Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia

Autores
Veizaga Saavedra, Juan Gonzalo; Poire, Daniel Gustavo; Vergani, Gustavo Dardo; Salfity, Jose Antonio
Año de publicación
2014
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The object of this study is the evaluation of the black shales of the Los Monos Formation as an unconventional shale oil and shale gas reservoir. To this end, the sedimentology and mineralogy of Los Monos Formation at Balapuca (22°31?00"S, 64°26?00"W), in southern Bolivia immediately north of the limit with Argentina is studied. A sedimentological profile was taken from this unit (140 m) and a total of 48 samples were analyzed by X-ray diffraction on total rock and clays fraction. Los Monos Formation (late Eifellian-early Frasnian) is the typical mother rock of the north Argentine and south Bolivian Andean environment. Disalvo and Villar (1998) postulated the division of this unit according to its geochemical characteristics. They determined a lower section with a greater content of badly preserved amorphous kerogene (type III/IV), a probable gas generator, and an upper section with predominance of type II/III kerogenes of mixed marine-continental origin generating gas and oil. However, other studies (Cerqueira and Schulz, 1998; di Pascuo, 2007) indicate different distributions. Furthermore, the kerogene dilution in the rock (1% total organic carbon TOC, Disalvo and Villar, 1998) and its fair quality (average original S2 pyrolysis peaks estimated at no greater than 400mg HC/g TOC) would indicate that expulsion and migration have not been efficient. Therefore, there are still important volumes of generated hydrocarbons dispersed within the shales, a phenomenon also evinced by super pressure and manifestations during perforation. The poor quality of mother rock generation is compensated by the potent subsoil (700-1000 m) and broad area distribution (Disalvo and Villar, 1998). In the area of interest, Los Monos Formation is characterized by decimetric to centimetric intercalations of laminated, micaceous black shales and fine to medium grained grayish psammites in small waves and HCS (hummocky cross stratification), in tabular and lenticular banks. There are also thin layers of brown limolite intercalation. Abundant vegetable fragments, bioturbations and badly preserved plants are visible in both shales and psammites. On the basis of sedimentological characteristics, these would correspond to distal platform facies (Disalvo and Villar 1998).
Fil: Veizaga Saavedra, Juan Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Poire, Daniel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Vergani, Gustavo Dardo. No especifíca;
Fil: Salfity, Jose Antonio. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Geología Argentina y Sudamericana; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
XIV Reunión Argentina de Sedimentología
Puerto Madryn
Argentina
Asociación Argentina de Sedimentología
Materia
BLACK SHALE
LOS MONOS FORMATION
RESERVOIR
DEVONIAN
BOLIVIA
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:11336/232915
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/232915
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern BoliviaVeizaga Saavedra, Juan GonzaloPoire, Daniel GustavoVergani, Gustavo DardoSalfity, Jose AntonioBLACK SHALELOS MONOS FORMATIONRESERVOIRDEVONIANBOLIVIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The object of this study is the evaluation of the black shales of the Los Monos Formation as an unconventional shale oil and shale gas reservoir. To this end, the sedimentology and mineralogy of Los Monos Formation at Balapuca (22°31?00"S, 64°26?00"W), in southern Bolivia immediately north of the limit with Argentina is studied. A sedimentological profile was taken from this unit (140 m) and a total of 48 samples were analyzed by X-ray diffraction on total rock and clays fraction. Los Monos Formation (late Eifellian-early Frasnian) is the typical mother rock of the north Argentine and south Bolivian Andean environment. Disalvo and Villar (1998) postulated the division of this unit according to its geochemical characteristics. They determined a lower section with a greater content of badly preserved amorphous kerogene (type III/IV), a probable gas generator, and an upper section with predominance of type II/III kerogenes of mixed marine-continental origin generating gas and oil. However, other studies (Cerqueira and Schulz, 1998; di Pascuo, 2007) indicate different distributions. Furthermore, the kerogene dilution in the rock (1% total organic carbon TOC, Disalvo and Villar, 1998) and its fair quality (average original S2 pyrolysis peaks estimated at no greater than 400mg HC/g TOC) would indicate that expulsion and migration have not been efficient. Therefore, there are still important volumes of generated hydrocarbons dispersed within the shales, a phenomenon also evinced by super pressure and manifestations during perforation. The poor quality of mother rock generation is compensated by the potent subsoil (700-1000 m) and broad area distribution (Disalvo and Villar, 1998). In the area of interest, Los Monos Formation is characterized