Determination of features of the geological structure of Lower Aptian formation of West Siberian on basis of refined lithological-facial model of reservoir AV1 1-2

Agishev E.R. RN-BashNIPIneft LLC Ufa
Zhdanov L.M. RN-BashNIPIneft LLC Ufa
Ramadanov A.V. ramanton@yandex.ru RN-BashNIPIneft LLC Ufa
Ramadanova D.A. RN-BashNIPIneft LLC Ufa
Voronina A.N. RN-BashNIPIneft LLC Ufa
Kararova A.Z. RN-BashNIPIneft LLC Ufa
DOI: 10.24412/2076-6785-2022-2-20-23

Abstract
In this paper, the authors refine the geological-facial model of sandy-silty-clayey rocks of the AV1 1-2 horizon with ryabchik texture. The work is based on new coring data in intervals of weakly permeable strongly clayey reservoirs. The conducted studies updated current understanding of lithofacies features of the reservoir. Based on results of the presented analysis, an own petrophysical reservoir model is based, which makes it possible to increase detail of identification productive intervals and establish petrophysical dependencies.

Materials and methods
Detailed description and studies of core material, geophysical well logging. Statistical processing of core data, lithofacies analysis, well correlation.

Keywords
complicated low-permeability reservoir, lithologic-facial model, ryabchik reservoir, hard-to-recover reserves
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