摘要
准噶尔盆地永进地区侏罗系西山窑组埋深达到6 000 m,主要为低孔渗-特低孔渗储层。通过对西山窑组储层的岩石学特征、孔隙结构特征的分析认为,储层储集空间类型以残余粒间孔和次生溶孔为主;通过对沉积相带、地层压力、储层埋深和成岩作用等储层影响因素研究分析,确定研究区有利储层分布的主控因素为沉积微相、异常压力及不整合对储层的改造三个方面。综合考虑以上因素,确定研究区内永2-永1-永3一线为有利储层发育区域。
The buried depth of Jurassic Xishanyao formation in Yongjin area,Junggar basin is up to 6 000 m and it is mainly of low permeability- ultra low permeability reservoirs.Therefore,the reservoir characteristics analysis and clear distribution of favorable reservoirs are the main research contents in the area.Through the analysis of petrological characteristics and pore structure characteristics,the reservoir space types of the reservoirs are firstly given priority to residual intergranular pore and secondarily to solution pores.Based on the influential factors analysis of sedimentary facies,formation pressure,reservoir buried depth and diagenesis,the main controlling factors of the favorable reservoirs distribution in the study area are determined to be sedimentary microfacies,abnormal pressure and unconformity reform.By taking the above factors into consideration,Yong-2,Yong-1 and Yong-3 are determined to be the favorable area for the reservoir development.
出处
《石油地质与工程》
CAS
2015年第3期28-30,145,共5页
Petroleum Geology and Engineering
基金
国家科技重大专项(2011ZX05002-002)资助
关键词
准噶尔盆地
永进地区
储层特征
沉积微相
异常压力
Junggar basin
reservoir characteristics
sedimentary microfacies
abnormal pressure
reservoir influ-ence factors
