Three-dimensional geological modeling based on hydro sections

Since section is a common and valuable data model, a novel modeling method based on sections was proposed, namely 'section information extraction', and modeling steps were presented. The matter to which attention should be paid and necessary preprocessing before modeling based on sections were analyzed. Methods of section generalization, section mapping from the space of two-dimension to that of three-dimension, building background grid of section information and correcting error section information were introduced. A novel method of 'top surface-pinch out line-lens' was applied to reconstructing lens model, which converted the complex multiple-valued modeling to single-valued modeling. Then modeling algorithms of single-valued layer and lens were described respectively. At last, an application example was shown, which proved the efficiency of the modeling method based on hydro geological sections.