Abstract:

Naobaoshan braided sandbodies are situated in Shangyi County,Hebei Province The permeability of the sandbodies are analysed by combining actual measurement in a large scale with sedimentology Samples of some lines are chosen Conditional simulation method and fractal geometry method are used separately in the modelling of the permeability of the sandbodies Conditional simulation model is built based on the variogram of the permeability;fractal model is built according to Hurst index that is calculated based on permeability and interpolation theory The results suggest that conditional model could recur the heterogeneity of the reservoir,the fractal model could reveal both the macroscopic physical property and microscopic heterogeneity These two methods are efficient in heterogeneity researches,and could be in compensation for each other