用地层元素测井资料定量计算火成岩岩性组分  

Quantitative Calculation of Igneous Rocks Lithology by Using Element Logging Data

作　　者：金云智 高楚桥[2] 高永德 陈嵘 杜超 JIN Yunzhi;GAO Chuqiao;GAO Yongde;CHEN Rong;DU Chao(Zhanjiang Branch,CNOOC China Limited,Zhanjiang,Guangdong 524057,China;Key Laboratory of Exploration TechnoIogies for Oil and Gas Resoures,Ministry of Education,Yangtez University,Jingzhou,Hubei 434023,China)

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]油气资源与勘探技术教育部重点实验室,长江大学,湖北荆州434023

出　　处：《测井技术》2018年第5期521-524,共4页Well Logging Technology

摘　　要：火成岩岩石类型复杂,不同区域、层位岩性多变,且矿物成分通常具有不稳定性,常规测井评价手段识别火成岩岩性难度比较大,需要应用特殊的测井项目和评价手段。为解决地层元素测井资料在火成岩岩性定量计算中应用的问题,在地层组分分析基础上建立火成岩地层元素测井资料与其各岩性间的关系模型;运用最优化算法,从地层元素测井Al、Ca、Fe、H、Si、S、Ti等地层元素含量出发,定量计算火成岩岩性组分的含量。该研究成果应用在火成岩岩石类型比较简单且区域分布比较稳定的新疆三塘湖盆地效果较好,实现了用地层元素测井资料直接定量计算火成岩岩性组分。Igneous rocks are characterized by complex rock types,variable lithology and unstable mineral composition.Which makes it difficult to effectively identify igneous rock lithology from conventional logging data,and often requiring the use of special logging data or evaluation methods.In order to solve the problem of the application of element logging data in the quantitative calculation of igneous rock lithology,this paper establishes an igneous rock lithology calculation model based on elemental logging data according to the analysis of formation components.This model is based on the optimization algorithm,and uses the elements such as Al,Ca,Fe,H,Si,S,Ti to quantitatively calculate the content of lithologic components of igneous rocks.The research results have been successfully applied to the Santanghu Basin in Xinjiang (the igneous rock types in this basin are relatively simple and the regional distribution is relatively stable),thus achieving the purpose of directly obtaining lithologic components of igneous rocks by using element logging data.

关 键 词：测井解释 地层元素测井 元素含量 定量计算 火成岩岩性 最优化算法 

分 类 号：P631.84[天文地球—地质矿产勘探]