Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina

Autores
Pons, María Josefina; Rainoldi, Ana Laura; Franchini, Marta Beatriz; Giusiano, Adolfo Eugenio; Cesaretti, Nora Noemi; Beaufort, D.; Patrier, P.; Impiccini, Agnes
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Portezuelo Formation is part of a red bed sequence in the Neuquén Basin assigned to the Neuquén Group (Lower Cenomanian-Middle Campanian). In outcrops of the Portezuelo Formation in the Barda González region, iron oxide and hydroxide cements are only preserved in the less permeable claystone layers. Paleo-migration of hydrocarbons and formation waters along the most permeable layers bleached the rocks due to partial- to total dissolution of cements and grains and formation of several authigenic minerals: 1) montmorillonite and pyrite in the medium- to fine-grained sandstones and mudstones, and 2) multi-stage calcite and pyrite in the coarse-grained sandstones and conglomerates.The δ34SCDT of -24.4 to -60? values in pyrite point to microbial reduction of a sulfate precursor. The oxidation of hydrocarbons and fluctuations in pH and PCO2 caused by organic acids resulted in multiple stages of dissolution and precipitation of calcite. Calcite crystals host hydrocarbon-bearing fluid inclusions (± pyrite) with variable fluorescence colour, indicating that hydrocarbon composition changed with time. The intermediate δ13CPDB (−8.11? to −8.52?) and δ18OPDB (−9.76 to −9.87?) isotope composition of calcites may have resulted from mixtures of 13C-rich CO2 after the dissolution of local calcrete with 13C-poor CO2 from oxidizing hydrocarbons. This contribution provides for the first time key information to predict the distribution of authigenic minerals in reservoir rocks in the basin and improves understanding of the diagenetic history of the Portezuelo Formation.
Fil: Pons, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Rainoldi, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Franchini, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Giusiano, Adolfo Eugenio. Dirección Provincial de Hidrocarburos y Energía de la Provincia del Neuquén; Argentina
Fil: Cesaretti, Nora Noemi. Universidad Nacional del Sur; Argentina
Fil: Beaufort, D.. Université de Poitiers; Francia
Fil: Patrier, P.. Université de Poitiers; Francia
Fil: Impiccini, Agnes. Universidad Nacional del Comahue; Argentina. Universidad Nacional de Río Negro; Argentina
Materia
Hydrocarbons
Authigenic
Cements
Portezuelo
Formation
Dorsal
Huincul
Faults
Neuquén
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:11336/40971
Acceder
id CONICETDig_5134a75156b9e072e639e5d104933dc4
oai_identifier_str oai:ri.conicet.gov.ar:11336/40971
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, ArgentinaPons, María JosefinaRainoldi, Ana LauraFranchini, Marta BeatrizGiusiano, Adolfo EugenioCesaretti, Nora NoemiBeaufort, D.Patrier, P.Impiccini, AgnesHydrocarbonsAuthigenicCementsPortezueloFormationDorsalHuinculFaultsNeuquénhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Portezuelo Formation is part of a red bed sequence in the Neuquén Basin assigned to the Neuquén Group (Lower Cenomanian-Middle Campanian). In outcrops of the Portezuelo Formation in the Barda González region, iron oxide and hydroxide cements are only preserved in the less permeable claystone layers. Paleo-migration of hydrocarbons and formation waters along the most permeable layers bleached the rocks due to partial- to total dissolution of cements and grains and formation of several authigenic minerals: 1) montmorillonite and pyrite in the medium- to fine-grained sandstones and mudstones, and 2) multi-stage calcite and pyrite in the coarse-grained sandstones and conglomerates.The δ34SCDT of -24.4 to -60? values in pyrite point to microbial reduction of a sulfate precursor. The oxidation of hydrocarbons and fluctuations in pH and PCO2 caused by organic acids resulted in multiple stages of dissolution and precipitation of calcite. Calcite crystals host hydrocarbon-bearing fluid inclusions (± pyrite) with variable fluorescence colour, indicating that hydrocarbon composition changed with time. The intermediate δ13CPDB (−8.11? to −8.52?) and δ18OPDB (−9.76 to −9.87?) isotope composition of calcites may have resulted from mixtures of 13C-rich CO2 after the dissolution of local calcrete with 13C-poor CO2 from oxidizing hydrocarbons. This contribution provides for the first time key information to predict the distribution of authigenic minerals in reservoir rocks in the basin and