欧利坨子地区层序地层与沉积相研究  

THE STUDY OF SEQUENCE STRATIGRAPHY AND SEDIMENTARY FACIES IN QULITUOZI AREA

作　　者：黄国丽[1] 高娟[2] 薛辉[3] 

机构地区：[1]西北大学地质系,陕西西安710069 [2]长江大学油气资源与勘探技术教育部重点实验室 [3]长庆油田勘探开发研究院

出　　处：《新疆石油天然气》2010年第2期13-17,23,共6页Xinjiang Oil & Gas

摘　　要：利用现代层序地层理论和沉积学理论,主要从地质、录井和测井资料入手,结合地震资料,详细分析了研究区的层序地层发育特征、沉积微相发育情况。通过分析研究建立了欧利坨子沙三段的层序等时地层格架,将沙三段划分为一个完整的层序,由低位体系域、湖侵体系域和高位体系域所组成;该区沙三段物源主要来自北西向,主要发育冲积扇、扇三角洲平原和湖泊相。研究区冲积扇扇中、扇三角洲和分流河道发育,为主要沉积相带。沙三上亚段以扇中和分流河道沉积为主,沙三中、下段以扇三角洲和滨浅湖砂坝。By the theories of modern sequence stratigraphy and sedimentology ,mainly from the geological,logging and logging data,associated seismic data,we analyse the development characteristics of sequence stratigraphy,and the situation of sedimentary facies development about study area. Through analysis we establish the sequence stratigraphic framework of Es3 section in the Oulituozi area,the Es3 section will be divided into a complete sequence,the low system tract,transgressive systems tract ,and highstand systems tract; the provenance of study area mainly from north west,the area develop alluvial fan,fan delta plain and lake facies. The middle fan,fan delta and distributary channel are the dominant sedimentary facies. The sub-section of Es3上 pertains to middle fan and distributary channel deposit,Es3中and Es3下 belong to fan delta and shallow lake sand bar deposition.

关 键 词：层序地层 沉积相 沙三段 欧利坨子地区 

分 类 号：TE121.34[石油与天然气工程—油气勘探]