Petrostructural quartz analysis of Vasyugan suite sandstones (Tomsk region deposit)

Petrostructural analysis showed preferential orientation types of elongated quartz grains, both in their form and internal structure. The interpretation of petrostructural patterns showed the formation environment of oil-bearing sandstones. Facies and dynamic sedimentation environments suite coastal-marine conditions, characterized as tide waves with coastal currents of moderate or high velocity. Thus the northeast coastline was determined. Further evolution of initial sediments is subjected to different processes: recrystallization and mineral deformation. Anisotropy formation of oil-bearing sandstones determines their infiltration-capacity properties

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