| 鄂尔多斯盆地北部苏里格庙含油气区二叠系山西组及下石盒子组盒八段岩相古地理 |
| |
| 引用本文： | 沈玉林,郭英海,李壮福.鄂尔多斯盆地北部苏里格庙含油气区二叠系山西组及下石盒子组盒八段岩相古地理[J].古地理学报,2006,8(1):53-62. |
| |
| 作者姓名： | 沈玉林 郭英海 李壮福 |
| |
| 作者单位： | 中国矿业大学资源与地球科学学院，江苏徐州 221008 |
| |
| 基金项目： | 冯增昭教授、邵龙义教授等为本文提出了宝贵的意见和建议,谨致衷心感谢! |
| |
| 摘 要： | 以测井资料和岩心观察为基础，对鄂尔多斯盆地北部苏里格庙含油气区的二叠系山西组及下石盒子组盒八段识别出了辫状河、曲流河、三角洲和湖泊等4种沉积相类型。利用层序地层学原理，将山西组和下石盒子组盒八段划分5个三级沉积层序，建立了苏里格庙含油气区层序地层格架。编制了以体系域为单位的山西组和下石盒子组盒八段沉积期岩相古地理图，探讨了层序地层格架内的山西组和下石盒子组盒八段沉积期岩相古地理特征及演化规律。山西期古地理格局呈南北向相分异的曲流河-三角洲沉积；盒八段沉积期冲积体系大范围向研究区南部迁移，形成了以辫状河沉积为主的河流-三角洲沉积。河道砂体是苏里格庙含油气区有利的砂质储集体类型，主要发育在低位体系域。实践表明，以体系域为单位编制的岩相古地理图，可以清楚地展示不同沉积时期的沉积微相展布与迁移变化，是有利储层预测的一种有效方法。
|
| 关 键 词： | 沉积相 体系域 苏里格庙地区 山西组 下石盒子组 二叠系 鄂尔多斯盆地 |
| 文章编号： | 1671-1505（2006）01-0053-10 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-12-19 |
Sedimentary facies of the Shanxi Formation and Member 8 of Xiashihezi Formation of Permian in Suligemiao area, Ordos Basin |
| |
| Shen Yulin,Guo Yinghai,Li Zhuangfu.Sedimentary facies of the Shanxi Formation and Member 8 of Xiashihezi Formation of Permian in Suligemiao area, Ordos Basin[J].Journal of Palaeogeography,2006,8(1):53-62. |
| |
| Authors: | Shen Yulin Guo Yinghai Li Zhuangfu |
| |
| Institution: | School of Resources and Earth Science, China University of Mining and Technology, Xuzhou 221008, Jiangsu |
| |
| Abstract: | Based on the analysis on drilling data and the observation of cores, four different sedimentary facies including braided fluvial, meandering fluvial, delta and lake are recognized from the Shanxi Formation to the Member 8 of Xiashihezi Formation of Permian in Suligemiao area, northern Ordos Basin. By the theory of sequence stratigraphy, the Shanxi Formation and the Member 8 of Xiashihezi Formation are divided into five third-order sedimentary sequences, and the sequence strati-graphic framework is set up. The sedimentary facies maps are drawn with the unit of system tract, and the features and evolution regularity of the sedimentary facies are discussed in the sequence strati-graphic framework. During the sedimentary period of Shanxi Formation, the sedimentary facies pattern was the meandering fluvial-delta deposit, which showed a sedimentary differentiation from north to south. During the sedimentary period of Member 8 of Xiashihezi Formation, the alluvial system migrated into the south of the study area widely and formed the fluvial-delta deposit, in which the braided fluvial was dominant. The channel sand body is favorable reservoir in Suligemiao area, and is mainly developed in lowstand system tracts. By the sedimentary facies map with the unit of system tract, the distribution and migrating direction of sedimentary facies are shown distinctly. It is an effective method to prospect the favorable reservoir. |
| |
| Keywords: | sedimentary facies system tract Suligemiao area Shanxi Formation Xiashihezi Formation Permian Ordos Basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《古地理学报》浏览原始摘要信息 |
| 点击此处可从《古地理学报》下载免费的PDF全文 |
