Facies modeling in unconventional reservoirs using seismic-derived facies probabilities

We present in this paper a methodology to use prestack seismic inversion results to constrain facies modeling in unconventional reservoirs. The fact that the exploitation of unconventional reservoirs typically relies on the use of large numbers of long, closely spaced, data poor horizontal wells creates challenges in petrophysical analyses, rock physics diagnostics, seismic scale calibrations and stochastic facies modeling that do not exist in conventional reservoirs. We address these challenges and propose solutions that result in geological facies models that closely follow horizontal and vertical well facies data, vertical proportion curves and selected seismic constraints that are treated as hard data. We illustrate this methodology using data from a carbonate rich unconventional reservoir in Texas. Presentation Date: Tuesday, October 18, 2016 Start Time: 2:15:00 PM Location: 156 Presentation Type: ORAL