DOI: 10.24412/2076-6785-2022-1-22-28
Abstract
One of the main problems of petroleum geology and development is research and modeling of void space heterogeneity and its properties in the reservoir rocks. Carbonate deposits, as a rule, contain of reservoir rocks which have highly intricate structure and distribution of pore space. Their formation is influenced by many factors: tectonic processes, paleogeographic environments, depositional environments, evolution of biological communities (biocenoses), and the post-sedimentary processes. The article discusses the regional factors of the Timan-Pechora province (TPP) for three large oil and gas complexes: the Silurian-Lower Devonian, Upper Devonian-Tournaisian and Permian-Carboniferous; highlights the results of the characteristics and comparative analysis of the void space in various structural components of rocks; identification of the spatial distribution patterns and properties of the void space.
Materials and methods
In this study, were research over 1000 core plates in 15 wells from 9 fields. Associated with them petrophysical cylinders and thin sections were analyzed by using optical and electron microscopy, computed X-ray tomography and image analysis of void space (in stained thin sections). The studies of petrophysical cylinders were carried out at “LUKOIL-Engineering” LLC. The rest of the listed studies were carried out at the Department of Lithology at the Gubkin RSU of oil and gas.
Keywords
carbonate reservoir, reservoir rocks, voids, wettability, Timan-Pechora province, paleosoic
