Abstract

Property estimation of thin sand-shale reservoirs using seismic response could be challenging due to limited seismic resolvability. A forward-modeled investigation on seismic signatures of multiple realizations of pseudo 1-D thin sand-shale sequences, constructed from a discrete, first order Markov chain model, reveals possible distinctions of thin sand-shale reservoirs with different net-to-gross and saturations in the wavelet-transform-based attribute space. We also show a numerical example of how to apply this technique in a real situation. First, we assume that the transition matrix or thickness distributions at the well location are known.