Estimation of Uncertainties in Fault Lateral Positioning on 3D PSDM Seismic Image - Example from the NW Australian Shelf

We present a two-step sequence to estimate uncertainties in lateral positioning of fault planes on 3D PSDM seismic images. The first step provides an approximate evaluation of what causes the uncertainties, how uncertainties are distributed in 3D space and what to expect within our target zones. In the second step we focus on a single fault of practical interest and assess how far the velocity changes can move the image of the fault and still satisfy the available seismic data. We use a real multi-azimuth 3D seismic dataset from the North-West Australian shelf to illustrate this sequence.