TY  - DATA
AU  - Capuano,José Luis
AU  - Tavella,Juan
AU  - Carrero,Javier
AU  - Conci,Ignacio
AU  - Balaguera,Abraham
ED  - Congreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza)
TI  - CARACTERIZACIÓN INTERDISCIPLINARIA DE RESERVORIOS VOLCÁNICOS FRACTURADOS RECUYANOS EN EL BLOQUE LA YESERA, CUENCA NEUQUINA
U1  - 068.82 553.28 C62 15730 
N2  - The fractured igneous reservoirs characterization was carried out in the Yesera field included in the block CNQ -27 (RNN IV) in the province of Rio Negro, Argentina. It was based on the execution of four stages: seismic processing, migration with azimuthal preservation, formation evaluations and reservoir characterization and classification. The study covered 85 Km2 of seismic information using the calibration and control of four wells. The aim of the work corresponds to the Precuyo units composed in the study area by volcanic rocks which were subjected to hydrothermal fracturing causing gaps intervals with reservoir conditions. The subsequent original fracture cementation reduced the porosity to intergranular remnants, which would finally obtain the interconnection exhibited today due to the later tectonic fracturing. According to this information, to understand and map out the reservoirs, the identification of the textural changes (gaps), cementation minerals and fracture development were key. For that reason, a multimineral petrophysical model of triple porosity (not connected of fracture and matrix) was developed. Fracturing was analyzed based on the image interpretation and an electrofacies classification was carried out from the texture of image logs and petrophysical features. The study was completed with a stage of criteria analysis and the relations among the reservoirs discriminators and the elastic properties to which the seismic information is sensitive. The predictive system was based on seismic products of two types: a) Elastic properties of the rocks originated by the (Prestack Inversion) that, through the aforementioned criteria application, permitted the identification of favorable zones in terms of the reservoir quality and that at the same time contributed to the geostatistical classification of facies. b) Intensity and orientation attributes of anisotropic seismic signal (HTI (AVAZ) generated from the multidirectional gathers with azimuthal preservation, giving place to the mapping of zones with intense fracturing probability, associated to increase of flow capacity. The integrated analysis of all the information led to the geobodies delineation (units of flow) with high probabilities of presence of hydrocarbons, as an essential tool for the wells location
UR  - https://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Geofísica/geofisica08.pdf
ER  -