by decimetric to centimetric intercalations of laminated, micaceous black shales and fine to medium grained grayish psammites in small waves and HCS (hummocky cross stratification), in tabular and lenticular banks. There are also thin layers of brown limolite intercalation. Abundant vegetable fragments, bioturbations and badly preserved plants are visible in both shales and psammites. On the basis of sedimentological characteristics, these would correspond to distal platform facies (Disalvo and Villar 1998).Fil: Veizaga Saavedra, Juan Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina. Universidad Nacional del Comahue; ArgentinaFil: Poire, Daniel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; ArgentinaFil: Vergani, Gustavo Dardo. No especifíca;Fil: Salfity, Jose Antonio. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Geología Argentina y Sudamericana; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaXIV Reunión Argentina de SedimentologíaPuerto MadrynArgentinaAsociación Argentina de SedimentologíaAsociación Argentina de SedimentologíaAllard, Jose OscarKrause, Javier MarceloFoix, Nicolas2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/232915Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia; XIV Reunión Argentina de Sedimentología; Puerto Madryn; Argentina; 2014; 289-290978-987-96296-5-9CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://sedimentologia.org.ar/ras/XIVRAS_libro.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:02:09Zoai:ri.conicet.gov.ar:11336/232915instacron: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:34982025-10-15 15:02:09.853CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
title Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
spellingShingle Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
Veizaga Saavedra, Juan Gonzalo
BLACK SHALE
LOS MONOS FORMATION
RESERVOIR
DEVONIAN
BOLIVIA
title_short Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
title_full Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
title_fullStr Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
title_full_unstemmed Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
title_sort Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia
dc.creator.none.fl_str_mv Veizaga Saavedra, Juan Gonzalo
Poire, Daniel Gustavo
Vergani, Gustavo Dardo
Salfity, Jose Antonio
author Veizaga Saavedra, Juan Gonzalo
author_facet Veizaga Saavedra, Juan Gonzalo
Poire, Daniel Gustavo
Vergani, Gustavo Dardo
Salfity, Jose Antonio
author_role author
author2 Poire, Daniel Gustavo
Vergani, Gustavo Dardo
Salfity, Jose Antonio
author2_role author
author
author
dc.contributor.none.fl_str_mv Allard, Jose Oscar
Krause, Javier Marcelo
Foix, Nicolas
dc.subject.none.fl_str_mv BLACK SHALE
LOS MONOS FORMATION
RESERVOIR
DEVONIAN
BOLIVIA
topic BLACK SHALE
LOS MONOS FORMATION
RESERVOIR
DEVONIAN
BOLIVIA
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 object of this study is the evaluation of the black shales of the Los Monos Formation as an unconventional shale oil and shale gas reservoir. To this end, the sedimentology and mineralogy of Los Monos Formation at Balapuca (22°31?00"S, 64°26?00"W), in southern Bolivia immediately north of the limit with Argentina is studied. A sedimentological profile was taken from this unit (140 m) and a total of 48 samples were analyzed by X-ray diffraction on total rock and clays fraction. Los Monos Formation (late Eifellian-early Frasnian) is the typical mother rock of the north Argentine and south Bolivian Andean environment. Disalvo and Villar (1998) postulated the division of this unit according to its geochemical characteristics. They determined a lower section with a greater content of badly preserved amorphous kerogene (type III/IV), a probable gas generator, and an upper section with predominance of type II/III kerogenes of mixed marine-continental origin generating gas and oil. However, other studies (Cerqueira and Schulz, 1998; di Pascuo, 2007) indicate different distributions. Furthermore, the kerogene dilution in the rock (1% total organic carbon TOC, Disalvo and Villar, 1998) and its fair quality (average original S2 pyrolysis peaks estimated at no greater than 400mg HC/g TOC) would indicate that expulsion and migration have not been efficient. Therefore, there are still important volumes of generated hydrocarbons dispersed within the shales, a phenomenon also evinced by super pressure and manifestations during perforation. The poor quality of mother rock generation is compensated by the potent subsoil (700-1000 m) and broad area distribution (Disalvo and Villar, 1998). In the area of interest, Los Monos Formation is characterized by decimetric to centimetric intercalations of laminated, micaceous black shales and fine to medium grained grayish psammites in small waves and HCS (hummocky cross stratification), in tabular and lenticular banks. There are also thin layers of brown limolite intercalation. Abundant vegetable fragments, bioturbations and badly preserved plants are visible in both shales and psammites. On the basis of sedimentological characteristics, these would correspond to distal platform facies (Disalvo and Villar 1998).
