摘要
通过油藏解剖和油藏分布与成藏条件空间的分布关系,对三肇凹陷扶杨油层油分布规律及其控制因素进行研究,得到三肇凹陷扶杨油层油剖面分布有3个特征:油主要分布在距青一段源岩底部300m深度范围内;油主要分布在扶余油层,少量分布在杨大城子油层;上油下水分布.油平面分布有2个特征:油围绕着凹陷呈环带分布;油聚集在高断块上的地垒构造.三肇凹陷扶杨油层油在剖面上的分布,主要受青一段源岩生成的油向下"倒灌"运移深度、层位和油源充足程度的控制,油在平面上分布主要受青一段源岩生成的油向下"倒灌"运移范围、距油源远近和油源充足程度的控制.
By oil reservoir anatomy and the relation between oil reservoir distribution and spatial distribution of oil accumulation conditions,oil distribution law in FY oil layers in Sanzhao depression and the influence factors were studied.It was considered that the distribution of oil in FY oil layers in Sanzhao depression on the section had 3 characteristics:Firstly,oil was mainly distributed in the depth range of 300m from the bottom of K1qn1 source rocks;secondly,oil was mainly distributed in Fuyu oil layer,a little in Yangdachengzi oil layer;and thirdly,oil was distributed in the upper while water in the lower.The distribution of oil in the plane had 2 characteristics:oil was distributed around the depression in ring zone;and it was accumulated on high fault block.The distribution of oil in FY oil layers in Sanzhao depression on the section was mainly affected by the depth and horizon of downward migration of oil generated by K1qn1 source rocks and adequacy extent of oil source.The distribution of oil in the plane was mainly affected by the range of downward migration of oil generated by K1qn1 source rocks,the distance from oil source and adequacy extent of oil source.
出处
《大庆石油学院学报》
CAS
北大核心
2009年第2期1-5,共5页
Journal of Daqing Petroleum Institute
基金
国家"973"重点基础研究项目(2001CB209104)
关键词
三肇凹陷
扶杨油层
油分布规律
控制因素
“倒灌”运移
Sanzhao depression
FY oil layers
oil distribution law
influence factor
migration downward
