• Interpretation of 2D and 3D seismic surveys. • Well logs interpretation (electric logs, KV, GR, NGR, AL, IL). • Wells correlation schemes building. • Structural maps and thickness maps building. • Seismological and geological sections and paleo sections building. • Structural and paleotectonic analyzes. • AVO analysis. • Depositional environments reconstruction of Cretaceous productive horizons. • Paleogeographic schemes building. • Quantitative and qualitative assessment of reservoirs of productive horizons. • Reservoir zones distribution analysis • Oil and gas forecast. • Building of hydrocarbon reservoir models. • Estimation of oil and gas by volume method. • Writing scientific articles and parts of reports. • Participated as an executor in contracts of leading Russian oil and gas companies (Rosneft, Gazprom, Tomskneft, Novatek, etc.) (Annex 1). • Conducted its own research project (RFBR 2018-2020) (Annex 1).