Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina

Autores
Sruoga, Patricia; Rubinstein, Nora Alicia; Hinterwimmer, Gerardo
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Middle to Late Jurassic Serie Tobífera belongs to the Chon-Aike Province and extends all over Patagonia and the Antarctic Peninsula. It consists largely of ignimbrites, epiclastics and rhyolitic lavas and was considered only a minor reservoir rock for oil with fracture permeability. Petrographic and petrophysical data in selected core samples from the Austral Basin were collected to determine the processes controlling the porosity and permeability of these volcanic rocks. The sequence of processes occurring during cooling and in the post-cooling stages can modify, sometimes substantially, their original petrophysic characteristics. The results show that the highest porosity and permeability occur in rocks with quench fractured glasses and in non-welded ignimbrites with gas-pipe structures, followed by autobrecciated rhyolites. Welded ignimbrites, massive glasses and fresh rhyolites have the lowest permeabilities. The new data indicate that tectonic fracturing is not as significant as was considered before and application of these concepts are relevant in the assesment of volcanic reservoir quality.
Fil: Sruoga, Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; Argentina
Fil: Rubinstein, Nora Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina
Fil: Hinterwimmer, Gerardo. CHEVRON; Argentina
Materia
Permeability
Porosity
South Patagonia
Tobífera
Volcanics
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/83500
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, ArgentinaSruoga, PatriciaRubinstein, Nora AliciaHinterwimmer, GerardoPermeabilityPorositySouth PatagoniaTobíferaVolcanicshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Middle to Late Jurassic Serie Tobífera belongs to the Chon-Aike Province and extends all over Patagonia and the Antarctic Peninsula. It consists largely of ignimbrites, epiclastics and rhyolitic lavas and was considered only a minor reservoir rock for oil with fracture permeability. Petrographic and petrophysical data in selected core samples from the Austral Basin were collected to determine the processes controlling the porosity and permeability of these volcanic rocks. The sequence of processes occurring during cooling and in the post-cooling stages can modify, sometimes substantially, their original petrophysic characteristics. The results show that the highest porosity and permeability occur in rocks with quench fractured glasses and in non-welded ignimbrites with gas-pipe structures, followed by autobrecciated rhyolites. Welded ignimbrites, massive glasses and fresh rhyolites have the lowest permeabilities. The new data indicate that tectonic fracturing is not as significant as was considered before and application of these concepts are relevant in the assesment of volcanic reservoir quality.Fil: Sruoga, Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; ArgentinaFil: Rubinstein, Nora Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; ArgentinaFil: Hinterwimmer, Gerardo. CHEVRON; ArgentinaElsevier Science2004-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/83500Sruoga, Patricia; Rubinstein, Nora Alicia; Hinterwimmer, Gerardo; Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina; Elsevier Science; Journal of Volcanology and Geothermal Research; 132; 1; 4-2004; 31-430377-0273CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027303004190info:eu-repo/semantics/altIdentifier/doi/10.1016/S0377-0273(03)00419-0info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-01-14T12:18:37Zoai:ri.conicet.gov.ar:11336/83500instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982026-01-14 12:18:37.907CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
title Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
spellingShingle Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
Sruoga, Patricia
Permeability
Porosity
South Patagonia
Tobífera
Volcanics
title_short Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
title_full Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
title_fullStr Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
title_full_unstemmed Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
title_sort Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina
dc.creator.none.fl_str_mv Sruoga, Patricia
Rubinstein, Nora Alicia
Hinterwimmer, Gerardo
author Sruoga, Patricia
author_facet Sruoga, Patricia
Rubinstein, Nora Alicia
Hinterwimmer, Gerardo
author_role author
author2 Rubinstein, Nora Alicia
Hinterwimmer, Gerardo
author2_role author
author
dc.subject.none.fl_str_mv Permeability
Porosity
South Patagonia
Tobífera
Volcanics
topic Permeability
Porosity
South Patagonia
Tobífera
Volcanics
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Middle to Late Jurassic Serie Tobífera belongs to the Chon-Aike Province and extends all over Patagonia and the Antarctic Peninsula. It consists largely of ignimbrites, epiclastics and rhyolitic lavas and was considered only a minor reservoir rock for oil with fracture permeability. Petrographic and petrophysical data in selected core samples from the Austral Basin were collected to determine the processes controlling the porosity and permeability of these volcanic rocks. The sequence of processes occurring during cooling and in the post-cooling stages can modify, sometimes substantially, their original petrophysic characteristics. The results show that the highest porosity and permeability occur in rocks with quench fractured glasses and in non-welded ignimbrites with gas-pipe structures, followed by autobrecciated rhyolites. Welded ignimbrites, massive glasses and fresh rhyolites have the lowest permeabilities. The new data indicate that tectonic fracturing is not as significant as was considered before and application of these concepts are relevant in the assesment of volcanic reservoir quality.
Fil: Sruoga, Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Secretaría de Industria y Minería. Servicio Geológico Minero Argentino; Argentina
Fil: Rubinstein, Nora Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina
Fil: Hinterwimmer, Gerardo. CHEVRON; Argentina
description The Middle to Late Jurassic Serie Tobífera belongs to the Chon-Aike Province and extends all over Patagonia and the Antarctic Peninsula. It consists largely of ignimbrites, epiclastics and rhyolitic lavas and was considered only a minor reservoir rock for oil with fracture permeability. Petrographic and petrophysical data in selected core samples from the Austral Basin were collected to determine the processes controlling the porosity and permeability of these volcanic rocks. The sequence of processes occurring during cooling and in the post-cooling stages can modify, sometimes substantially, their original petrophysic characteristics. The results show that the highest porosity and permeability occur in rocks with quench fractured glasses and in non-welded ignimbrites with gas-pipe structures, followed by autobrecciated rhyolites. Welded ignimbrites, massive glasses and fresh rhyolites have the lowest permeabilities. The new data indicate that tectonic fracturing is not as significant as was considered before and application of these concepts are relevant in the assesment of volcanic reservoir quality.
publishDate 2004
dc.date.none.fl_str_mv 2004-04
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/83500
Sruoga, Patricia; Rubinstein, Nora Alicia; Hinterwimmer, Gerardo; Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina; Elsevier Science; Journal of Volcanology and Geothermal Research; 132; 1; 4-2004; 31-43
0377-0273
CONICET Digital
CONICET
url http://hdl.handle.net/11336/83500
identifier_str_mv Sruoga, Patricia; Rubinstein, Nora Alicia; Hinterwimmer, Gerardo; Porosity and permeability in volcanic rocks: A case study on the Serie Tobífera, South Patagonia, Argentina; Elsevier Science; Journal of Volcanology and Geothermal Research; 132; 1; 4-2004; 31-43
0377-0273
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0377027303004190
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0377-0273(03)00419-0
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.603104

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