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On the Microstructural Orientation of the Pore Space of Rocks: SEM Data

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Abstract—

An approach and an algorithm to find the orientation of the pore space of oil and gas reservoir rocks are proposed based on contrast cathodoluminescence images of the surface of polished sections of the rocks obtained using a scanning electron microscope. The microstructural orientation of the pores is found from electron microscopic images of various rocks with a complex pore-space structure and anisotropy of the filtration properties for rocks of various lithological types. This algorithm makes it possible to solve problems related to the anisotropy of filtration properties in petrophysical studies of rocks. The proposed method of finding the orientation is of great practical importance, because the oriented pore space affects the ways of developing hydrocarbon deposits. Determination of the direction of orientation of the pore space allows one to take into account the deviation of fluid flow during its injection into the well and to improve the coverage of oil-saturated reservoirs.

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Funding

This work was performed within the state assignment “Forecasting the state of the resource base of the oil and gas complex of Russia on the basis of system studies of prospects for the oil and gas potential of natural reservoirs in carbonate, terrigenous, and shale formations” (no. АААА-А19-119030690047-6).

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  1. Oil and Gas Research Institute, Russian Academy of Sciences, 119333, Moscow, Russia

    V. A. Kuzmin

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  1. V. A. Kuzmin
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Correspondence to V. A. Kuzmin.

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Translated by A. Tulyabaev

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Kuzmin, V.A. On the Microstructural Orientation of the Pore Space of Rocks: SEM Data. J. Surf. Investig. 15, 732–737 (2021). https://doi.org/10.1134/S1027451021040108

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