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Potential-productive intervals determination of the Tutleim formation in the central part of the Krasnoleninsky arch

M.M. Fomina, N.S. Balushkina, O.V. Khotylev, A.G. Kalmykov, I.Ya. Bogatyreva, G.A. Kalmykov, I.O. Reutskaya, S.A. Romanenko, M.S. Topchy, A.A. Alekhin

Original article

DOI https://doi.org/10.18599/grs.2021.2.13

132-141
rus.

open access

Under a Creative Commons license
The article presents the results of the Tutleim formation complex studies of core from 16 wells drilled on an area of 900 km2 near the Kamennaya crest of the Krasnoleninsky arch. The area is characterized by the variability of the structural plan, preserved from the time of deposits sedimentation, that might affect the structure of formation. Regionally traceable lithological units were used to describe different types of sections, which were firmly recorded on the core and on the logs. The article presents the results of the sections correlation, that shows the variability of the Tutleim formation through the area, identifies typical sections for the submerged, slope and crestal parts of the investigated field. The section may contain two reservoir intervals of different types: radiolarite and siliceous-phosphate layers with average porosity values of 7% and 15%, respectively. The radiolarite layers form the main potential-productive intervals, that are found in all types of sections on one or two stratigraphic levels: in the crestal sections only in the third unit, in the slope and submerged sections – in the first, second and third units. The phosphorite layer in the fifth unit is a characteristic singularity only of the crestal sections. The obtained results allow predicting the distribution of the potential-productive intervals of the Tutleim formation and its stratigraphic analogues in different areas with higher accuracy.
 
 

Tutleim Formation, potential-productive intervals, radiolarite reservoirs, phosphorite, paleorelief, streams, upwelling

 

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Maria M. Fomina
National Intellectual Development Foundation
27, build. 1, Lomonosovsky ave., Moscow, 119192, Russian Federation

Natalia S. Balushkina
Petroleum Geology Department, Lomonosov Moscow State University.
1, Leninskie gory, Moscow, 119234, Russian Federation

Oleg V. Khotylev
National Intellectual Development Foundation
27, build. 1, Lomonosovsky ave., Moscow, 119192, Russian Federation

Anton G. Kalmykov
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation

Georgy A. Kalmykov
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation

Inna O. Reutskaya
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation

Stefaniya A. Romanenko
National Intellectual Development Foundation
27, build. 1, Lomonosovsky ave., Moscow, 119192, Russian Federation

Mariya S. Topchy
National Intellectual Development Foundation
27, build. 1, Lomonosovsky ave., Moscow, 119192, Russian Federation

Alexander A. Alekhin
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation

 

For citation:

Fomina M.M., Balushkina N.S., Khotylev O.V., Kalmykov A.G., Bogatyreva I.Ya., Kalmykov G.A., Reutskaya I.O., Romanenko S.A., Topchy M.S., Alekhin A.A. (2021). Potential-productive intervals determination of the Tutleim formation in the central part of the Krasnoleninsky arch. Georesursy = Georesources, 23(2), pp. 132–141. DOI: https://doi.org/10.18599/grs.2021.2.13