Microscopic mechanical model of the main structural element of Bazhenov Suite reservoir rocks

A. S. Grigoriev, E. V. Shilko, S. G. Psakhie, A. E. Kontorovich

Research output: Contribution to journalConference articlepeer-review

Abstract

We propose a microscale model of the main structural element ("bearing" layers) of kerogen-clay-carbonate-siliceous rocks of the Bazhenov formation. The model treats the rock as a composite material with inorganic clay matrix and different content of organic inclusions (up to 25%) and micropores filled with low-viscous fluid (light hydrocarbon fractions). A computer simulation of the mechanical behavior of representative samples of structural elements of the studied rock under triaxial compression was carried out using the hybrid cellular automaton method and a coupled mechanical model that takes into account the mutual influence of porous rock deformation and filtration of a pore fluid. It is shown that the mechanical behavior of the "bearing" layer of rock at side pressures that meet the characteristic conditions of occurrence is satisfactorily described by rock plasticity models with two-parameter flow functions.

Original languageEnglish
Article number012019
Number of pages7
JournalJournal of Physics: Conference Series
Volume1268
Issue number1
DOIs
Publication statusPublished - 16 Jul 2019
Externally publishedYes
EventAll-Russian Conference and School for Young Scientists, devoted to 100th Anniversary of Academician L.V. Ovsiannikov on Mathematical Problems of Continuum Mechanics, MPCM 2019 - Novosibirsk, Russian Federation
Duration: 13 May 201917 May 2019

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