Kazakhstan journal for oil & gas industryKazakhstan journal for oil & gas industry2707-42262957-806XKMG Engineering10894410.54859/kjogi108944Sedimentological conditions of the Jurassic deposits of Southern Zhetybai and their role in the formation of productive horizonsKozhalakovaAizhan Ashikovnaaizhan.m.n@mail.ruhttps://orcid.org/0009-0000-7964-5538YespolovaNesibeli IsagalievnaN.Yespolova@kmge.kzhttps://orcid.org/0000-0003-4768-2881841401202628072026Copyright © , Kozhalakova A.A., Yespolova N.I.<p>The study and construction of a conceptual model of reservoir sedimentation conditions is closely linked to the assessment of hydrocarbon reserves. Accurate and detailed sedimentological analysis of core material is a critical step in creating a reliable geological model of a field. This article presents the results of a sedimentological analysis of Jurassic core material.</p>1.1. 1. Alekseev V.P. Lithological and facies analysis: An educational and methodological guide to practical exercises and independent work in the discipline "Lithology", Yekaterinburg, UGGA Publishing House, 200, 147 p.2.2. M.N. Alekseev et al., "Atlas of paleogeographic maps. The shelves of Eurasia in the Mesozoic and Cenozoic", Geological Institute of the USSR Academy of Sciences, 1992.3.3. Seilacher A., Trace fossil analysis, Springer, 2007, 237 p., ISBN: 978-3-540-47225-44.4. Nichols G., Sedimentology and Stratigraphy (2nd ed.), Wiley-Blackwell, 2009, 237 p., ISBN 978-1-450-13592-4