Auto-construction algorithm of four-dimensional(4D) geological stratum on complex geological structure
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摘要: 地质建模在石油勘探开发、矿产资源开采领域有广泛的应用,在分析当前地质层面生成算法的基础上,提出了基于变形算法的四维地质建模方法.首先通过构建断层空间关系二叉树和空间变形场,将地质层面的离散点恢复变形到原始形貌状态,再将原始形貌地质层面网格断裂变形到时间t,生成四维地质层面,最后给出算法的实例验证算法的有效性.该算法不需交互编辑,自动生成四维地质层面,已应用于油田正演、地下水地质建模等领域.Abstract: Geological modeling is widely used in the fields of oil exploration and mineral resource exploitation. With the analysis of current constructing method of stratum, the 4D geological modeling method based on morphing algorithm was addressed. The faults spatial relation binary tree and spatial morphing fields were built, then the scatter points of stratum were restoring morphed to the original geological state and the 4D stratum of time t was constructed by rupture morphing the stratum-s original geological net. Examples were given to demonstrate the validity of the algorithm. The algorithm can construct the 4D stratum automatically without interactive edit and is used in several fields such as oil forward modeling and underground water modeling.
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Key words:
- four-dimensional /
- geological stratum /
- auto-construction /
- morphing algorithm
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