000			03341nmc a2200265 4500
005			20260520010438.0
008			260224s xxu
082			_a068.82 553.28 C62 15730
210			_aExploración y Sistemas Petroleros
245	0	0	_aINTEGRACIÓN DE INDICADORES GEOQUÍMICOS Y MODELO PALEOAMBIENTAL EN LA EVALUACIÓN DEL POTENCIAL COMO RESERVORIO SHALE DE LA FORMACIÓN LOS MOLLES EN EL ÁMBITO SUR DE LA CUENCA NEUQUINA
270			_a21/04/2023 ; 14/04/2023
300			_a14 p. ; 131-143
520			_aLos Molles Formation (Pliensbaquian-Callovian) has traditionally been considered as one of the main source rocks in the Neuquen basin and also a conventional reservoir when encountered as deep water sandy turbidite facies. The aim of this work is to evaluate Los Molles as an unconventional reservoir in the south eastern area of the Neuquen basin. 400 km2 of 3D seismic were extensively interpreted, allowing to build a regional seismostratigrahic model and paleoenvironmental maps for each sedimentary cycle within the Lower Jurassic. These results were integrated with geological, geochemical and sedimentological studies from older exploration wells. This approach allowed the identification of two source intervals within the 400 m thick of Los Molles Formation. The bottom section has 40 m thick, mainly homogeneous bituminous shales with up to 3% TOC and type II kerogen, that have been assigned to the initial flooding of the basin (Pliensbachian to Early Toarcian) over an irregular paleosurface with a strong tectonic imprint. The upper section, assigned to the Upper Toarcian, is 360 m thick and consists of bituminous mudstones that alternate with silstones and fine - grained sands with 2.5 TOC average and type III kerogen. This interval has been interpreted as a distal segment within the Cuyo Group clinoforms, corresponding to slope channels and levees. The reverse behavior of the redox sensitive elements as Molybdenum, Vanadium, Chromium as wells as from those associated with clastic input (Aluminum, Potassium) in both sections are indicative of shallowing trends that was confirmed by the presence of distinctive macerals. Moreover, thermal maturity data such as vitrinite reflectance, Tmax and hydrogen index support that in this area both sections reached the appropriate conditions to bear potential as an unconventional reservoir. As a result of these multidisciplinary approach, a strong correlation between the paleoenvironmental position of the stratigraphic sections and its geochemical characteristics was recognized. These distinction between the two organic levels within Los Molles Formation has proven to bear strong impact in predicting the type of fluid and the identification and assessment of its the potential as an unconventional target.
773			_g
942			_cCONGTP
100	1		_aUtgé, Silvana _958751
100	1		_aLoss, M. Laura _961078
100	1		_aDomínguez, Fabián _960602
100	1		_aBouhier, Julia _961079
100	1		_aFasola, Martín _940161
100	1		_aGuerello, Rodolfo _955641
111	2		_aCongreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza) _961064
999			_c195610 _d195610
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Expl-y-sist-Petroleros/explora08.pdf