| 辽河滩海地区古近系层序地层特征及控砂、控藏作用 |
| |
| 引用本文： | 张凤莲,单俊峰,吴兴录,樊太亮,高志前.辽河滩海地区古近系层序地层特征及控砂、控藏作用[J].现代地质,2012,26(3):560-568. |
| |
| 作者姓名： | 张凤莲 单俊峰 吴兴录 樊太亮 高志前 |
| |
| 作者单位： | 1. 辽河油田勘探开发研究院,辽宁盘锦,124010
2. 中国地质大学能源学院,北京,100083 |
| |
| 摘 要： | 运用层序地层学原理,对辽河研究区滩海地区古近系主要构造沉积旋回和关键层序界面特征进行分析,划分出4个二级层序和11个三级层序。结果显示:古近系层序的发育特征主要受构造活动的性质、强度及沉积旋回控制,二级层序界面为构造格局、沉积环境转换界面,控制沉积体系和相类型;三级层序界面为层序叠加样式或沉积环境转换面,控制层序内的体系域特征和演化。平面上,砂体分布受古地貌、坡折带性质和规模控制;纵向上,砂体发育受不同级次的沉积旋回或体系域控制。储盖组合分析,表明,二级层序和最大区域湖泛面控制成藏组合,三级层序及体系域控制油气层纵向分布。
|
| 关 键 词： | 断陷盆地 层序特征 坡折带类型 砂体展布 油藏分布 |
Stratigraphic Sequence Characteristics of Paleogene in the Beach Area in Liaohe Depression and the Control Effect on Sand and Reservoir Forming |
| |
| ZHANG Feng-lian
,
SHAN Jun-feng
,
WU Xing-lu
,
FAN Tai-liang
,
GAO Zhi-qian.Stratigraphic Sequence Characteristics of Paleogene in the Beach Area in Liaohe Depression and the Control Effect on Sand and Reservoir Forming[J].Geoscience——Journal of Graduate School,China University of Geosciences,2012,26(3):560-568. |
| |
| Authors: | ZHANG Feng-lian SHAN Jun-feng WU Xing-lu FAN Tai-liang GAO Zhi-qian |
| |
| Institution: | 1.Institute of Exploration and Development of Liaohe Oilfield,Panjin,Liaoning 124010,China; 2.School of Energy Resources,China University of Geosciences,Beijing 100083,China) |
| |
| Abstract: | Based on the sequence stratigraphy theory,this study analyzed the main structural sedimentary cycles and key sequence boundary features of Paleogene in the beach area in Liaohe depression,and four secondary-order sequences and eleven third-order sequences were defined.The results reveal that the sequence development features of Paleogene in the study area are mainly controlled by tectonic movement,tectonic intensity and sedimentation cycles.The secondary-order sequence boundary can be considered as the transition interface of the structural configuration and sedimentary environment,controlling the sedimentary system and types of sedimentary facies.The third-order sequence boundary can be considered as the transition interface of the sequence superposition pattern and sedimentary environment,controlling the features and evolution of system tract within the sequence.The distribution of sand bodies was affected by the paleogeomorphic model and slope scale.The development of sand bodies was vertically controlled by depositional cycles and system tracts.The study on the reservoir-cap assemblage indicates that the secondary-order sequence and the maximum regional flooding surface affect the reservoir forming configuration,and the third-order sequence and system tract control the vertical distribution of oil and gas. |
| |
| Keywords: | depression sequence characteristic slope break type distribution of sand bodies distribution of oil and gas reservoir |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