Fil: Veizaga Saavedra, Juan Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. YPF - Tecnología; Argentina. Universidad Nacional del Comahue; Argentina
Fil: Poire, Daniel Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones Geológicas. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Investigaciones Geológicas; Argentina
Fil: Vergani, Gustavo Dardo. No especifíca;
Fil: Salfity, Jose Antonio. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Geología Argentina y Sudamericana; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
XIV Reunión Argentina de Sedimentología
Puerto Madryn
Argentina
Asociación Argentina de Sedimentología
description The object of this study is the evaluation of the black shales of the Los Monos Formation as an unconventional shale oil and shale gas reservoir. To this end, the sedimentology and mineralogy of Los Monos Formation at Balapuca (22°31?00"S, 64°26?00"W), in southern Bolivia immediately north of the limit with Argentina is studied. A sedimentological profile was taken from this unit (140 m) and a total of 48 samples were analyzed by X-ray diffraction on total rock and clays fraction. Los Monos Formation (late Eifellian-early Frasnian) is the typical mother rock of the north Argentine and south Bolivian Andean environment. Disalvo and Villar (1998) postulated the division of this unit according to its geochemical characteristics. They determined a lower section with a greater content of badly preserved amorphous kerogene (type III/IV), a probable gas generator, and an upper section with predominance of type II/III kerogenes of mixed marine-continental origin generating gas and oil. However, other studies (Cerqueira and Schulz, 1998; di Pascuo, 2007) indicate different distributions. Furthermore, the kerogene dilution in the rock (1% total organic carbon TOC, Disalvo and Villar, 1998) and its fair quality (average original S2 pyrolysis peaks estimated at no greater than 400mg HC/g TOC) would indicate that expulsion and migration have not been efficient. Therefore, there are still important volumes of generated hydrocarbons dispersed within the shales, a phenomenon also evinced by super pressure and manifestations during perforation. The poor quality of mother rock generation is compensated by the potent subsoil (700-1000 m) and broad area distribution (Disalvo and Villar, 1998). In the area of interest, Los Monos Formation is characterized by decimetric to centimetric intercalations of laminated, micaceous black shales and fine to medium grained grayish psammites in small waves and HCS (hummocky cross stratification), in tabular and lenticular banks. There are also thin layers of brown limolite intercalation. Abundant vegetable fragments, bioturbations and badly preserved plants are visible in both shales and psammites. On the basis of sedimentological characteristics, these would correspond to distal platform facies (Disalvo and Villar 1998).
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/232915
Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia; XIV Reunión Argentina de Sedimentología; Puerto Madryn; Argentina; 2014; 289-290
978-987-96296-5-9
CONICET Digital
CONICET
url http://hdl.handle.net/11336/232915
identifier_str_mv Evaluation of the black shales of the Los Monos Formation (Devonian) as an unconventional shale oil and shales gas reservoir, Balapuca, southern Bolivia; XIV Reunión Argentina de Sedimentología; Puerto Madryn; Argentina; 2014; 289-290
978-987-96296-5-9
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://sedimentologia.org.ar/ras/XIVRAS_libro.pdf
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
dc.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociación Argentina de Sedimentología
publisher.none.fl_str_mv Asociación Argentina de Sedimentología
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 13.22299

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