摘要
利用地震、钻井及地质资料,对研究区的构造样式进行了系统识别,通过分析各类构造样式内部的沉积类型和输导体系,研究了构造样式对油气分布的控制作用。研究结果表明,沾化凹陷新生界主要发育翘倾断块、滑动断阶、潜山披覆和重力背形4类伸展构造样式,其分布呈现出明显的规律性;各类构造样式对油气运聚的贡献有所差异,翘倾断块和滑动断阶是油气向盆地边缘运移的有利通道,堑垒断块、潜山披覆油气最易富集,重力背形的油气富集程度受规模、油源、储层发育程度等多个因素的控制。
Based on seismic, drilling and geological data, the structural styles are systematic.ally identified in study area. Through the analysis of internal deposit types and migration pathways of all kinds of structural styles, this paper researches the control action of the structural styles on hydrocarbon distribution. The research results show that four types of stretch structure styles, including warped pour block, sliding step, buried hill with overlying and gravity antiformal, developed in Cainozoic in Zhanhua Depression. The distributions of various structural styles show obvious regularity. Different kinds of structural styles contribute differently in migration and accumulation of hydrocarbon. The warped pour block and the sliding step are the favorable channel of hydrucarbon migration towards basin edge. The hydrocarbon is most easily enriched in the cut barrier hlock as well as the buried hill with overlying. The hydrocarbon enrichment in the gravity antiform can be affected by scale, oil source, reservoir development degree.
出处
《断块油气田》
CAS
2013年第3期296-300,共5页
Fault-Block Oil & Gas Field
基金
国家科技重大专项"渤海湾盆地精细勘探关键技术(二期)"(2011ZX05006-003)
关键词
构造样式
油气分布
输导体系
沉积体系
沾化凹陷
structural styles
hydrocarbon distribution
migration pathway
depositional system
Zhanhua Depression
