000 02579nmc a2200241 4500
005 20260520010439.0
008 260224s xxu
082 _a068.82 553.28 C62 15730
210 _aExploración y Sistemas Petroleros
245 0 0 _aEL SISTEMA PETROLERO TOBÍFERA-TOBÍFERA EN LA PROVINCIA DE TIERRA DEL FUEGO, CUENCA AUSTRAL, ARGENTINA, Y SU POTENCIAL EXPLORATORIO EN EL HEMIGRABEN ANGOSTURA
270 _a21/04/2023 ; 18/04/2023
300 _a24 p. ; 383-405
520 _aIn Tierra del Fuego Province most of the hydrocarbons, usually gas with associated liquid, has been produced from the Springhill Fm., the typical and conventional clastic reservoir of the Austral Basin. The recent discovery of oil in reservoir levels of the Jurassic volcaniclastic Serie Tobífera in the Angostura halfgraben (San Martín Field) has encouraged the exploratory interest of this play in the area. Specifically, for the Argentine sector of Tierra del Fuego, this study addresses the first documented occurrence of oil with a geochemical pattern related to a lacustrine source rock in the Serie Tobífera interval of the AS.x-1001 (Angostura Sur) well, located southeast of the San Martin field. From chromatographic, isotopic and biomarker data, its origin is attributed to organic rich beds contained in the Jurassic halfgrabens of the Serie Tobífera. The Angostura Sur recovered oil can be clearly differentiated from other produced oils from the Serie Tobífera and the Springhill Fm. in the neighbor areas, which are largely dominated by Lower Cretaceous marine source rocks. These distinct genetic identities allow the recognition of two Petroleum Systems in the study area and delineate two end-member oil types. The latter are useful for interpreting the origin of other fluids characterized by intermediate patterns and mixed contributions. The generation capacity of the pre-Cretaceous lacustrine source rock of the Angostura halfgraben is discussed in terms of its analogy with Jurassic non-marine source rocks identified in the Pampa Palauco/Cajón de los Caballos area of the Neuquén Basin.
773 _g
942 _cCONGTP
100 1 _aDe la Cal, Hernán
_955708
100 1 _aVillar, Héctor J.
_94764
100 1 _aFeinstein, Enrique
_955711
100 1 _aPáez, Gerardo
_955710
111 2 _aCongreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza)
_961064
999 _c195622
_d195622
856 _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Expl-y-sist-Petroleros/explora20.pdf