Regularity of Filitration Properties Distribution in Oil Bearing Reservoir with Complex Geological Structure

The main theme of this article is determination and investigation of permeability heterogeneity in oil bearing reservoirs provided on a certain oil field. The complex of methods reflecting the filtration permeability in rocks included: palaeomagnetical, petrophysical, lithological, morphological and microtextural analysis. As a result, of such investigation the directions of improved quartz grains orientation (in sandstones) were determined. Maximum magnetic and acoustic fluctuations are connected with detected directions and confirm the presence of fractured zones and pore space spread in sandstones. Spatial orientation of clastic material is dependent on flow potential and filtration characteristics that control the sedimentary basins and predefine the porous matrix structure and filtration heterogeneity.