摘要
从深入分析河流砂体与基准面旋回的关系出发,详细讨论了河流砂体在地层格架中的发育位置、分布规律、成因特征,以及层序界面对河流砂体几何形态、稳定性和储集性等特征的直接控制作用。在此基础上,提出基于高分辨率层序分析的、相当时间—地层反演的河流相小层砂体等时对比新技术方法,提出相控模式条件下的"等高程、非同期、异成因"和"非等高程、同期、同成因"砂体的两种等时对比模式。
As one of the most foundational and important matters in the study of oil-gas reservoir geology and exploitation engineering, the isochronically tracking correlation of fluvial sandbodies is a key technique to solve relevant problems. In this paper, the authors discuss the stratigraphic horizon and distribution of fluvial sandbodies in the base-level cycle and analyse the relationships between genetic types of the sandbodies and processions of the cycle. They also discuss the control of the horizon, distribution, genetic and sequence boundary surface on geometry, stability, reservoir property of sandbodies at both sides. A new technique of isochronically tracking correlation of fluvial sandbodies is proposed in the paper. It is obtained on the basis of high-resolution sequence stratigraphy analysis and age-stratigraphic playback in moderate time duration. And an isochronic fluvial sandbody correlation model of both “equielevation, nonsynchrone, hetero-origin” and “unequal-elevation, synchrone, identical genesis” under the control of lithofacies is supposed with the principle and operation procedure of technique.
出处
《成都理工大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第6期641-647,共7页
Journal of Chengdu University of Technology: Science & Technology Edition
关键词
高分辨率层序地层
河流相砂体
地层格架
等时对比
high-resolution sequence stratigraphy
fluvial sandbody
stratigraphic framework
isochronic correlation
