Abstract:The modeling method of sequential indicator simulation with a trend is a stochastic simulation method based on geological statistics,its basic works are 3D fine seismic data interpretation and standardized processing of logging data.The key steps of implementing the method include forming lithological curves for a single well,building trend model,analyzing distribution rule of reservoir parameters in space and spatial correlation and assessing reliability of reservoir parameters model as well as optimizing it besides the following methods:detection of wavelet by logging-constrained wave impedance inversion,fine labeling of the formation,building geological framework model and selecting the constrained parameters of wave impedance inversion etc.Ill comparison with the logging-constrained wave impedance inversion,the method is characterized by not only greatly improving the vertical resolution and fine description of reservoir characters,but also the qualitative assessment of the non-homogeneity and uncertainty of spatial distribution of reservoir parameters.The practical use of the method in QB block of Dongpu sag showed that the method clarified favorable distribution region of oil/gas-bearing sandstone and spatially changing low of its thickness.
雷利安, 徐美茹, 曹学良, 芦淑萍. 带趋势序贯指示模拟方法在东濮凹陷薄砂岩储层预测中的应用[J]. 石油地球物理勘探, 2005, 40(1): 92-96.
Lei Li-an, Xu Mei-ru, Cao Xue-liang, Lu Shu-ping. Application of sequential indicator simulation with a trend to predict thin-bedded sandstone reservoir in Dongpu sag. OGP, 2005, 40(1): 92-96.