improves understanding of the diagenetic history of the Portezuelo Formation.Fil: Pons, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; ArgentinaFil: Rainoldi, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro; ArgentinaFil: Franchini, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue; Argentina. Universidad Nacional de Río Negro; ArgentinaFil: Giusiano, Adolfo Eugenio. Dirección Provincial de Hidrocarburos y Energía de la Provincia del Neuquén; ArgentinaFil: Cesaretti, Nora Noemi. Universidad Nacional del Sur; ArgentinaFil: Beaufort, D.. Université de Poitiers; FranciaFil: Patrier, P.. Université de Poitiers; FranciaFil: Impiccini, Agnes. Universidad Nacional del Comahue; Argentina. Universidad Nacional de Río Negro; ArgentinaAmerican Association of Petroleum Geologists2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/40971Pons, María Josefina; Rainoldi, Ana Laura; Franchini, Marta Beatriz; Giusiano, Adolfo Eugenio; Cesaretti, Nora Noemi; et al.; Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina; American Association of Petroleum Geologists; AAPG Bulletin; 99; 3; 3-2015; 525-5540149-1423CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://archives.datapages.com/data/bulletns/2015/03mar/BLTN13170/BLTN13170.html?doi=10.1306%2F08131413170info:eu-repo/semantics/altIdentifier/doi/10.1306/08131413170info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:34Zoai:ri.conicet.gov.ar:11336/40971instacron: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:34982025-09-29 10:47:34.42CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
title Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
spellingShingle Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
Pons, María Josefina
Hydrocarbons
Authigenic
Cements
Portezuelo
Formation
Dorsal
Huincul
Faults
Neuquén
title_short Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
title_full Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
title_fullStr Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
title_full_unstemmed Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
title_sort Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina
dc.creator.none.fl_str_mv Pons, María Josefina
Rainoldi, Ana Laura
Franchini, Marta Beatriz
Giusiano, Adolfo Eugenio
Cesaretti, Nora Noemi
Beaufort, D.
Patrier, P.
Impiccini, Agnes
author Pons, María Josefina
author_facet Pons, María Josefina
Rainoldi, Ana Laura
Franchini, Marta Beatriz
Giusiano, Adolfo Eugenio
Cesaretti, Nora Noemi
Beaufort, D.
Patrier, P.
Impiccini, Agnes
author_role author
author2 Rainoldi, Ana Laura
Franchini, Marta Beatriz
Giusiano, Adolfo Eugenio
Cesaretti, Nora Noemi
Beaufort, D.
Patrier, P.
Impiccini, Agnes
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Hydrocarbons
Authigenic
Cements
Portezuelo
Formation
Dorsal
Huincul
Faults
Neuquén
topic Hydrocarbons
Authigenic
Cements
Portezuelo
Formation
Dorsal
Huincul
Faults
Neuquén
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 Portezuelo Formation is part of a red bed sequence in the Neuquén Basin assigned to the Neuquén Group (Lower Cenomanian-Middle Campanian). In outcrops of the Portezuelo Formation in the Barda González region, iron oxide and hydroxide cements are only preserved in the less permeable claystone layers. Paleo-migration of hydrocarbons and formation waters along the most permeable layers bleached the rocks due to partial- to total dissolution of cements and grains and formation of several authigenic minerals: 1) montmorillonite and pyrite in the medium- to fine-grained sandstones and mudstones, and 2) multi-stage calcite and pyrite in the coarse-grained sandstones and conglomerates.The δ34SCDT of -24.4 to -60? values in pyrite point to microbial reduction of a sulfate precursor. The oxidation of hydrocarbons and fluctuations in pH and PCO2 caused by organic acids resulted in multiple stages of dissolution and precipitation of calcite. Calcite crystals host hydrocarbon-bearing fluid inclusions (± pyrite) with variable fluorescence colour, indicating that hydrocarbon composition changed with time. The intermediate δ13CPDB (−8.11? to −8.52?) and δ18OPDB (−9.76 to −9.87?) isotope composition of calcites may have resulted from mixtures of 13C-rich CO2 after the dissolution of local calcrete with 13C-poor CO2 from oxidizing hydrocarbons. This contribution provides for the first time key information to predict the distribution of authigenic minerals in reservoir rocks in the basin and improves understanding of the diagenetic history of the Portezuelo Formation.
