The paper presents a comprehensive analysis of new data for drilling and seismic survey of the oil and gas potential of deep-seated Paleozoic horizons of the Caspian Basin in Kazakhstan. The features of the development and occurrence of large Paleozoic uplifts and sedimentary strata promising for prospecting are specified. A set of geological and geophysical methods was applied, and magnetic and gravitational anomalies of potential fields were analyzed in the southern, southeastern, and eastern marginal parts of the southeastern sector of the Caspian Basin. This is supplemented with new data obtained by a set of reconnaissance methods, and the section attributed to the Paleozoic at depths up to 5.5–8.0 km and its Devonian–Lower Carboniferous sequence are specified. New data were obtained on the area of distribution and occurrence of Upper Devonian and Lower Carboniferous sediments, geological conditions and prerequisites were revealed that refined the trace of the pre-Devonian complex and of the Lower–Middle Devonian sediments. Analysis of the distribution of large local prospecting objects has confirmed the presence and development of megauplifts, which are zones of hypsometrically elevated Devonian–Lower Carboniferous sediments. In the contour of the megauplift, structural elements have developed that are less significant, but promising in terms of hydrocarbon content. Based on the results of studying and refining the distribution patterns of large Devonian‒Lower Carboniferous objects and identifying megauplifts, it is possible to optimize regional studies in the Caspian Basin for the period of 2020–2030.

本文对哈萨克斯坦里海盆地深部古生界的油气潜力进行钻探和地震勘探的新数据进行了综合分析。指出了大型古生界隆起和沉积地层的发育和发生特征，有希望进行勘探。应用了一套地质和地球物理方法，并分析了里海盆地东南部的南部，东南部和东部边缘部分的潜在磁场的磁和重力异常。这是通过一套侦察方法获得的新数据的补充，并指定了古生代最深5.5-8.0 km的剖面及其泥盆纪-下石炭统。获得了上泥盆纪和下石炭统沉积物的分布和发生的新数据，揭示了地质条件和前提条件，这些条件完善了前泥盆纪复合体和下中泥盆统沉积物的痕迹。对大型本地勘探对象分布的分析已证实巨型隆升的存在和发展，巨型隆升是由测深法测得的泥盆纪-低石炭纪沉积物带。在巨型隆起的轮廓上，已开发出重要性不高但在烃含量方面很有前途的结构元素。根据研究和完善大型泥盆纪-下石炭统天体的分布模式并确定大型隆升的结果，可以优化里海盆地在2020-2030年期间的区域研究。