【摘要】 综合利用岩性、测井、地震属性反演等资料,识别出了海拉尔盆地乌尔逊凹陷南部南一段的沉积相类型,主要有辫状河三角洲、扇三角洲和湖泊,分析了每种沉积相的亚相和微相的发育特征。通过等值线图件的编制并结合地震属性反演,勾绘了南一段各个旋回的沉积相平面图,分析了沉积相的展布特征。本区南一段沉积时期以湖泊为沉积背景,扇三角洲主要分布在凹陷的北部并延伸至中部,辫状河三角洲主要分布在凹陷的南部,最后以沉积相展布及演化特征为基础并结合区域地质背景建立了南一段的沉积相模式。更多还原

【Abstract】 Base on the analysis of lithology,well log,seismic attributes extracted etc,the sedimentary facies of south Wuerxun depression of Hailaer basin was studied.The face types are braided river delta,fan delta and lake,then the sub-face and micro-face are analyzed.The figures of sedimentary face are draw up by combination of some basic contours and slices of seismic.During the time of K1n1,fan delta maintainly develops in the north of the depression and going to the center,while the braided river maintainly develops in the south.Finally the model of sedimentary face is established base on the study of facies distribution,evolution and the geological setting of the study area.更多还原