The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin

The structural study of the petrophysical characteristics and the spatial arrangement of the fracturing in the exposed sedimentary rocks along the eastern edge of the Sierras Australes de Buenos Aires is the main objective of this work. These outcrops correspond to the Tunas Formation of the Pillahu...

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Autor principal: Rossello, E.A.
Formato: JOUR
Materias:
Geo-economics resources
Geomechanics
Natural fracturing reservoirs
Tunas Formation
fractured medium
geomechanics
hydrocarbon reservoir
lithostratigraphy
outcrop
Paleozoic
sedimentary rock
sedimentary sequence
Argentina
Buenos Aires [Argentina]
Claromeco Basin
Sierras Australes
Scombridae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v73_n4_p493_Rossello
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00044822_v73_n4_p493_Rossello2023-10-03T13:59:13Z The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin Rossello, E.A. Geo-economics resources Geomechanics Natural fracturing reservoirs Tunas Formation fractured medium geomechanics hydrocarbon reservoir lithostratigraphy outcrop Paleozoic sedimentary rock sedimentary sequence Argentina Buenos Aires [Argentina] Claromeco Basin Sierras Australes Scombridae The structural study of the petrophysical characteristics and the spatial arrangement of the fracturing in the exposed sedimentary rocks along the eastern edge of the Sierras Australes de Buenos Aires is the main objective of this work. These outcrops correspond to the Tunas Formation of the Pillahuincó Group (upper Paleozoic), being the closest and correlated with the sedimentary sequences located in the adjacent foreland Claromecó basin. According to available subsurface information the paleozoic sequences have potential hydrocarbon generation from the pelitic levels and coals swarms that could be source rocks placed on reservoirs levels with adequate porosity to become conventional and other with fractured levels of unconventional. Structural diagrams obtained from themesotectonic 1.134 data can recognize a responsible stressfield whose maximum principal stress was placed with NE-SW direction. The potential types of discontinuities able to improve the petrophysical properties of reservoir fluids in the adjacent Claromecó basin are the following fractures: 1) parallel to the stratification, 2) coincident with the cleavage axial plane, 3) dilatant filled by quartz and4) subvertical shear fractures. In the case of interventions of potential reservoirs made from exploration and / or producers wells, they should be preferable directed towards the eastern flanks of the anticlinal structures and close to azimuth N 130°. © 2016, Asociacion Geologica Argentina. All rights reserved. Fil:Rossello, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00044822_v73_n4_p493_Rossello
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Geo-economics resources
Geomechanics
Natural fracturing reservoirs
Tunas Formation
fractured medium
geomechanics
hydrocarbon reservoir
lithostratigraphy
outcrop
Paleozoic
sedimentary rock
sedimentary sequence
Argentina
Buenos Aires [Argentina]
Claromeco Basin
Sierras Australes
Scombridae
spellingShingle Geo-economics resources
Geomechanics
Natural fracturing reservoirs
Tunas Formation
fractured medium
geomechanics
hydrocarbon reservoir
lithostratigraphy
outcrop
Paleozoic
sedimentary rock
sedimentary sequence
Argentina
Buenos Aires [Argentina]
Claromeco Basin
Sierras Australes
Scombridae
Rossello, E.A.
The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin
topic_facet Geo-economics resources
Geomechanics
Natural fracturing reservoirs
Tunas Formation
fractured medium
geomechanics
hydrocarbon reservoir
lithostratigraphy
outcrop
Paleozoic
sedimentary rock
sedimentary sequence
Argentina
Buenos Aires [Argentina]
Claromeco Basin
Sierras Australes
Scombridae
description The structural study of the petrophysical characteristics and the spatial arrangement of the fracturing in the exposed sedimentary rocks along the eastern edge of the Sierras Australes de Buenos Aires is the main objective of this work. These outcrops correspond to the Tunas Formation of the Pillahuincó Group (upper Paleozoic), being the closest and correlated with the sedimentary sequences located in the adjacent foreland Claromecó basin. According to available subsurface information the paleozoic sequences have potential hydrocarbon generation from the pelitic levels and coals swarms that could be source rocks placed on reservoirs levels with adequate porosity to become conventional and other with fractured levels of unconventional. Structural diagrams obtained from themesotectonic 1.134 data can recognize a responsible stressfield whose maximum principal stress was placed with NE-SW direction. The potential types of discontinuities able to improve the petrophysical properties of reservoir fluids in the adjacent Claromecó basin are the following fractures: 1) parallel to the stratification, 2) coincident with the cleavage axial plane, 3) dilatant filled by quartz and4) subvertical shear fractures. In the case of interventions of potential reservoirs made from exploration and / or producers wells, they should be preferable directed towards the eastern flanks of the anticlinal structures and close to azimuth N 130°. © 2016, Asociacion Geologica Argentina. All rights reserved.
format JOUR
author Rossello, E.A.
author_facet Rossello, E.A.
author_sort Rossello, E.A.
title The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin
title_short The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin
title_full The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin
title_fullStr The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin
title_full_unstemmed The tunas formation fracturing on the eastern edge of the Sierras Australes of Buenos Aires and its potential as fluid reservoir in the adjacent Claromecó basin
title_sort tunas formation fracturing on the eastern edge of the sierras australes of buenos aires and its potential as fluid reservoir in the adjacent claromecó basin
url http://hdl.handle.net/20.500.12110/paper_00044822_v73_n4_p493_Rossello
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