松辽盆地西部斜坡区烃渗漏蚀变信息遥感探测  

Identifying hydrocarbon leakage induced anomalies through remote sensing techniques in the western slope of Songliao basin, China

作　　者：章桂芳[1] 沈晓华[1] 邹乐君[1] 李长江[2] 吴文渊[1] 张重[1] 苏楠[1] 孔凡立[1] 

机构地区：[1]浙江大学地球科学系,浙江杭州310027 [2]浙江省国土资源厅信息中心,浙江杭州310007

出　　处：《遥感学报》2009年第2期327-334,共8页NATIONAL REMOTE SENSING BULLETIN

基　　金：大庆油田有限公司“西部斜坡区稠油遥感评价研究”项目

摘　　要：使用陆地卫星ETM+7图像对松辽盆地西部斜坡区进行稠油探测,图像增强方法有主成分分析、波段比值和假彩色合成等。主成分因子1,3,4,5-PC3(1,3,4,5主成分分析的第3主成分),1,3,5,7-PC3,2,3,5,7-PC3和3,4,5,7-PC4与波段比值3/1,4/3,7/5和(4/3)-(2/3)等用于假彩色合成,在合成影像上圈定烃渗漏蚀变区域。结果表明烃渗漏蚀变区域与地质背景密切相关,与下伏油藏的分布大致相符。Among the surface sediments anomalies caused by hydrocarbon leakage of heavy oil reservoir, bleaching of red beds, enrichment of ferrous-iron and alterations of clay minerals and carbonates exhibit diagnostic spectral features. For heavy oil exploration in the western slope of Songliao Basin, ETM ＋ 7 image is used to identify anomaly caused by hydrocarbon leakage. Principal Component Analysis （PCA） , band ratio, and False Color Composition （FCC） are used in image process. Four principal components （PCs） including 1,3,4,5-PC3 （ the third component of the PCA on band 1, 3, 4 and 5 ）, 1 ,3,5,7-PC3, 2,3,5,7-PC3 and 3,4,5,7-PC4 show steady spectral enhancement for the hydrocarbon-induced minerals. The PCs are combined with band ratios of 3/1, 4/3 and 7/5 for FCC. Four FCC images are selected for hydrocarbon-induced area delineation. Result indicates that the identified anomalous area is related to the geological setting and consistent with the strata sections in most area.

关 键 词：稠油 烃渗漏 ETM+7 主成分分析(PCA) 波段比值 假彩色合成(FCC) 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] P618.13[自动化与计算机技术—控制科学与工程]