The scientists used seismic data and advanced techniques to evaluate uncertainty in a deepwater reservoir. By combining geological and seismic information, they created multiple scenarios to model the reservoir's heterogeneity. This approach helped them classify different rock types accurately and predict the distribution of oil and gas within the reservoir. The researchers were able to generate various depositional scenarios and identify the most realistic ones by comparing them to actual production data. This method can be used to understand how fluids flow through the reservoir and account for uncertainties in its properties.