Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths

Article investigates the change in the geophysical properties of rocks in the process of extracting the rock sample from great depths. Evaluation of changes in effective elastic properties, porosity and permeability of rock samples during extraction was carried out by means of finite element modelin...

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Main Authors: Alexey I. Grishchenko, Artem S. Semenov, Boris E. Melnikov
Format: Article
Language:English
Published: Saint-Petersburg Mining University 2021-06-01
Series:Записки Горного института
Subjects:
Online Access:https://pmi.spmi.ru/index.php/pmi/article/view/14618?setLocale=en_US
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author Alexey I. Grishchenko
Artem S. Semenov
Boris E. Melnikov
author_facet Alexey I. Grishchenko
Artem S. Semenov
Boris E. Melnikov
author_sort Alexey I. Grishchenko
collection DOAJ
description Article investigates the change in the geophysical properties of rocks in the process of extracting the rock sample from great depths. Evaluation of changes in effective elastic properties, porosity and permeability of rock samples during extraction was carried out by means of finite element modeling. Assessment of the critical dimensions and orientation of internal defects, leading to the destruction of the rock samples during extraction from great depths, has been made based on the methods of linear destruction mechanics. Approach that makes it possible to calculate the change in the mechanical properties, porosity and fracturing of reservoir rocks in the process of extracting the rock sample from depths to the surface is proposed. Use of refined data on the mechanical properties of recoverable rock samples makes it possible to increase the accuracy of digital geological models required for geological exploration, determination of reservoir properties and oil and gas saturation of a field, and development of oil and gas deposits. Application of such models is especially relevant at all stages of the fields development with hard-to-recover reserves.
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spelling doaj.art-bab217e75a604d3089ca707c9d603f2f2023-01-20T02:04:53ZengSaint-Petersburg Mining UniversityЗаписки Горного института2411-33362541-94042021-06-0124824325210.31897/PMI.2021.2.814618Modeling the processes of deformation and destruction of the rock sample during its extraction from great depthsAlexey I. Grishchenko0https://orcid.org/0000-0001-6029-5670Artem S. Semenov1https://orcid.org/0000-0002-8225-3487Boris E. Melnikov2https://orcid.org/0000-0002-7889-1996Peter the Great St.Petersburg Polytechnic UniversityPeter the Great St.Petersburg Polytechnic UniversityPeter the Great St.Petersburg Polytechnic UniversityArticle investigates the change in the geophysical properties of rocks in the process of extracting the rock sample from great depths. Evaluation of changes in effective elastic properties, porosity and permeability of rock samples during extraction was carried out by means of finite element modeling. Assessment of the critical dimensions and orientation of internal defects, leading to the destruction of the rock samples during extraction from great depths, has been made based on the methods of linear destruction mechanics. Approach that makes it possible to calculate the change in the mechanical properties, porosity and fracturing of reservoir rocks in the process of extracting the rock sample from depths to the surface is proposed. Use of refined data on the mechanical properties of recoverable rock samples makes it possible to increase the accuracy of digital geological models required for geological exploration, determination of reservoir properties and oil and gas saturation of a field, and development of oil and gas deposits. Application of such models is especially relevant at all stages of the fields development with hard-to-recover reserves.https://pmi.spmi.ru/index.php/pmi/article/view/14618?setLocale=en_USrock samplemodelingfinite elements methodelastic propertiesporositydamagecrackdestructionstress-strain state
spellingShingle Alexey I. Grishchenko
Artem S. Semenov
Boris E. Melnikov
Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
Записки Горного института
rock sample
modeling
finite elements method
elastic properties
porosity
damage
crack
destruction
stress-strain state
title Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
title_full Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
title_fullStr Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
title_full_unstemmed Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
title_short Modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
title_sort modeling the processes of deformation and destruction of the rock sample during its extraction from great depths
topic rock sample
modeling
finite elements method
elastic properties
porosity
damage
crack
destruction
stress-strain state
url https://pmi.spmi.ru/index.php/pmi/article/view/14618?setLocale=en_US
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AT artemssemenov modelingtheprocessesofdeformationanddestructionoftherocksampleduringitsextractionfromgreatdepths
AT borisemelnikov modelingtheprocessesofdeformationanddestructionoftherocksampleduringitsextractionfromgreatdepths