| 陕甘宁盆地西峰油田主要产层储油砂体沉积微相组合及特征 |
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| 引用本文： | 刘自亮,王多云,王峰,李树同,王志坤,秦红.陕甘宁盆地西峰油田主要产层储油砂体沉积微相组合及特征[J].沉积学报,2005,23(2):248-254. |
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| 作者姓名： | 刘自亮 王多云 王峰 李树同 王志坤 秦红 |
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| 作者单位： | 中国科学院兰州地质研究所,兰州,730000;中国科学院研究生院,北京,100069;中国科学院兰州地质研究所,兰州,730000 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 以鄂尔多斯盆地西峰地区晚三叠世延长组为例,对辫状河三角洲前缘沉积体系中以水下分流河道和河口坝两种储油微相为主导的多种微相组合进行研究,提出将其划分为“水下分流河道区”、“水下分流河道与河口坝混合区”、“河口坝区”和“河口坝与滑塌体混合区”四段微相组合区。文中对辫状河三角洲前缘中的沉积微相进行了详细刻画,例如,将水下分流河道划分为箱形叠加式、箱-钟形叠加式和钟形叠加式3种;将水下分流河道与河口坝组合划分为“河上坝”和“坝上河”两大类,及其以河为主的“坝上河”、以坝为主的“坝上河”、连续式“河上坝”和叠加式“河上坝”等4种亚类;将河口坝组合划分为迁移河口坝和叠加河口坝;将河口坝与滑塌体组合划分为坝顶滑塌和坝底滑塌,并讨论了各微相组合的形成机制。
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| 关 键 词： | 储油砂体微相组合 水下分流河道 辫状河三角洲前缘 西峰油田 陕甘宁盆地 |
| 文章编号： | 1000-0550（2005）02-0248-07 |
| 收稿时间： | 2004-04-30 |
| 修稿时间： | 2004-12-20 |
The Microfacies Combination and Characteristic of Main Sandbodies in Xifeng Oil Field, Shan-Gan-Ning Basin |
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| LIU Zi-liang,WANG Duo-yun,WANG Feng,LI Shu-tong,WANG Zhi-kun,QIN Hong.The Microfacies Combination and Characteristic of Main Sandbodies in Xifeng Oil Field, Shan-Gan-Ning Basin[J].Acta Sedimentologica Sinica,2005,23(2):248-254. |
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| Authors: | LIU Zi-liang WANG Duo-yun WANG Feng LI Shu-tong WANG Zhi-kun QIN Hong |
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| Institution: | 1.Lanzhou Institute of Geology, Chinese Academy of Sciences Lanzhou 730000;2.Graduate School of Chinese Academy of Science, Beijing 100069 |
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| Abstract: | The braided delta front are developed in Yanchang Formation in Xifeng area of Shan-Gan-Ning basin, which is mainly composed of the submerged distributry channels and mouth bars. It can be divided into submerged distributary channels section, sublnerged distributary channels together with mouth bars and mouth bars section. Based on the research of submerged distributary channels and mouth bars, the abundant sandbodies assemblage can reflect different sedimentary environments. For instance, submerged distributary channels section is composed of trunk sandbodies, campaniform sandbodies and campaniform-trunk sandbodies etc. The relationship between the characteristics and quality of the reservoirs and their physical property and oil - bearing property is analyzed and the law of oil and gas distribution in the area is described, which provides reliable basis for the further exploration and development of the area. |
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| Keywords: | microfacies combination of main sandbody submerged distributary channel braided delta front Xifeng oil field Shan-Gan-Ning basin |
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