基于体素模型的砂岩侵入体三维重建
李康1 ,李少华1 ,易雪斐2 ,徐亚楠3 ,王浩宇1 ,喻思羽1
1 长江大学油气资源与勘探技术教育部重点实验室,湖北武汉 430100
Sandstone injectite 3D reconstruction based on Voxelization
Li Kang1 , Li Shaohua1 , Yi Xuefei2 , Xu Ya'nan3 , Wang Haoyu1 , Yu Siyu1
1 Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Wuhan 430100, Hubei
摘要 砂岩侵入体是由沉积后的砂岩再活动并侵入到周围地层中形成的一种特殊砂体。为了研究其演化过程,设计了砂岩侵入体形成过程的模拟实验。针对实验结果,提出了基于体素模型法和Petrel软件的三维重建方法:在实验切片的基础上,对所得到的实验照片进行预处理,将其转化为Petrel软件能够识别的Gslib格式的数据体,再使用克里金插值算法进行模拟。结果表明,克里金算法可以很好地再现砂岩侵入体的外部形态,多组切片的特征参数统计可以定量地刻画出侵入体的形态,以期为实际岩性油气藏中的规模预测提供理论指导。
关键词 ：
砂岩侵入体 ,
体素模型法 ,
三维重建 ,
克里金插值
Abstract ：Sand injectite is one kind of special sand bodies,which injects into surrounding strata after the depositional period. In order to analyze its evolution,a simulation experiment is designed. A 3D reconstruction method based on Voxelization is proposed,and Petrel software is used to simulate the results. Based on experiment slices, the slice photos are pre-processed,and then the data is changed into Gslib fromat. Kriging interpolation algorithm is carried out for the data. The simulation results show that Kriging interpolation algorithm can reconstruct the outlines of sand injectites well. Moreover,characteristic parameters of sand injectites are calculated to depict the shape quantitatively,so that it can provide theoretical models for prediction of lithological reservoir scale.
Key words ：
sand injectite
Voxelization
3D reconstruction
Kriging interpolation algorithm
收稿日期: 2014-07-05
出版日期: 2014-12-01
基金资助: 国家“十二五”重大专项(编号:2011ZX05023-002)、国家自然科学基金项目(编号:42172136)联合资助
通讯作者:
李少华,男,1972年生,博士,教授,主要从事地质统计学及储层建模方面的科研与教学。E-mail: jpishli@163.com。
作者简介 : 李康,男,1990年生,长江大学地球科学学院硕士研究生,研究方向为储层地质建模。
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易雪斐,张昌民,李少华,杜家元,李康,王浩宇,李向阳,周凤娟,袁才. 砂岩侵入体系模拟及形成机理分析
