鄂尔多斯盆地麻黄山西区块长6^1油层组沉积相研究  

Research on Sedimentary Facies of Chang 6^1 Oil Reservoir Group of WesternMahuangshan Area in Ordos Basin

作　　者：任小庆[1] 侯明才[2,1] 邓敏[1] 王艳琴[1] 

机构地区：[1]成都理工大学沉积地质研究院,四川成都610059 [2]油气藏地质及开发工程国家重点实验室(成都理工大学),四川成都610059

出　　处：《东华理工大学学报（自然科学版）》2011年第1期25-32,共8页Journal of East China University of Technology(Natural Science)

基　　金：国家"十一五"重大专项"鄂尔多斯盆地大型岩性地层油气藏勘探开发示范工程"(2008ZX05044 1-2)

摘　　要：通过对研究区内12口钻井岩芯的岩石学特征、沉积构造等特征的综合认识,结合沉积微相平面展布及连井地层对比,对麻黄山西区块三叠系延长组长61油层组进行了沉积环境分析,识别出6种沉积构造,5种沉积微相,总结出6种微相接触样式。研究结果表明,延长组长61油层组为三角洲前缘沉积,垂向上表现为以反韵律为主伴有短期正韵律的沉积特征,体现了三角洲前积的过程。By comprehensive understanding of more than 12 wells in rock core characteristics and sedimentary structures characteristic in study area,combining logging data,distribution and fine comparison,the sedimentary environment of the study area are analyzed,and 6 kinds of sendimenty structures,5 kinds of the main sedimentary microfacies and 6 kinds of micro-contact styles are identified.The results show that Chang 61 formation is front of delta.Anti-rhythm is mainly in vertical and positive rhythm in short period.It reflects the process of constant progradation.

关 键 词：鄂尔多斯盆地 麻黄山西区块 延长组 沉积相 

分 类 号：P618.13[天文地球—矿床学]