Elastic and Filtration Properties of Coal by Adsorption Test Data Based on Inverse Problem Solution

Leonid A. Nazarov, Larisa A. Nazarova, Matthieu Vandamme, Jean Michel Pereira, Iliass Tahiri

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

Abstract

The 2D geomechanical model of a test on confined adsorption deformation of cylindrical rock specimens and the numerical-analytical method to solve the related boundary problem based on coordinate-wise averaging of a system of equations of poroelasticity for orthotropic media have been developed. It is shown that the axial and radial strains measured in the test are proportional to the volume-average adsorption stresses. Using the test results, the authors formulate and solve the coefficient inverse problem "determination of deformation characteristics and permeability of coal matrix". It is found that the matrix permeability is lower than efficient permeability of a core by three orders of magnitude, which is conditioned by the natural damage structure of coal.

Original languageEnglish
Title of host publicationPoromechanics 2017 - Proceedings of the 6th Biot Conference on Poromechanics
PublisherAmerican Society of Civil Engineers (ASCE)
Pages278-286
Number of pages9
ISBN (Electronic)9780784480779
DOIs
Publication statusPublished - 2017
Event6th Biot Conference on Poromechanics, Poromechanics 2017 - Paris, France
Duration: 9 Jul 201713 Jul 2017

Conference

Conference6th Biot Conference on Poromechanics, Poromechanics 2017
CountryFrance
CityParis
Period09.07.201713.07.2017

Fingerprint Dive into the research topics of 'Elastic and Filtration Properties of Coal by Adsorption Test Data Based on Inverse Problem Solution'. Together they form a unique fingerprint.

Cite this