鄂尔多斯盆地子长-延长井区山西组沉积相研究  

Research on Sedimentary Facies of Shanxi Formation of Zichang-Yanchang Wells in Ordos Basin

作　　者：杨杰[1] 

机构地区：[1]西安石油大学地球科学与工程学院,西安710065

出　　处：《西安文理学院学报（自然科学版）》2016年第2期75-79,共5页Journal of Xi’an University(Natural Science Edition)

摘　　要：鄂尔多斯盆地子长-延长区块是延长探区重要的勘探地区,对该区山西组地层的专题研究很少,利用地震资料进行的研究更少.利用测井、地震、地质资料相结合的方法,通过对测井相、地震相、地层厚度、地震资料构造成图,结合古地理背景沉积环境综合分析,对鄂尔多斯盆地子长-延长区进行了沉积相研究.研究表明,研究区山西组沉积类型主要为河流三角洲,并识别出三角洲前缘亚相和水下分流河道、水下分流间湾、河口坝等多种沉积微相,对研究区山西组沉积环境进行了分析,研究成果为进一步勘探开发提供依据.Zichang-Yanchang block is an important exploration area of Yanchang exploration ar- eas in Ordos basin. There are few studies on the formation of Shanxi formation in this area, and research on the use of seismic data is less. In this paper, by using of the method of the combi- nation of well logging, seismic and geological data, through a comprehensive analysis of the combination of well logging facies, seismic facies, formation thickness, structural mapping by seismic data and sedimentary environment of ancient geography, research on sedimentary facies of Zichang-Yanchang block in Ordos basin was carried out. This research showed that the sedi- mentary type of Shanxi formation was mainly fluvial delta, and a variety of sedimentary microfa- cies such as subfacies of front of delta, underwater distributary channel, underwater distributary bay, and estuary dam and so on were identified, and the sedimentary environment of Shanxi formation in the research area were analyzed. The research results will provide the basis for fur- ther exploration and development.

关 键 词：沉积特征 沉积微相 山西组 鄂尔多斯盆地 

分 类 号：TE121.3[石油与天然气工程—油气勘探]