鄂尔多斯盆地西缘石炭纪羊虎沟组海岸砂坝特征与成因  

Characteristics and genesis of coastal sand bar in Carboniferous Yanghugou Formation,western margin of Ordos Basin

作　　者：何文祥[1,2] 张梦蝶 胡勇[1,2] 侯云东[3] HE Wenxiang;ZHANG Mengdie;HU Yong;HOU Yundong(Hubei Key Laboratory of Petroleum Geochemistry and Environment(Yangtze University),Wuhan 430100,Hubei;Key Laboratory of Exploration Technologies for Oil and Gas Resources,Ministry of Education(Yangtze University),Wuhan 430100,Hubei;Research Institute of Exploration and Development,Changqing Oilfield Company,PetroChina,Xi’an 710018,Shaanxi)

机构地区：[1]油气地球化学与环境湖北省重点实验室(长江大学),湖北武汉430100 [2]油气资源与勘探技术教育部重点实验室(长江大学),湖北武汉430100 [3]中国石油长庆油田分公司勘探开发研究院,陕西西安710018

出　　处：《长江大学学报（自然科学版）》2024年第3期1-9,共9页Journal of Yangtze University(Natural Science Edition)

基　　金：国家自然科学基金项目“油-水-岩体系中酚类化合物分配规律及其应用研究”(41872144);国家油气重大专项“致密油富集规律与勘探开发关键技术”(2016ZX05046-002),“致密气富集规律与勘探开发关键技术”(2016ZX05047-005)。

摘　　要：因对鄂尔多斯盆地西缘石炭纪羊虎沟组海岸砂坝的成因认识不足,阻碍了油藏的进一步开发。在研究区惠探1井、鄂32井、鄂33井、乐1井等取心井的岩心观察和区域地质等资料的基础上,结合岩石粒度分析、测井曲线特征分析和元素分析,对鄂尔多斯盆地西缘羊虎沟组海岸砂坝的沉积特征、砂坝砂体沉积特征和控制因素进行了系统研究。结果表明,研究区砂坝呈条带状沿古隆起聚集,南部的砂坝砂体厚度较大。该结果可为鄂尔多斯盆地羊虎沟组有利区的下一步勘探开发提供有益参考。Due to the lack of understanding of the genesis of the Carboniferous Yanghugou Formation coastal sand bar in the western edge of Ordos Basin,which hinders the further development of the reservoir.This paper,based on the core observation and regional geological data of the core wells such as well Huitan1,well E32,well E33,well Le1 in the study area,combined with the analysis of rock grain size,log curve characteristics and element analysis,analyzes the sedimentary characteristics of Yanghugou Formation coastal sand bar in the western edge of the Ordos Basin The sedimentary characteristics and control factors of the sand body of the sand bar are systematically studied.The results show that the sand bars in the study area are banded and gathered along the paleo-uplift,and the sand body thickness of the sand bars in the south is large.The results can provide a useful reference for the next exploration and development of the favorable areas of Yanghugou Formation in the Ordos Basin.

关 键 词：石炭纪 海岸砂坝 羊虎沟组 沉积特征 控制因素 

分 类 号：TE121.3[石油与天然气工程—油气勘探]