鄂尔多斯盆地胡尖山地区前侏罗纪古地貌特征与油气成藏模式  

Pre-Jurassic palaeogeomorphology characteristics and oil and gas reservoir-forming mode in Hujianshan area of Ordos Basin

作　　者：樊婷婷[1,2,3] 周梦影[1,2,3] 郭远智 刘玉栋 蔡玥 Fan Tingting;Zhou Mengying;Guo Yuanzhi;Liu Yudong;Cai Yue(College of Geology and Environment,Xi′an University of Science and Technology,Xi′an 710054,China;Geological Research Institute for Coal Green Mining,Xi′an University of Science and Technology,Xi′an 710054,China;Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation,Xi′an 710054,China;No.6 Oil Production Plant,CNPC Changqing Oilfield Branch,Xi′an 710016,China)

机构地区：[1]西安科技大学地质与环境学院,陕西西安710054 [2]西安科技大学煤炭绿色开采地质研究院,陕西西安710054 [3]陕西省煤炭绿色开发地质保障重点实验室,陕西西安710054 [4]中国石油长庆油田分公司第六采油厂,陕西西安710016

出　　处：《能源与环保》2024年第7期1-7,共7页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家自然科学基金项目(41641018);陕西省自然科学基础研究计划项目(2017JQ4028);西安科技大学博士研究启动项目(2020DQJ02)。

摘　　要：鄂尔多斯盆地侏罗系延安组油藏分布在不同程度上受到古地貌的控制。胡尖山地区地处甘陕、蒙陕2条古河交汇之处,古地貌刻画精度不足,严重制约了油气勘探开发的进程。综合完钻井、测井资料,分别采用印模法、残余厚度法并综合2种方法,在胡尖山地区划分出古河谷、河间丘、阶地、斜坡、坡嘴、低残丘6种古地貌单元,并进一步结合试油试采及生产动态资料,总结出坡嘴成藏和河间丘成藏2种成藏模式,研究结果为下一步勘探开发部署提供地质依据。The distribution of oil reservoirs in the Jurassic Yan′an Formation in the Ordos Basin is controlled to varying degrees by palaeomorphology.The Hujianshan area is located at the confluence of two ancient rivers,Gansu Shaanxi,Inner Mongolia Shaanxi.The accuracy of palaeogeomorphology characteristics is insufficient,which seriously restricts the progress of oil and gas exploration and development.Based on the combined drilling and logging data,six palaeogeomorphology units were divided in the Hujianshan area using impression method,residual thickness method,and comprehensive method,including ancient river valleys,inter river hills,terraces,slopes,slope mouths,and low residual hills.Furthermore,combined with oil testing and production performance data,two reservoir formation models,namely slope mouth reservoir-forming and inter river hill reservoir-forming,were summarized.The research results provide geological basis for the next exploration and development deployment.

关 键 词：鄂尔多斯盆地 胡尖山地区 侏罗系 古地貌 成藏模式 

分 类 号：TE122.1[石油与天然气工程—油气勘探]