测井技术2024，Vol.48Issue(4)：407-415,9.DOI:10.16489/j.issn.1004-1338.2024.04.001
基于变分自编码器利用元素录井数据确定火成岩矿物含量的方法
Method for Determining Igneous Rock Mineral Content Using Element Logging Data Based on Variational AutoEncoder
摘要
Abstract
Igneous rocks exhibit significant variations in mineral content due to differences in magma types and the environment in which they solidify,and the skeleton parameters of different lithology are obviously different.The determination of mineral content of the rock matrix is an important task in evaluating reservoirs,which is of great significance in stratigraphic lithology division,calculation of matrix parameters and study of depositional environments.In this study,a predictive model for mineral content in igneous rocks is proposed.The model utilizes data from 17 elements obtained through element logging.It employs a VAE(Variational AutoEncoder)approach to predict mineral content and reconstruct the elemental weight content.The model validation reveals that the proposed model has a smaller mean absolute error and mean square error compared to three typical methods:BP(Back Propagation)neural networks,ridge regression and support vector machines.Furthermore,the model is applied to a section of buried hill igneous rock well in the South China Sea.The results demonstrate the superiority of the proposed model over the typical algorithms while maintaining good applicability.关键词
火成岩/矿物含量/变分自编码器/元素录井Key words
igneous rock/mineral content/VAE(Variational AutoEncoder)/element logging分类
天文与地球科学引用本文复制引用
贾瑞龙,潘保芝,王清辉,李岩,管耀,王欣茹..基于变分自编码器利用元素录井数据确定火成岩矿物含量的方法[J].测井技术,2024,48(4):407-415,9.基金项目
国家自然科学基金项目"基于T2-I模型的蚀变火山岩导电机理和饱和度模型研究"(42204122) （42204122）
