In order to master the distribution of oil and water in Xujiaweizi syncline,the distribution of oil and water in different structural units and the main controlling factors are analyzed on the basis of the fine division of structural units in Xujiaweizi.It is found that the study area can be divided into three structural units,and the distribution of oil and water mainly presents as upper oil and water.The oil-water enrichment layers of each structural unit are different,mainly because of their differences in reservoir genesis:(1)The trough area is mainly charged by the reverse source fault,which is supplied with hydrocarbon by the weak and double strong charging modes,and the trap is formed by the fault and the interaction of fault and li-thology.(2)The southern slope area is mainly charged by the reverse ridge source fault.(3)The northern Slope area is charged by the ridge source fault and the reverse source fault.The slope area is dominated by strong charging mode,and the trap is mainly formed by tectonic process.The research results are of refer-ence significance for understanding the hydrocarbon accumulation rules of different structural units and guiding oil and gas exploration.
关键词
徐家围子向斜/构造单元/洼槽区/油水分布/主控因素
Key words
Xujiaweizi syncline/Construction unit/Depression area/Oil water distribution/Main control factors
维普
万方数据