000			02525nmc a2200253 4500
005			20260520010439.0
008			260224s xxu
082			_a068.82 553.28 C62 15730
210			_aExploración y Sistemas Petroleros
245	0	0	_aREVISIÓN DE LA ESTRATIGRAFÍA Y POTENCIAL PETROLÍFERO DE LA ANTEFOSA PALEÓGENA DE LA CUENCA DE ANTEPAÍS MAGALLANES, CHILE
270			_a21/04/2023 ; 18/04/2023
300			_a30 p. ; 281-309
520			_aDuring the last few years, interest for oil and gas exploration in the Magallanes Foreland Basin of southern Chile has shifted to Paleogene siliciclastic deposits strata of the foredeep realm. However, the task is made difficult by a remarkable tectono-sedimentary complexity. Based on previous work, seismic and well data, and recent biostratigraphic and detrital-zircon U-Pb dating, the purpose of the present work is to revise the stratigraphic framework and petroleum potential of the foredeep succession. This succession is exposed along the Andes Cordillera and at the subsurface lies at a depth of ~2300-6000 m. In the study area, potential tight-gas reservoirs vary from ~30-100 m in thickness and comprises sandstones and minor conglomerates associated with with gravity-flows. Locally, some overpressured reservoirs has produced gas and condensate from a depth of 2500 m farther east. Interbedded mudrocks may act as effective barriers to fluid flows in structurally simple areas. Thermal maturity of potential source rocks below ~2500 m depth is 0.6 %Ro or higher. Total organic carbon is commonly low (<0.8 wt. %), but range between 0.2-1.8 wt. %, and is mainly associated with gas-prone Type-III kerogens. Traps are said to be structural, stratigraphic, or combined and the quality of the reservoirs is generally poor because moderate to intense diagenetic processes. Nevertheless, tight intervals located in the platform areas of the basin are just recently attracting attention for development with multi-well pad and hydraulic fracturing techniques.
773			_g
942			_cCONGTP
100	1		_aPinto, Jesús _961086
100	1		_aGonzález, Danilo _961087
100	1		_aAgurto, Cristóbal _961088
100	1		_aPérez, Álvaro _961089
100	1		_aOjeda, Romina _961090
111	2		_aCongreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza) _961064
999			_c195618 _d195618
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Expl-y-sist-Petroleros/explora16.pdf