000			03448nmc a2200325 4500
005			20260520010357.0
008			260224s2018 xxu esp
041			_aEspañol
082			_a068.82 553.28 C62 2018 0015655
245	0	0	_aMicrotomografía de rayos X como técnica complementaria en el análisis de recursos no convencionales tipo shale _bLa formación Agrio (cretácico inferior), Cuenca Neuquina, Argentina
260			_a _b _c2018
270			_a01/07/2022 ; 07/03/2019
300			_a13 p. ; 401-414
520			_aX-ray micro-computed tomography (microCT) is a non-destructive powerful tool for the analysis of microstructural features of geological materials. In the case of shales, a 3D visualization offers important information on the spatial distribution of organic components, inorganic phase minerals and if it is possible to get a description about pore space and microfractures. Given the internal complexity and heterogeneity of shales, microCT studies should be complemented by additional methods including bulk rock properties and microscopical observations to better understand the internal microstructure. The Meso-Cenozoic Neuquén Basin is renowned for its various petroleum systems and in recent years for its excellent unconventional oil and gas reservoirs. However, detailed studies on the microstructure of shales are poorlyreported in the literature. In this work, we analyzed an oil-prone shale level form the lowermost part of the Agua de la Mula Member (Agrio Formation) combining outcrop information, optical and electron microscopy, X-ray diffraction (XRD), X-ray microtomography (microCT), in addition to total organic carbon (TOC)-Rock Eval pyrolysis. This organic-rich shale (16.5% TOC) was accumulated in a distal outer ramp setting with calcareous microfossils and algal-derived organic matter that suggest high carbonate productivity in the water column related to plankton blooms and the co-occurrence of benthic microbial mats.These components are organized into very thin (< 10 mm) beds bounded by subtle erosional microsurfaces. The microCT results discriminate between units rich or depleted in organic matter proving its successful application for 3D microstructure reconstructions. This analysis showed that burial diagenesis did not create enough pore space to be evaluated through microCT and that, besides density and atomic number (mineralogy), the particle-size distribution, particle arrangement and local compaction degree might affect the reconstruction of a 3D image. The case study is an example of the new research approaches needed to understand the internal microstructure in unconventional carbonate reservoir/source rocks.
773			_g
942			_cCONGTP
100	1		_aComerio, Marcos _955700
100	1		_aMedina, Federico _958504
100	1		_aAnaya, Ricardo _958505
100	1		_aFernández, Diana Elizabeth _958506
100	1		_aRendtorff, Nicolás _958507
100	1		_aCipollone, Mariano _956372
100	1		_aPazos, Pablo J. _92936
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	_aShale oil _954540
650		0	_aFormación Agrio _99110
999			_c192710 _d192710
856			_uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SRNC/1676.pdf