高邮凹陷E1F4烃源岩的生油效率研究

Study on Oil Generation Eff iciency of E1F4 Source Rock in Gaoyou Depression

为研究油气形成有利区的局部分布规律,文章以苏北盆地高邮凹陷阜宁组四段(E1F4)地层为研究区域,通过对研究区域生成一个由常规地图组成的多参数数据集,包括有机质丰度、有机质成熟度、地层温度、残留地层厚度、暗色泥岩厚度等,集成到地理信息系统(GIS)环境中,通过加权指数叠加法和主成分分析法(Principal Component Analysis,PCA),得出高邮凹陷阜宁组地层油气藏类型空间分布特征,从而评价油气生成的有利区域。根据研究,邵伯、真武、曹庄和富民地区是油气生成最有利地区,其次是黄珏、马家嘴、永安、花庄和周庄地区。

In order to study the local distribution law of the favorable areas for oil and gas formation,this paper takes the formation of the fourth member of Funing Formation(E1F4)in Gaoyou Depression of Subei Basin as the research area,and generates a multi parameter data set composed of conventional maps,including organic matter abundance,organic matter maturity,formation temperature,residual formation thickness,dark mudstone thickness,etc.,which are integrated into the geographic information system(In the environment of GIS),through the method of weighted index superposition and principal component analysis(PCA),the spatial distribution characteristics of oil and gas reservoir types in Funing Formation of Gaoyou Depression are obtained,so as to evaluate the favorable areas for oil and gas generation.According to the study,Shaobo,Zhenwu,Caozhuang and Fumin areas are the most favorable areas for oil and gas generation,followed by Huangjue,Majiazui,Yong’an,Huazhuang and Zhouzhuang areas.