Geology of the Golfo San Jorge Basin, Argentina. Geología de la Cuenca del Golfo San Jorge, Argentina.
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TLDR
La cuenca del Golfo San Jorge (Golfo san Jorge) as mentioned in this paper is the most prolifica productora de petroleo de la Argentina, ubicandose sus reservas in segundo lugar tras de la Cuenca Neuquina.Abstract:
La cuenca del Golfo San Jorge esta ubicada en la Patagonia central, entre las latitudes 44° y 47°S, cubriendo una superficie de aproximadamente 170.000 km2. Es la mas prolifica productora de petroleo de la Argentina, ubicandose sus reservas en segundo lugar tras de la Cuenca Neuquina. De tipo intracratonica, predominantemente extensional, tiene una orientacion general E-W, desde la Cordillera de los Andes al Oceano Atlantico; su basamento economico esta compuesto por un complejo volcanico-sedimentario, asociado a un proceso de rift de edad Jurasico Medio a Superior. Posteriormente, comienza el ciclo sedimentario Neocomiano, bajo condiciones de rift tardio, cuyos depositos se encuentran rellenando sintectonicamente los grabenes y hemigrabenes con sedimentos lacustres y esporadicas transgresiones marinas del Pacifico. Luego de un basculamiento regional del eje principal de la cuenca hacia el Este, comienza el ciclo sedimentario Chubutiano. La Formacion Pozo D-129 (Barremiano-Aptiano), de origen principalmente lacustre, es la roca madre mas importante de la cuenca. Sobreyaciendo a esta unidad, un conjunto de sedimentos fluviales y lacustres someros se depositan en condiciones de subsidencia termal generalizada. Estos depositos contienen los reservorios con las mayores acumulaciones de hidrocarburos de la cuenca. Durante el Terciario se alternan depositos marinos y continentales. La fase compresional principal levanta la Faja Plegada de San Bernardo, de sentido N-S, por inversion tectonica de estructuras distensivas preexistentes. Los depositos glaciales del Cuaternario, representan un drastico cambio climatico. La actividad volcanica a lo largo de la historia de la cuenca se refleja en la alta participacion de material tobaceo en la columna sedimentaria, afectando la calidad de los reservorios. La generacion y posterior expulsion del petroleo comienza hace 80-50 Ma. La migracion se ve favorecida por la presencia de fallas, que originan una red de migracion a traves de la cual los hidrocarburos alcanzan los niveles reservorio, para alojarse finalmente en trampas estructurales, estratigraficas y combinadas.read more
Citations
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Proceedings ArticleDOI
Case study: Increasing hydrocarbon production from infill wells against the first successful microseismic monitoring of conventional reservoirs in Golfo San Jorge Basin, Argentina
Journal ArticleDOI
A global record of particulated metals on the southwestern Atlantic shelf (Argentine Sea)
Diana Mariel Villagran,Melisa Daiana Fernandez Severini,Daniela M. Truchet,Matias Nicolás Tártara,Jorge Eduardo Marcovecchio,Jorge Eduardo Marcovecchio +5 more
TL;DR: In this article, the authors evaluated the concentrations of some metals in suspended particulate matter (SPM), to provide baseline data that would enable us to understand the role of the SPM in the transport of metals in the Argentine Sea.
Book ChapterDOI
Hydrocarbon Remediation by Patagonian Microbial Consortia
TL;DR: The context of petroleum hydrocarbons in the Argentinean Patagonia coast is depicted, and recent advances in bioprospection of hydrocarbon-degrading microorganisms from polluted sediments are reviewed.
Journal ArticleDOI
Modeling and structural inversion from gravimetric data of the San Jorge Gulf Basin, Argentina
Marcos E. Bahía,L. Mariana Longo,Claudia L. Ravazzoli,Nicolás Scivetti,Nicolás Scivetti,Leonardo Benedini,Paulo Marcos,Paulo Marcos,Daniel Alfredo Gregori +8 more
TL;DR: In this article, the subsurface structure of the San Jorge Gulf basin, Argentina, and its relationship with the regional geodynamic context have been analyzed in this contribution from gravimetric data integrated with the available geological information.
References
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Journal ArticleDOI
Geometry, Lithofacies, and Spatial Distribution of Cretaceous Fluvial Sandstone Bodies, San Jorge Basin, Argentina: Outcrop Analog for the Hydrocarbon-Bearing Chubut Group
TL;DR: In this article, the Cretaceous Chubut Group, San Jorge Basin, Argentina, was studied in outcrop to provide analogs for adjacent subsurface hydrocarbon-bearing strata.
Journal ArticleDOI
The late Palaeozoic to early Mesozoic evolution of southern South America: a plate tectonic interpretation
TL;DR: The limits of three distinct upper Palaeozoic to lower Mesozoic tectono-stratigraphic zones of the ancestral Pacific margin of Gondwana in southern South America are documented in this paper.
Journal ArticleDOI
Age and Significance of Sequence Boundaries on Jurassic and Early Cretaceous Rifted Continental Margins
TL;DR: The age and significance of sequence boundaries on Jurassic to Early Cretaceous rifted continental margins in three ocean basins have been documented in this article, where large industry data bases were used for the interpretation of each area.
Book
Terrigenous Clastic Depositional Systems: Applications to Fossil Fuel and Groundwater Resources
TL;DR: In this paper, the authors bridge the gap between process-related outcrop studies of sedimentary rocks and three-dimensional subsurface world of the mineral fuel geologist and hydrogeologist.
Journal ArticleDOI
Evolution of the San Jorge Basin, Argentina
TL;DR: The San Jorge basin is the most important hydrocarbon-producing basin in Argentina as discussed by the authors, and the remaining untested potential is high because of the presence of good source rock, favorable structural complexity, and multiple reservoirs.
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