摘要
三维地质建模过程中,插值算法对模型准确性具有显著影响。为评价不同插值算法对三维建模准确性的影响,本文选取反距离权重插值法和自然邻域插值法开展对比研究。通过理论分析和案例研究,从统计学原理、插值误差和可视化效果等三方面进行了对比分析。结果表明:反距离权重插值法在建模中精度较高,适应面更广。与自然邻域插值法相比,反距离权重插值法更加适用于地层缺失严重的层位,能够更好地保留地层缺失的特征;同时,反距离权重插值法能够更好地处理断层构造,对于地层的错断起伏情况表现效果更好;反距离权重插值法在沉积地层中误差更小,与实际情况更接近。
In the process of 3D geological modeling,interpolation algorithm has a significant influence on the accuracy of the model.In order to evaluate the influence of different interpolation algorithms on 3D modeling,the inverse distance weight interpolation and the natural neighborhood interpolation methods were selected to make a comparative study.Through theoretical analyses and case studies,these two methods were analyzed and compared in aspects of statistics,interpolation errors,and visualization.The results show that the inverse distance weight interpolation method has higher accuracy and wider adaptation area in modeling.Compared to the natural neighborhood interpolation method,the inverse distance weight interpolation method is,at first,more applicable to the area where some strata lack seriously,and can better retain characteristics of the lacked strata.Next,the method is able to handle fault structures and perform better for the fault fluctuation of strata.Finally,its result has a smaller error in sedimentary strata,and is closer to the actual situation.
作者
冯波
陈明涛
岳冬冬
李胜涛
贾小丰
宋丹
Feng Bo;Chen Mingtao;Yue Dongdong;Li Shengtao;Jia Xiaofeng;Song Dan(Key Laboratory of Groundwater Resources and Environment(Jilin University),Ministry of Education,Changchun130021,China;Center for Hydrogeology and Environmental Geology,China Geological Survey,Baoding071051,Hebei,China)
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2019年第4期1200-1208,共9页
Journal of Jilin University：Earth Science Edition
基金
国家重点研发计划项目(2018YFB1501802)
吉林省与吉林大学共建项目(SXGJSF2017-5)
中国地质调查局项目(DD20179621)
吉林省教育厅项目(JJKH20170807KJ)~~
关键词
三维地质建模
GMS
反距离权重插值法
自然邻域插值法
3D geological modeling
groundwater modeling system
the inverse distance weight interpolation method
natural neighborhood interpolation method
作者简介
冯波(1982-),男,副教授,主要从事干热岩储层改造及资源评价方面的研究,E-mail:fengbo82@126.com;通信作者:李胜涛(1982-),男,高级工程师,博士研究生,主要从事水工环地质调查与热储工程研究,E-mail:lishengtao@chegs.cn
