Upper Jurassic Oil of Vilyuisk Syneclise
Abstract
In the late 70-ies of the last century oil and gas exploration in Yakutia changed its orientation from the Late Paleozoic Lower Mesozoic sediments of Vilyuisk syneclise to the Late Precambrian Lower Paleozoic sediments of the Nepsko-Botuobinsk anteclise. At the same time, the degree of exploration of Vilyuisk syneclise remained very low and non-uniform. Detection of oil rims on gas condensate fields of Hapchagaysk megaswell in the Permian Upper Jurassic deposits of Vilyuisk syneclise indicates about oil-bearing of Leno-Vilyuisk province. A brief description of recorded showings of oil in wells on Bergeinsk and Oloi structures is presented. Identity in the composition and distribution of hydrocarbons biomarkers in oils of Bergeinsk and Oloi area indicates the genetic relationship of these oils with organic matter of higher terrestrial vegetation. Producing stratum of these oils can serve as the Permian and the Upper Jurassic deposits. These data lead to the assumption of certain prospects of opening of gas-oil and oil deposits in the Permian Upper Jurassic deposits of Vilyuisk syneclise.
About the Authors
Aleksandr Fedotovich SafronovRussian Federation
Aleksey Ivanovich Sivtsev
Russian Federation
Olga Nikolaevna Chalaya
Russian Federation
Iraida Nikolaevna Zueva
Russian Federation
Vadim Borisovich Chernenko
Russian Federation
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Review
For citations:
Safronov A.F., Sivtsev A.I., Chalaya O.N., Zueva I.N., Chernenko V.B. Upper Jurassic Oil of Vilyuisk Syneclise. Arctic and Subarctic Natural Resources. 2016;21(2):31-34. (In Russ.)