Application of different types of forward modeling results in seismic reservoir prediction

There are a large number of transitional rocks (silty mudstone and muddy silty sand) in the Fuyu reservoir, which affect the seismic characteristics and reduce the reservoir prediction accuracy.The lithology P-wave impedance log can be created by the well log interpretation result.The lithology P-wave impedance log, real P-wave impedance log and space variant wavelet are used to calculate two forward modelings, and the difference between the two results can shield the effect of the transitional rocks, obtain a reliable seismic data.The seismic attributes are extracted by using the partition window, and the accuracy of reservoir prediction is improved from 53.9% to 75.1%.The coincidence rate of well is greatly improved, and the method can get good reservoir prediction results.