LITHOLOGY AND PALEODEPOSITIONAL ENVIRONMENT ANALYSIS OF PERMIAN SEDIMENTS IN CONNECTION WITH OIL AND GAS POTENTIAL IN THE SOUTH-KHRESTYSHCHE AREA IN THE DNIEPER-DONETS BASIN

Abstract

The aim of this work to study the integration of modern geological and geophysical methods for identifying stratigraphic traps. Permian deposits of the Dnieper-Donets depression were selected for the analysis. These deposits are characterized by inconsistency of productive horizons and the sandstone bodies formation. Direct indicators of the hydrocarbons, various characteristics of the seismic wave field, lithological classification and analysis of the reservoir properties of rocks were used. The available literature data on the oil and gas development and production from the Permian deposits and geophysical data were used for a comprehensive analysis. Geophysical data was presented by well logging data and seismic data. consolidated geological section across the Dnieper-Donets depression was constructed by geophysical data. The geological section gave information about the modern occurrence of the Permian sediments. Seismic surveys was used for attribute analysis. Attribute analysis give us zones with possible hydrocarbon contents and improved reservoir properties. This method shows the role of seismic studies in determining the lithology and oil and gas content of the studied strata. The combination of lithology, seismic data and information about paleodepositional environment allowed us to identificate unconventional hydrocarbon traps.