Sensitivity analysis of seismic attributes and oil reservoir predictions based on jointing wells and seismic data – A case study in the Taoerhe Sag, China

It is important to identify the location of gravelly sandstone in Taoerhe Sag, an oil target area Chezhen Depression. To date, most attention has focused on sedimentary characteristics; hence, information regarding a clear sensitivity analysis seismic attributes incomplete. address this, we used well and attribute interpretation find sensitive sand bodies. Based core data, geologicald model mudstone was established, electrical characteristics three kinds lithology were identified. We correlation select optimal logging parameters sandstone. multi-attribute fusion technology stratigraphic slices characterize spatial distribution genetic algorithm inversion volume evaluate prediction results. The results indicate that main lithologies lower submember Shahejie Formation 3 (P 2 S X ) Sag can be distinguished by natural gamma (GR), acoustic time difference (AC) saturated hydrocarbon content (SH) curves. P are high root mean square amplitude (RMS) values, instantaneous bandwidth (BW) low 3D curvature (Curv) medium-high phase (Phase) values frequency (Freq) values. In this study, found two nearshore underwater fans . Gravelly located along slope zone lake bottom, with total 57.9 km method summarized paper applied other similar deep-water basins.