000 02274nmc a2200217 4500
005 20260520010452.0
008 260224s xxu
082 _a068.82 553.28 C62 15730
210 _aSimposio de Magmatismo y Sistemas Petroleros "Dr. Eduardo Llambías"
245 0 0 _aNUEVO MODELO GEOLÓGICO PARA LOS DEPOCENTROS TRIÁSICOS EN EL BLOQUE BARRANCAS, CUENCA CUYANA, MENDOZA, ARGENTINA
270 _a15/08/2024 ; 15/08/2024
300 _a18 p. ; 209-226
520 _aThe lower Triassic epiclastic and volcanic deposits (Las Cabras and Potrerillos formations), of the northern fields of the eastern productive axis of the Cuyo Basin, are large hydrocarbon reservoirs with a cumulative oil production of more than 12,7 Mm3. Previous reports describe the rifting Triassic deposits from the classical structural and sedimentary approach, without integrating the volcanic environment in a mixed geological model. This paper discusses how the collection of cutting samples, well cores, logs, tests and well production, together with the 3D seismic data, allowed the definition of an integrated model. A volcanic caldera environment in extensional regime is proposed, with low runout ignimbrites in moderately explosive cycles, interacting with a preexisting sedimentary environment. In the Triassic, the volcanic rocks provided the detritus that would be re-transported by the pre-existing and reactivated sedimentary environments, with an evident cyclicity. The study has been focused on the Barrancas area, at the northeastern section of the basin, 16 km south of the city of Mendoza. Two main effusive volcanic centers were determined as two collapse caldera. This model fits the distributions of well production in the area and changes historical correlation of the well logs. This allowed a predictive model to be generated, minimizing the uncertainty of the exploration wells
773 _g
942 _cCONGTP
100 1 _aGonzález, Carolina
_961065
100 1 _aMykietiuk, Karina
_955777
111 2 _aCongreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza)
_961064
999 _c196624
_d196624
856 _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Simp.Magmatismo/magmatismo12.pdf