基于多分辨率图像融合的多尺度多组分数字岩心构建

doi:10.13278/j.cnki.jjuese.201706307

吉林大学学报(地球科学版) ›› 2017, Vol. 47 ›› Issue (6): 1904-1912.doi: 10.13278/j.cnki.jjuese.201706307

• 地球探测与信息技术 • 上一篇

基于多分辨率图像融合的多尺度多组分数字岩心构建

崔利凯¹, 孙建孟¹, 闫伟超¹, 高银山², 王洪君², 宋丽媛³

1. 中国石油大学(华东)地球科学与技术学院, 山东青岛 266580;
2. 中国石油长庆油田分公司第五采油厂, 西安 710200;
3. 中国石油长庆油田分公司第八采油厂, 西安 710021

收稿日期:2017-03-07 出版日期:2017-11-26 发布日期:2017-11-26
作者简介:崔利凯(1988),男,博士研究生,主要从事测井解释、数字岩心建模与数字岩石物理实验研究,E-mail:cuilikai1988@163.com
基金资助:
国家自然科学基金项目（41374124，41574122）；国家科技重大专项（2016ZX05006002-004）

Construction of Multi-Scale and -Component Digital Cores Based on Fusion of Different Resolution Core Images

Cui Likai¹, Sun Jianmeng¹, Yan Weichao¹, Gao Yinshan², Wang Hongjun², Song Liyuan³

1. School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong, China;
2. No.5 Oil Production Plant, Changqing Oilfield Company, PetroChina, Xi'an 710200, China;
3. No.8 Oil Production Plant, Changqing Oilfield Company, PetroChina, Xi'an 710021, China

Received:2017-03-07 Online:2017-11-26 Published:2017-11-26
Supported by:
Supported by National Natural Science Foundation of China (41374124, 41574122) and Major Project of National Science and Technology (2016ZX05006002-004)

摘要/Abstract

摘要： 针对单一分辨率的数字岩心模型无法完整描述岩心不同尺度结构信息的问题，以砂岩样品为例，通过对岩心多分辨率CT成像，采用基于特征的图像配准方法实现了不同分辨率岩心图像的精确匹配。通过融合不同分辨率岩心扫描图像进行孔隙分割和矿物分割，构建多尺度、多组分的数字岩心模型。结果表明：多尺度多组分数字岩心模型可以表征跨尺度的岩心孔隙结构，孔隙分布与核磁测量结果有较好的一致性；与Qemscan相比，数字岩心矿物体积分数同X衍射测定结果更吻合，真实地还原了岩心不同组分的结构信息。

关键词: 图像配准, 数字岩心, 多尺度, 多组分

Abstract: It is difficult to represent the multi-scale structure feature of rocks by using a single resolution digital core model. Through taking a sandstone sample, by means of core multi-resolution CT imaging,the accurate matching of core images with different resolutions is realized by the feature based image registration method. The multi-scale and -component digital core model is constructed along with the segmentation of pores and minerals in the registered images based on image fusion. The results show that the multi-scale and -component digital core model could represent the cross scale pore structures; and the pore distribution agrees with the results from NMR. The mineral contents of digital core are more consistent with the results from XRD than that from Qemscan. The multi-scale and -component digital core model factually restores the structure features of all rock components.

Key words: image registration, digital core, multi-scale, multi-component

中图分类号:

P313.1

崔利凯, 孙建孟, 闫伟超, 高银山, 王洪君, 宋丽媛. 基于多分辨率图像融合的多尺度多组分数字岩心构建[J]. 吉林大学学报(地球科学版), 2017, 47(6): 1904-1912.

Cui Likai, Sun Jianmeng, Yan Weichao, Gao Yinshan, Wang Hongjun, Song Liyuan. Construction of Multi-Scale and -Component Digital Cores Based on Fusion of Different Resolution Core Images[J]. Journal of Jilin University(Earth Science Edition), 2017, 47(6): 1904-1912.

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基于多分辨率图像融合的多尺度多组分数字岩心构建

Construction of Multi-Scale and -Component Digital Cores Based on Fusion of Different Resolution Core Images

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