F. Loshakova, G.D. Ukhlova, A.N. Obukhov
Yenisei-Khatanga Petroleum Region: features of oil and gas occurrence in Palaeozoic and Mesozoic structural levels considering tectonic and geochemical data
DOI 10.47148/0016-7894-2024-1-7-26
Key words: Yenisei-Khatanga Regional Trough; Tareisky swell; clinoforms; oil and gas source rocks; specific gravity of hydrocarbon generation; ranges of hydrocarbon generation.
For citation: Kalamkarov S.L., Petrov A.L., Loshakova I.F., Ukhlova G.D., Obukhov A.N. Yenisei-Khatanga Petroleum Region: features of oil and gas occurrence in Palaeozoic and Mesozoic structural levels considering tectonic and geochemical data. Geologiya nefti i gaza. 2024;(1):7–26. DOI: 10.47148/0016-7894-2024-1-7-26. In Russ.
The authors present the detailed geoseismic models of Palaeozoic and Mesozoic reference reflectors of the Yenisei-Khatanga Regional Trough. Regional structural and formational as well as paleotectonic analyses are carried out to evaluate settings of oil and gas paleoaccumulation formation and reformation. The results of geochemical studies of Organic Matter of Palaeozoic-Mesozoic deposits in the Yenisei-Khatanga Regional Trough and neighbouring lands are summarised. Possible kitchen areas that participated in hydrocarbon pool formation are determined. The following possible oil and gas generation levels in Palaeozoic interval of the joint zone of Yenisei-Khatanga Petroleum Area and West Taimyr possible oil and gas bearing region are identified: Lower Cambrian, Upper Ordovician, Lower Silurian, Devonian, and Carboniferous-Permian. The appraisal of hydrocarbon generation and expulsion is given for the Mesozoic commercially oil and gas producing interval. Mutual effect of Palaeozoic and Mesozoic petroleum systems and influence of Triassic tectonic events and folding on reformation of Palaeozoic hydrocarbon accumulations is described. The association of the near-flank Tetoyakhsky and Tareisky swells with clinoform zones of the Yenisei-Khatanga Regional Trough is revealed. A new promising oil and gas accumulation zone is identified in the zone of Yenisei-Khatanga Regional Trough and Taimyr Highland joint according to structural and tectonic as well as geochemical criteria — the Tareisky-Tetoyakhsky zone that is determined by near-flank swells.
Sergei L. Kalamkarov ORCiD
Senior researcher
All-Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: kalamkarov@vnigni.ru
Aleksandr L. Petrov ORCiD
Researcher
All-Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: a.petrov@vnigni.ru
Inna F. Loshakova ORCiD
Leading geophysicist
All-Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: loshakova@vnigni.ru
Ukhlova Galina Dadar-oolovna ORCiD
Candidate of Geological and Mineralogical Sciences
All-Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: ukhlova@vnigni.ru
Aleksandr N. Obukhov ORCiD
Doctor of Geological and Mineralogical Sciences
All-Russian Research
Geological Oil Institute,
36, Shosse Entuziastov, Moscow, 105118, Russia
e-mail: obukhov@vnigni.ru
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