TY - DATA AU - Arustizia,Ana AU - Krenek,Daniel AU - Pérez,Carlos ED - Simposio de Geofísica (2018 nov. 5 - 9 : Mendoza) TI - Interpretación sísmica de anomalías de gas: Clasificación de facies sísmicas y análisis avo para su caracterización U1 - 068.82 553.28 C62 2018 0015644 KW - Gas somero KW - Facies sísmicas N2 - From cross sectional seismic interpretation, some Lobe-shaped anomalies were interpreted. Those anomalies are related with gas-bearing, tertiary reservoirs, which is of great interest since they lie in shallow depths and those reservoirs have free gas only.The anomalies were characterized from the pre-and post-stack seismic record; different seismic attributes maps were made (spectral decomposition, sweetness, Hilbert Transform, etc.), in order to define their geometry. Then, a seismic facies classification PCA was made to obtain rock-type characterization supported by well-log data. Since the AVO analysis is useful for fluid characterization, a qualitative AVO analysis was performed in this case of study.From this analysis, a number of workovers were identified. Three wells were intervened in order to perforate the reservoirs associated with seismic anomalies in Salamanca Formation (Maastrichtiano-Daniano). The flow-in test proved gas in all of them, with low CO2 content and static pressure UR - https://biblioteca.iapg.org.ar/ArchivosAdjuntos/Conexplor2018/SGeof/1125.pdf ER -