Mechanical Behavior of Coupled Elastoplastic Damage of Clastic Sandstone of Different Burial Depths
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Yu | - |
dc.contributor.author | Wang, Lu | - |
dc.contributor.author | Zi, Goangseup | - |
dc.contributor.author | Zhang, Yan | - |
dc.date.accessioned | 2021-08-31T04:52:16Z | - |
dc.date.available | 2021-08-31T04:52:16Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-04 | - |
dc.identifier.issn | 1996-1073 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/56807 | - |
dc.description.abstract | Clastic sandstone is widely distributed in oil and gas reservoirs; its internal structure has many micro-defects. Under different stress environments of burial depth, significant damage evolution and plastic deformation easily occur. A series of triaxial compression tests were performed to study the coupled elastoplastic damage mechanical behavior of clastic sandstone samples at different burial depths ranging from 581.28 m to 979.82 m. Results reveal that the stress -strain responses of clastic sandstone samples exhibit significant nonlinear and softening characteristics. The mechanical behavior is due to the coupling of plastic deformation and mechanical damage. Plastic and damage internal variables cause damage stiffness degradation and plastic flow. Considering the coupling of elastoplastic damage in the loading process, an elastoplastic damage coupling model is proposed to study the mechanical behavior of different burial depth clastic sandstones. The model can effectively describe the mechanical behavior of clastic sandstone, such as the volume compression and dilatancy transformation, plastic hardening and damage softening, which are in good agreement with the experimental results. Furthermore, the mechanical behavior of the clastic sandstone shows a dependency on the confining pressure and burial depth. The load-bearing capacity and the ability to resist deformation of the clastic sandstone are improved as the confining pressure and burial depth increase. Relevant results can provide reliable basis for the safe exploitation of oil and gas engineering. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | MDPI | - |
dc.subject | PERMEABILITY | - |
dc.subject | MODEL | - |
dc.subject | PARAMETERS | - |
dc.subject | RESERVOIR | - |
dc.subject | GRANITE | - |
dc.subject | ROCK | - |
dc.title | Mechanical Behavior of Coupled Elastoplastic Damage of Clastic Sandstone of Different Burial Depths | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Zi, Goangseup | - |
dc.identifier.doi | 10.3390/en13071640 | - |
dc.identifier.scopusid | 2-s2.0-85082777562 | - |
dc.identifier.wosid | 000537688400109 | - |
dc.identifier.bibliographicCitation | ENERGIES, v.13, no.7 | - |
dc.relation.isPartOf | ENERGIES | - |
dc.citation.title | ENERGIES | - |
dc.citation.volume | 13 | - |
dc.citation.number | 7 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.subject.keywordPlus | PERMEABILITY | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | PARAMETERS | - |
dc.subject.keywordPlus | RESERVOIR | - |
dc.subject.keywordPlus | GRANITE | - |
dc.subject.keywordPlus | ROCK | - |
dc.subject.keywordAuthor | clastic sandstone | - |
dc.subject.keywordAuthor | elastoplastic damage | - |
dc.subject.keywordAuthor | elastoplastic damage coupling model | - |
dc.subject.keywordAuthor | burial depth | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.