Modified FILTERSIM Algorithm for Unconditional Simulation of Complex Spatial Geological Structures

• 作者: Mohammadreza Rasaei Peyman Mohammadmoradi
• 来源期刊: 地质材料(英文)
• 学科: 数学
• 关键词: FILTERAIM MPS PATTERN Persisting Training Image ENTROPY PLOT
• 年，卷（期）: dzclyw_2012,（3）
• 页码范围: 49-56
• 页数: 8页
• 分类号: O1

摘要

Facies and fracture network modeling need robust, realistic and multi scale methods that can extract and reproduce complex relations in geological structures. Multi Point Statistic (MPS) algorithms can be used to model these high order relations from a visually and statistically explicit model, a training image. FILTERSIM as a pattern based MPS method attracts much attention. It decreases the complexity of computation, accelerates search process and increases CPU per-formance compare to other MPS methods by transferring training image patterns to a lower dimensional space. The results quality is not however as satisfactory. This work presents an improved version of FILTERSIM in which pattern extraction, persisting and pasting steps are modified to enhance visual quality and structures continuity in the realiza-tions. Examples shown in this paper give visual appealing results for the reconstruction of stationary complex struc-tures.