Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights

In order to enhance the knowledge of shale objectives from Vaca Muerta and Los Molles Formations in the Neuquén Basin, Argentina, chemostratigraphic and mud gas carbon isotope analyses were performed in two wells from Agua del Cajón and Salitral oilfields (ADC-1016 and NqSa-1148). Geochemical data s...

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Guardado en:
Detalles Bibliográficos
Publicado: 2016
Materias:
Carbon isotopes
Natural gas
Neuquén basin
Reversal
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23174889_v46_n_p181_Ostera
http://hdl.handle.net/20.500.12110/paper_23174889_v46_n_p181_Ostera
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_23174889_v46_n_p181_Ostera
record_format dspace
spelling paper:paper_23174889_v46_n_p181_Ostera2023-06-08T16:35:36Z Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights Carbon isotopes Natural gas Neuquén basin Reversal In order to enhance the knowledge of shale objectives from Vaca Muerta and Los Molles Formations in the Neuquén Basin, Argentina, chemostratigraphic and mud gas carbon isotope analyses were performed in two wells from Agua del Cajón and Salitral oilfields (ADC-1016 and NqSa-1148). Geochemical data show restricted levels in both cases to perforate and produce. In ADC-1016 well, Lower Los Molles Formation looks like the most suitable play to be produced. At El Salitral oilfield (NqSa-1148), the best remarkable Vaca Muerta-Quintuco objectives are associated with authigenic elements, in limited horizons. Enhancement of the Quintuco reservoir by deep circulating fluids (thermobaric reservoir) is suggested. Carbon isotope analysis reveals complex processes that affected the gas composition. Addition of microbial methane, biodegradation of ethane-propane and mixing of gases has been recognized. Isotope reversals and presumed water reforming of hydrocarbons have been registered associated with overpressure for Lower Los Molles Formation in the ADC-1016 well, which is pointed out as the most promising shale play in the area. Vaca Muerta gases at Agua del Cajon ADC-1016 well are associated with the homonymous source. El Salitral 1148 well shows that primary isotope composition in gases from Vaca Muerta shale play and Quintuco reservoir could be associated with a Lower Los Molles source, an aloctonous charge related with the main structures of the area. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23174889_v46_n_p181_Ostera http://hdl.handle.net/20.500.12110/paper_23174889_v46_n_p181_Ostera
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Carbon isotopes
Natural gas
Neuquén basin
Reversal
spellingShingle Carbon isotopes
Natural gas
Neuquén basin
Reversal
Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights
topic_facet Carbon isotopes
Natural gas
Neuquén basin
Reversal
description In order to enhance the knowledge of shale objectives from Vaca Muerta and Los Molles Formations in the Neuquén Basin, Argentina, chemostratigraphic and mud gas carbon isotope analyses were performed in two wells from Agua del Cajón and Salitral oilfields (ADC-1016 and NqSa-1148). Geochemical data show restricted levels in both cases to perforate and produce. In ADC-1016 well, Lower Los Molles Formation looks like the most suitable play to be produced. At El Salitral oilfield (NqSa-1148), the best remarkable Vaca Muerta-Quintuco objectives are associated with authigenic elements, in limited horizons. Enhancement of the Quintuco reservoir by deep circulating fluids (thermobaric reservoir) is suggested. Carbon isotope analysis reveals complex processes that affected the gas composition. Addition of microbial methane, biodegradation of ethane-propane and mixing of gases has been recognized. Isotope reversals and presumed water reforming of hydrocarbons have been registered associated with overpressure for Lower Los Molles Formation in the ADC-1016 well, which is pointed out as the most promising shale play in the area. Vaca Muerta gases at Agua del Cajon ADC-1016 well are associated with the homonymous source. El Salitral 1148 well shows that primary isotope composition in gases from Vaca Muerta shale play and Quintuco reservoir could be associated with a Lower Los Molles source, an aloctonous charge related with the main structures of the area.
title Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights
title_short Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights
title_full Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights
title_fullStr Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights
title_full_unstemmed Shale gas plays, Neuquén Basin, Argentina: Chemostratigraphy and mud gas carbon isotopes insights
title_sort shale gas plays, neuquén basin, argentina: chemostratigraphy and mud gas carbon isotopes insights
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_23174889_v46_n_p181_Ostera
http://hdl.handle.net/20.500.12110/paper_23174889_v46_n_p181_Ostera
_version_ 1768541821381640192

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