Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina

Autores
Ravazzoli, Claudia Leonor; Panizza, Guido
Año de publicación
2023
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The evaluation of elastic and geomechanic coefficients in reservoir rocks at well scale is needed for their characterization and also for planning drilling and production strategies. This is very important in unconventional organic rich shale reservoirs such as Inoceramus formation, the main source rock in Austral Basin, Argentina. In previous studies we described and quantified the elastic anisotropy of Inoceramus shales (Panizza et al. 2022), using core plugs and ultrasonic velocities. Well logs do not provide enough information to determine the whole stiffness (or compliance) tensors. We show that rock physics tools are highly useful for this problems. We propose a workflow for the calibration of a poroelastic velocity model at in situ differential stress conditions, using well logs and laboratory measurements on cuttings. Our model is based on a combination of the theory porosity-deformation approach (Shapiro & Kaselow 2005, Shapiro, 2017) and Ciz & Shapiro (2007). The calibration procedure involves the utilization of an inversion method to determine model fitting coefficients and physical properties of the organic matter (kerogen).
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Geofísica
organic shales
Palermo Aike
Inoceramus
rock physics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/166820
Acceder
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spelling Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, ArgentinaRavazzoli, Claudia LeonorPanizza, GuidoGeofísicaorganic shalesPalermo AikeInoceramusrock physicsThe evaluation of elastic and geomechanic coefficients in reservoir rocks at well scale is needed for their characterization and also for planning drilling and production strategies. This is very important in unconventional organic rich shale reservoirs such as Inoceramus formation, the main source rock in Austral Basin, Argentina. In previous studies we described and quantified the elastic anisotropy of Inoceramus shales (Panizza et al. 2022), using core plugs and ultrasonic velocities. Well logs do not provide enough information to determine the whole stiffness (or compliance) tensors. We show that rock physics tools are highly useful for this problems. We propose a workflow for the calibration of a poroelastic velocity model at in situ differential stress conditions, using well logs and laboratory measurements on cuttings. Our model is based on a combination of the theory porosity-deformation approach (Shapiro & Kaselow 2005, Shapiro, 2017) and Ciz & Shapiro (2007). The calibration procedure involves the utilization of an inversion method to determine model fitting coefficients and physical properties of the organic matter (kerogen).Facultad de Ciencias Astronómicas y Geofísicas2023-10-05info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionObjeto de conferenciahttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/166820enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:44:25Zoai:sedici.unlp.edu.ar:10915/166820Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:44:25.955SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
title Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
spellingShingle Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
Ravazzoli, Claudia Leonor
Geofísica
organic shales
Palermo Aike
Inoceramus
rock physics
title_short Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
title_full Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
title_fullStr Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
title_full_unstemmed Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
title_sort Calibration of a poroelastic rock physics model from well logs and cuttings: a case study from Inoceramus shale, Austral basin, Argentina
dc.creator.none.fl_str_mv Ravazzoli, Claudia Leonor
Panizza, Guido
author Ravazzoli, Claudia Leonor
author_facet Ravazzoli, Claudia Leonor
Panizza, Guido
author_role author
author2 Panizza, Guido
author2_role author
dc.subject.none.fl_str_mv Geofísica
organic shales
Palermo Aike
Inoceramus
rock physics
topic Geofísica
organic shales
Palermo Aike
Inoceramus
rock physics
dc.description.none.fl_txt_mv The evaluation of elastic and geomechanic coefficients in reservoir rocks at well scale is needed for their characterization and also for planning drilling and production strategies. This is very important in unconventional organic rich shale reservoirs such as Inoceramus formation, the main source rock in Austral Basin, Argentina. In previous studies we described and quantified the elastic anisotropy of Inoceramus shales (Panizza et al. 2022), using core plugs and ultrasonic velocities. Well logs do not provide enough information to determine the whole stiffness (or compliance) tensors. We show that rock physics tools are highly useful for this problems. We propose a workflow for the calibration of a poroelastic velocity model at in situ differential stress conditions, using well logs and laboratory measurements on cuttings. Our model is based on a combination of the theory porosity-deformation approach (Shapiro & Kaselow 2005, Shapiro, 2017) and Ciz & Shapiro (2007). The calibration procedure involves the utilization of an inversion method to determine model fitting coefficients and physical properties of the organic matter (kerogen).
Facultad de Ciencias Astronómicas y Geofísicas
description The evaluation of elastic and geomechanic coefficients in reservoir rocks at well scale is needed for their characterization and also for planning drilling and production strategies. This is very important in unconventional organic rich shale reservoirs such as Inoceramus formation, the main source rock in Austral Basin, Argentina. In previous studies we described and quantified the elastic anisotropy of Inoceramus shales (Panizza et al. 2022), using core plugs and ultrasonic velocities. Well logs do not provide enough information to determine the whole stiffness (or compliance) tensors. We show that rock physics tools are highly useful for this problems. We propose a workflow for the calibration of a poroelastic velocity model at in situ differential stress conditions, using well logs and laboratory measurements on cuttings. Our model is based on a combination of the theory porosity-deformation approach (Shapiro & Kaselow 2005, Shapiro, 2017) and Ciz & Shapiro (2007). The calibration procedure involves the utilization of an inversion method to determine model fitting coefficients and physical properties of the organic matter (kerogen).
publishDate 2023
dc.date.none.fl_str_mv 2023-10-05
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
Objeto de conferencia
http://purl.org/coar/resource_type/c_5794
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/166820
url http://sedici.unlp.edu.ar/handle/10915/166820
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
dc.format.none.fl_str_mv application/pdf
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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