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Prediction of Shear Velocity Using Rock Physics Modelling for Seismic Reservoir Characterization
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Third EAGE Workshop on Rock Physics, Nov 2015, Volume 2015, p.1 - 5
Abstract
The rock physics inclusion model is an effective method for the prediction of shear logs. Shear data is used in the AVO and pre-stack inversion for fluid/lithology separation and fracture attribute modeling. Accuracy of the shear data will improve the identification of the lithology, reservoir and fluids, and in calculation of geomechanical properties. There is a good correlation between the measured and modeled logs, so adjacent wells which are in the same area can be used to build the rock physics model, and then to calculate the shear velocity. The Poisson’s ratio from the inversion results matches well with the modeled logs but with good distribution of shear logs in a field, the Poisson’s ratio calculation can be more accurate.