Fil: Pons, María Josefina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue. Facultad de Ingeniería. Departamento de Geología y Petróleo; Argentina
Fil: Rainoldi, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Franchini, Marta Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Comahue; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Giusiano, Adolfo Eugenio. Dirección Provincial de Hidrocarburos y Energía de la Provincia del Neuquén; Argentina
Fil: Cesaretti, Nora Noemi. Universidad Nacional del Sur; Argentina
Fil: Beaufort, D.. Université de Poitiers; Francia
Fil: Patrier, P.. Université de Poitiers; Francia
Fil: Impiccini, Agnes. Universidad Nacional del Comahue; Argentina. Universidad Nacional de Río Negro; Argentina
description The Portezuelo Formation is part of a red bed sequence in the Neuquén Basin assigned to the Neuquén Group (Lower Cenomanian-Middle Campanian). In outcrops of the Portezuelo Formation in the Barda González region, iron oxide and hydroxide cements are only preserved in the less permeable claystone layers. Paleo-migration of hydrocarbons and formation waters along the most permeable layers bleached the rocks due to partial- to total dissolution of cements and grains and formation of several authigenic minerals: 1) montmorillonite and pyrite in the medium- to fine-grained sandstones and mudstones, and 2) multi-stage calcite and pyrite in the coarse-grained sandstones and conglomerates.The δ34SCDT of -24.4 to -60? values in pyrite point to microbial reduction of a sulfate precursor. The oxidation of hydrocarbons and fluctuations in pH and PCO2 caused by organic acids resulted in multiple stages of dissolution and precipitation of calcite. Calcite crystals host hydrocarbon-bearing fluid inclusions (± pyrite) with variable fluorescence colour, indicating that hydrocarbon composition changed with time. The intermediate δ13CPDB (−8.11? to −8.52?) and δ18OPDB (−9.76 to −9.87?) isotope composition of calcites may have resulted from mixtures of 13C-rich CO2 after the dissolution of local calcrete with 13C-poor CO2 from oxidizing hydrocarbons. This contribution provides for the first time key information to predict the distribution of authigenic minerals in reservoir rocks in the basin and improves understanding of the diagenetic history of the Portezuelo Formation.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/40971
Pons, María Josefina; Rainoldi, Ana Laura; Franchini, Marta Beatriz; Giusiano, Adolfo Eugenio; Cesaretti, Nora Noemi; et al.; Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina; American Association of Petroleum Geologists; AAPG Bulletin; 99; 3; 3-2015; 525-554
0149-1423
CONICET Digital
CONICET
url http://hdl.handle.net/11336/40971
identifier_str_mv Pons, María Josefina; Rainoldi, Ana Laura; Franchini, Marta Beatriz; Giusiano, Adolfo Eugenio; Cesaretti, Nora Noemi; et al.; Mineralogical signature of hydrocarbon circulation in Cretaceous red beds of the Barda González area, Neuquén Basin, Argentina; American Association of Petroleum Geologists; AAPG Bulletin; 99; 3; 3-2015; 525-554
0149-1423
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://archives.datapages.com/data/bulletns/2015/03mar/BLTN13170/BLTN13170.html?doi=10.1306%2F08131413170
info:eu-repo/semantics/altIdentifier/doi/10.1306/08131413170
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Association of Petroleum Geologists
publisher.none.fl_str_mv American Association of Petroleum Geologists
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
_version_ 1844614520028266496
score 13.069144

Publicaciones similares