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| 辽河滩海西部海南—仙鹤地区古地貌特征及其控砂作用 | |
| 引用本文： | 王建平,樊太亮,高志前,侯伟,李一凡,贺永奎.辽河滩海西部海南—仙鹤地区古地貌特征及其控砂作用[J].现代地质,2012,26(2):333-341. |
| 作者姓名： | 王建平 樊太亮 高志前 侯伟 李一凡 贺永奎 |
| 作者单位： | 1. 中国地质大学能源学院,北京100083;中国地质大学海相储层演化与油气富集机理教育部重点实验室,北京100083 2. 中石油煤层气责任有限公司,北京,100028 3. 中石油长城钻探工程有限公司钻井一公司,辽宁盘锦,124010 |
| 基金项目： | 国家重大油气专项，中央高校基本科研业务费专项资金资助项目 |
| 摘 要： | 基于三维地震和测井资料分析,以层序地层分析和古地貌恢复技术相结合,根据地层剥蚀状况,将层序界面分为洼陷带内的平行不整合面、凹陷边缘超覆带的角度不整合面、旋转断块顶部的角度不整合面和潜山顶部强烈剥蚀不整合面4种类型,针对不同的界面类型采用不同的剥蚀地层恢复方法,重建了辽河滩海海南—仙鹤地区关键构造期古地貌形态。研究发现海南—仙鹤地区发育下切谷、陡坡断裂坡折带、古凸起等多种古地貌单元,古地貌整体呈现沟、梁斜列,下切沟谷和陡坡断裂坡折带发育,物源面积大、物源方向与海南断层斜交等特点。古地貌对物源体系、层序构成和砂体分布具有明显控制作用,具有"大沟对大扇,小沟对小扇"、砂体平面上分布受断层坡折控制、纵向分布受体系域控制等特点。 |
| 关 键 词： | 辽河滩海 古地貌 坡折带 下切谷 体系域 |
The Paleogeomorphology Features and Its Controlling Effects on Sandstone Distribution in Hainan-Xianhe Zone of the Western Beach Area of Liaohe Depression |
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| WANG Jian-ping , FAN Tai-liang , GAO Zhi-qian , HOU Wei , LI Yi-fan , HE Yong-kui.The Paleogeomorphology Features and Its Controlling Effects on Sandstone Distribution in Hainan-Xianhe Zone of the Western Beach Area of Liaohe Depression[J].Geoscience——Journal of Graduate School,China University of Geosciences,2012,26(2):333-341. | |
| Authors: | WANG Jian-ping FAN Tai-liang GAO Zhi-qian HOU Wei LI Yi-fan HE Yong-kui |
| Institution: | 1.School of Energy Resources,China University of Geosciences,Beijing 100083,China;2.The Key Laboratory of Marine Reservoir Evolution and Hydrocarbon Accumulation Mechanism of Ministry of Education,China University of Geosciences,Beijing 100083,China; 3.PetroChina Coalbed Methane Company Limited,Beijing 100028,China; 4.The Great Wall of Oil Drilling Engineering Company Limited Drilling Company,PetroChina,Panjin,Liaoning 124010,China) |
| Abstract: | Based on the analysis of 3D seismic and log data,and associated with the technology of the sequence stratigraphy and paleogeomorphology recovery,the sequence boundaries of Hainan-Xianhe zone of the western beach area of Liaohe depression are divided into four types according to the strata erosion level,including the parallel unconformity in the sag,the angular unconformity in overlap zone of the depression edge,the angular unconformity on the top of rotating fault blocks,and the angular unconformity on the top of the buried hill of the heavily erosion area.Different erosion recovery methods had been chosen for different surface types to reconstruct the key tectonic period paleogeomorphology of the zone,which shows that the area develops the incised valley,the slop break,and paleo-uplift.The paleogeomorphology presents the trough and the bridge arranged in oblique,incised valley and fault break in steep slop well developed,and provenance widely distributed and its direction cross intersected with Hainan fault.The paleogeomorphology plays an obvious role in controlling the provenance distribution,sequence stratigraphy constitution and the sandstone distribution,showing "the great trough developing the great fan,and the small trough to the little fan".The sandstone distribution is controlled by the fault breaks in plane and the system tracts in vertical. |
| Keywords: | beach area in Liaohe depression paleogeomorphology slop break incised valley system tracts |
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