![]() ![]() Local heterogeneities might be predicted from the data using seismic attribute analysis, which can be imposed during geostatistical seismic inversion as local anisotropy models. In complex geological environments a global variogram model might be unable to detect local heterogeneities and rapid variations of lithology, and result in nonrealistic geological models. These limitations are often due to the use of a global variogram model to express the expected spatial continuity pattern of the property of interest. When the model perturbation technique uses two-point geostatistics, these methods struggle to reproduce complex and nonstationary geological environments such as faults, folds and highly variable depositional systems. ![]() Iterative geostatistical seismic inversion methods are widely used to predict petro-elastic rock properties from seismic reflection data. ![]()
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