000 03171nmc a2200349 4500
005 20260520010357.0
008 260224s2018 xxu esp
041 _aEspañol
082 _a068.82 553.28 C62 2018 0015655
245 0 0 _aGeoquímica de la formación Agrio (cretácico inferior) en el Área de El Portón, Cuenca Neuquina
_bPrimeros resultados
260 _a
_b
_c2018
270 _a01/07/2022 ; 07/03/2019
300 _a12 p. ; 387-399
520 _aThe marine sediments of the Agrio Formation (Late Early Valanginian-Late Hauterivian) constitute an excellent example of a rhythmic succession of carbonate and silicoclastic deposits, whose evolution was related to the postrift stage of the basin formation, coincident with the development of the magmatic arc. This unit has been a target for sedimentological and paleontological studies, but information on its hydrocarbon potential is limited. In this context, the aim of the present study is to utilize programmed pyrolysis results from one outcrop locality in order to determine the internal stratigraphic variablity of the hydrocarbon potential within the unit.The study area, known as El Portón, is located about 7 km from the El Portón oil field in the east-central portion of the basin. A section of 576 m thick was measured on outcrop and represented in a profile at a 1:1000 scale. The geochemical studies have been conducted on 35 samples, systematically collected from the Pilmatué and Agua de la Mula members.Five lithofacies were recognized throughout the Pilmatué and Agua de la Mula members. Programmed pyrolysis were conducted in lithofacies 1 (L1, calcareous shale) and in lithofacies 2 (L2, mudstone/wackestone). Results on L1 samples show TOC values ranging from 0,49 to 3.60 wt%, while L2 samples show TOC values between 0.66 to 4.43 wt%. The sample distribution for L1 y L2 belongs to kerogen type II/II-III field, with samples placed in the mature oil window. These results represent a first approach at a detailed geochemical study of the Pilmatué and Agua de la Mula members of the Agrio Formation. It is expected in the future that new geochemistry techniques will be utilized in order to contribute to the integration of outcrop and subsurface data to to improve the definition of potential areas for unconventional hydrocarbon recovery
773 _g
942 _cCONGTP
100 1 _aOmarini, Julieta
_958498
100 1 _aTunik, Maísa
_9925
100 1 _aAguirre-Urreta, Beatriz
_955684
100 1 _aBrea, Fabián
_958499
100 1 _aLescano, Marina
_955686
100 1 _aMilicich, Romina
_956455
100 1 _aMoore, Shawn
_958500
100 1 _aBirgenheier, Lauren
_958501
100 1 _aMartínez, Mathieu
_958502
100 1 _aGiusiano, Adolfo
_955677
111 2 _aCongreso de Exploración y Desarrollo de Hidrocarburos (10mo. : 2018 nov. 5 - 9 : Mendoza)
_9573
111 2 _aSimposio de Recursos No Convencionales (2018 nov. 5 - 9 : Mendoza)
_9781
650 0 _aGeoquímica orgánica
_958503
999 _c192709
_d192709
856 _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SRNC/1414.pdf