Studies of the anisotropy of the microstructure of oil and gas reservoir rocks by electron microscopy methods

The paper presents the features of applying the scanning electron microscopy method for studying the anisotropy of the pore space of carbonate rocks in oil and gas reservoirs. The results of studies into the horizontal anisotropy of the microstructure and pore space are presented. The significance of the pore space horizontal anisotropy for filtration properties, which should be taken into account during the development of 3D-hydrodynamic models of hydrocarbon deposits, has been experimentally found for rocks with a complex structure.