Abstract:

Prediction of depth between wells is a key issue in micros-structure study. The seismic data can not predict the depth of formation with a thickness of 15 meters or less, but the fractal theory can be successfully applies. The process to fulfill predicting parameter between wells include: trend surface analysis of the depth; calculation the fractional dimension H ; calculation of the residual error of every point and prediction of the value by trend value combining residual error. The result of predicting the thickness of DJL reservoir has verified the validity of the method. Drilling data indicates that’s microstructure map plotted with the method can effectively predict the distribution of residual oil.

Key words: fractal, distribution of residual oil, regional structural map, heterogeneous reservoir