基于因子分析法的干热岩地热资源热储评价  

Geothermal storage evaluation of geothermal resources in hot dry rock based on factor analysis method

作　　者：陈海雯 宋荣彩[1] 张超[1] 梁元[2,3] 王迎春 郑峰 王彦力 王洪辉[1] CHEN Haiwen;SONG Rongcai;ZHANG Chao;LIANG Yuan;WANG Yinchun;ZHENG Feng;WANG Yanli;WANG Honghui(State Key Laboratory of Oil and Gas Reservoir Geology and Development Engineering,Chengdu University of Technology,Chengdu 610059,China;School of Management Science,Chengdu University of Technology,Chengdu 610059,China;Sichuan Key Laboratory of Mathematical Geology,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059 [2]成都理工大学管理科学学院,成都610059 [3]数学地质四川省重点实验室(成都理工大学),成都610059

出　　处：《成都理工大学学报（自然科学版）》2023年第3期333-350,共18页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金重大项目(52192622)。

摘　　要：为建立干热岩地热资源储层评价方法,首先对全球典型干热岩项目的地热地质背景及热储特征进行分析梳理,优选出热储埋深、热储温度、大地热流值、地温梯度、热储岩性、热储物性6个评价指标,结合因子分析法建立干热岩地热资源储层评价方法,通过因子分析的降维方法,提取出相互独立的影响因子,在保留原始数据大部分信息的前提下,有效降低对热储评价影响因素的分析难度,减少评价过程中的工作量。利用该方法,选取中国11个干热岩地热资源研究区,对其热储条件进行排名。最终评价结果显示,西藏羊八井、青海共和盆地、冀东平原马头营热储条件相对较好。In this paper,the geothermal geological background and heat storage characteristics of typical dry-hot rock projects in the world are sorted out and analyzed,and six evaluation indexes including buried depth of hot rock,heat storage temperature,terrestrial heat flow value,geothermal gradient,heat storage lithology and heat storage property are extracted from summarization,which lead to the establishment of evaluation method of dry-hot rock geothermal resources by the combination of factor analysis method.Through the dimensionality reduction method of factor analysis,independent influence factors are extracted,which can effectively reduce the difficulty of analyzing influence factors of heat storage evaluation and reduce the workload in the evaluation process on the premise of retaining most of the information of the original data.Finally,11 dry-hot-rock geothermal resource research areas in China were selected as thermal resource evaluation targets,and their heat storage conditions were ranked.The final evaluation results show that the heat storage conditions in Yangbajing of Tibet,Gonghe Basin in Qinghai and Matouying in east Hebei plain are relatively good.This method provides a theoretical reference for the evaluation of hot dry rock geothermal resource reservoirs.

关 键 词：干热岩 热储分类 因子分析 热储岩性 

分 类 号：TE132.9[石油与天然气工程—油气勘探]