02421nmc a2200217 4500 20260520010446.0 260224s xxu BAAB 068.82 553.28 C62 15730 Corva, María Dolores Späth, Federico Gustavo Enrique Kautyian Zisiyian, Ariel Pablo Congreso de Exploración y Desarrollo de Hidrocarburos (11er : 2022 nov. 8 - 11 : Mendoza) CARACTERIZACIÓN SÍSMICA MEDIANTE INVERSIÓN ESTOCÁSTICA DE LA FORMACIÓN VACA MUERTA, CUENCA NEUQUINA 17/08/2023 ; 17/08/2023 16 p. ; 211-225 The Vaca Muerta Formation is the main source rock in Neuquén Basin, and the primary unconventional reservoir in Argentina. Thin facies of bituminous marls and mudstones with carbonatic intercalations and Total Organic Content between 1% and 10% constitute the deposits of Vaca Muerta Fm., interpreted as the product of distal and central basin environments. Several seismic techniques such as AVO and simultaneous inversion are used for reservoir characterization. However, these methods have limitations in areas where vertical variability of reservoir properties are below the seismic resolution. To overcome this limitation and describe clinoform sedimentary sequences, a 3D stochastic seismic inversion was performed in a region of approximately 100 km2. A volume of acoustic impedance was obtained after a model-based deterministic inversion. This outcome was used to constrain the vertical and lateral trends of acoustic impedance as a prior model for stochastic seismic inversion. The inverted geostatistical models were further used to improve the prediction of a spatial and vertical distribution of reservoir properties by integrating well-log data and seismic volumes. The P impedance volumes obtained from deterministic and stochastic inversion are used to obtain porosity and TOC volumes for petrophysical characterization of the reservoir. An increase in the detail of the models was obtained from the stochastic inversion. In addition, stochastic inversion provided a better understanding of the uncertainty of the available data and therefore a basis on which to analyze the obtained results https://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2022/Geofísica/geofisica11.pdf CONGTP Dominguez, Silvia 196010 196010 BVIAPG BVIAPG 2026-03-06 0 068.82 553.28 C62 15730 200068428 2026-03-06 00:41:23 ARCHIVO