Coupled Modeling of Sedimentary Basin and Geomechanics: A Modified Drucker–Prager Cap Model to Describe Rock Compaction in Tectonic Context.
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| Title: | Coupled Modeling of Sedimentary Basin and Geomechanics: A Modified Drucker–Prager Cap Model to Describe Rock Compaction in Tectonic Context. |
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| Authors: | Guy, N.1 (AUTHOR) nicolas.guy@ifpen.fr, Colombo, D.1 (AUTHOR), Frey, J.1 (AUTHOR), Cornu, T.2 (AUTHOR), Cacas-Stentz, M. C.1 (AUTHOR) |
| Source: | Rock Mechanics & Rock Engineering. Oct2019, Vol. 52 Issue 10, p3627-3643. 17p. |
| Subjects: | Sedimentary basins, Compacting, Soil mechanics, Rocks |
| Abstract: | The aim of basin modeling is to characterise fluids and rocks in a basin considering its history and data partly describing its present state. In usual basin simulators, only a simplified description of geomechanics based on the hypothesis of oedometric strain is used. To both enhance the modeling of basin history and to characterise actual in situ stresses, the effect of stress redistribution, horizontal stresses, and strain variations during basin history should be considered. To address this point, a coupled basin-geomechanics framework based on a new constitutive law is proposed in this paper using the prototype simulator A 2 . This framework has been built to provide relevant results for various kinds of basin cases including tectonic loading. A finite strain poromechanical approach is considered along with an modified Drucker–Prager Cap model to describe rock compaction under natural sedimentation, erosion, and tectonics. The constitutive model can be seen as a tensorial extension of the compaction models of Athy or Schneider as it allows to recover the same behaviour in oedometric context. Simple test cases are modeled considering typical sand or shale properties, emphasizing the effect of tectonic loading on the present-day pore pressures and in situ stresses. It appears that even relatively moderate tectonic loading ( 5 % of horizontal strain) can lead to overpressures of several hundreds of bars and to a complete change in in situ stress regime for deeply buried layers (above a depth of 2000 m). [ABSTRACT FROM AUTHOR] |
| Copyright of Rock Mechanics & Rock Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Coupled Modeling of Sedimentary Basin and Geomechanics: A Modified Drucker–Prager Cap Model to Describe Rock Compaction in Tectonic Context. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Guy%2C+N%2E%22">Guy, N.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> nicolas.guy@ifpen.fr</i><br /><searchLink fieldCode="AR" term="%22Colombo%2C+D%2E%22">Colombo, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Frey%2C+J%2E%22">Frey, J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cornu%2C+T%2E%22">Cornu, T.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cacas-Stentz%2C+M%2E+C%2E%22">Cacas-Stentz, M. C.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Rock+Mechanics+%26+Rock+Engineering%22">Rock Mechanics & Rock Engineering</searchLink>. Oct2019, Vol. 52 Issue 10, p3627-3643. 17p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Sedimentary+basins%22">Sedimentary basins</searchLink><br /><searchLink fieldCode="DE" term="%22Compacting%22">Compacting</searchLink><br /><searchLink fieldCode="DE" term="%22Soil+mechanics%22">Soil mechanics</searchLink><br /><searchLink fieldCode="DE" term="%22Rocks%22">Rocks</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The aim of basin modeling is to characterise fluids and rocks in a basin considering its history and data partly describing its present state. In usual basin simulators, only a simplified description of geomechanics based on the hypothesis of oedometric strain is used. To both enhance the modeling of basin history and to characterise actual in situ stresses, the effect of stress redistribution, horizontal stresses, and strain variations during basin history should be considered. To address this point, a coupled basin-geomechanics framework based on a new constitutive law is proposed in this paper using the prototype simulator A 2 . This framework has been built to provide relevant results for various kinds of basin cases including tectonic loading. A finite strain poromechanical approach is considered along with an modified Drucker–Prager Cap model to describe rock compaction under natural sedimentation, erosion, and tectonics. The constitutive model can be seen as a tensorial extension of the compaction models of Athy or Schneider as it allows to recover the same behaviour in oedometric context. Simple test cases are modeled considering typical sand or shale properties, emphasizing the effect of tectonic loading on the present-day pore pressures and in situ stresses. It appears that even relatively moderate tectonic loading ( 5 % of horizontal strain) can lead to overpressures of several hundreds of bars and to a complete change in in situ stress regime for deeply buried layers (above a depth of 2000 m). [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Rock Mechanics & Rock Engineering is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00603-019-01783-y Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 17 StartPage: 3627 Subjects: – SubjectFull: Sedimentary basins Type: general – SubjectFull: Compacting Type: general – SubjectFull: Soil mechanics Type: general – SubjectFull: Rocks Type: general Titles: – TitleFull: Coupled Modeling of Sedimentary Basin and Geomechanics: A Modified Drucker–Prager Cap Model to Describe Rock Compaction in Tectonic Context. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Guy, N. – PersonEntity: Name: NameFull: Colombo, D. – PersonEntity: Name: NameFull: Frey, J. – PersonEntity: Name: NameFull: Cornu, T. – PersonEntity: Name: NameFull: Cacas-Stentz, M. C. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 07232632 Numbering: – Type: volume Value: 52 – Type: issue Value: 10 Titles: – TitleFull: Rock Mechanics & Rock Engineering Type: main |
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