Spatial Resolution of Stratal Slice and Its Implications to Seismic Sedimentology

Abstract

Application of seismic sedimentology in a case study demonstrated our ability to use a stratal slice to visually recognize a very thin depositional element far below seismic resolvable limit. This can be explained by spatial resolution, which is defined as a special resolution status in which an object is horizontally resolved but vertically detected by seismic data. Generation and interpretation of stratal slices require a new 3D strategy that goes beyond the limits of traditional principles such as single interface zero-phase doctrine and layered-medium assumption. A stratal slice normally represents seismic energy, mostly from a nearby /8 formation with sediments in the neighborhood of /8 to /4 having significant influence, and with side lobes ( /4 to ) having minor influence. Relative amplitude (non-peak/trough amplitude) is valuable in seismic sedimentology by revealing vital information about depositional history.