The nature of the gas content of the Nejelinsky formation
https://doi.org/10.25587/2587-8751-2023-4-26-32
Abstract
The paper deals with the issue of regional gas content of Nejelinsky formation of the Lower Triassic. Based on the consideration of the peculiarities of the gas content of Nejelinsky formation and the upper productive horizons of the Permian age within the Khapchagai megawall; it is concluded that there are two types of deposits in the section of Nejelinsky formation. The first type of deposits is gas-hydrodynamically limited in the volume of Nejelinsky formation and is genetically related to breakthrough gases from the Permian part of the section. The second type of deposits is gas-hydrodynamically related to deposits in the upper part of the Permian productive horizon. Due to the lack of its own gas formation potential in Nejelinsky formation outside the Khapchagai and Loglorsky shafts; it can only be considered as an effective fluid barrier. It is concluded that in the absence of isolated deposits in Nejelinsky formation; favorable reservoir properties in the Permian part of the section should be expected.
About the Authors
A. I. Sivtsev
M. K. Ammosov North-Eastern Federal University
Russian Federation
Russian Federation
Sivtsev Aleksei Ivanovich – Candidate of Geological and Mineralogical Sciences; Associate Professor
Yakutsk
I. V. Rudykh
M. K. Ammosov North-Eastern Federal University
Russian Federation
Russian Federation
Rudykh Ivan Vasilievich – Associate Professor; Department of Applied Geology; Faculty of Geology and Survey
Yakutsk
N. A. Sivtsev
M. K. Ammosov North-Eastern Federal University
Russian Federation
Russian Federation
Sivtsev Nikolay Alekseevich – Master's student; Institute of Natural Sciences
Yakutsk
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Review
For citations:
Sivtsev A.I., Rudykh I.V., Sivtsev N.A. The nature of the gas content of the Nejelinsky formation. Vestnik of North-Eastern Federal University Series "Earth Sciences". 2023;(4):26-32. (In Russ.) https://doi.org/10.25587/2587-8751-2023-4-26-32
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