oa Stochastic Inversion

In addition to traditional modeIs, geostatistics offers a variety of methods to build a stochastic model of the reservoir. Geostatistics offers interpolation techniques that account for the spatial relationship of variables. Some advantages of stochastic modelling are: • The impact of uncertainty on the models can be assessed. • Spatial heterogeneity as described by distributions, variograms and cross-variograms is modelled statistically correct. • Complex information can be incorporated. The basics of geostatistics are described by Journel et al (1978). Geostatistical algorithms are outlined by Deutsch et al (1992).