Albert盆地高孔渗储层非均质特征及分类研究  

The High Porosity and Permeability Reservoir Heterogeneity Characteristics and Classification Study of Albert Basin

作　　者：杨小丽 

机构地区：[1]中海油研究总院,北京100028

出　　处：《科学技术与工程》2016年第15期77-83,共7页Science Technology and Engineering

基　　金：国家科技重大专项(2011ZX05030-005)资助

摘　　要：针对Albert盆地北区J油田高孔渗砂岩储层,在沉积微相精细划分基础上,运用物性测试、岩心描述、粒度分析、扫描电镜分析等技术,采用储层沉积学综合分析方法,进行储层非均质性及影响因素分析。结果表明:J油田层间及微相砂体内均存在较强非均质性,普遍杂基和局部高含量碳酸盐充填,以及粒度变化是其主要影响因素;进而结合毛管压力曲线特征、孔喉参数、流动指数及储层评价标准,将J油田高孔渗储层分为4类,1、2类属于非常好储层范围,物性为特高孔渗类,渗流能力强,3类为好储层,4类为中上等储层。以此建立储层分类地质模型。达到更加客观表征油田储层非均质性及提高油田采收率的目的,并奠定Albert盆地北区储层研究方法及评价基础。With high porosity and permeability sandstone reservoir of J oilfield,the North of Albert Basin as the research object,on the basis of sedimentary microfacies fine classification,according to the physical property testing,core description,grain size analysis and scanning electron microscopy（ sem） analysis technology,the method of comprehensive analysis of reservoir sedimentology were used,the reservoir heterogeneity and influence factors were analyzed. The results showed that J oilfield had interlayer heterogeneity and intralayer heterogeneity of microfacies sand body. Ubiquitous matrix and local high content carbonate filling and the change of particle size were the main influence factors. And then combined with capillary pressure curves,pore throat parameters,flow index and reservoir evaluation criteria,J oil field high porosity and permeability reservoirs can be divided into four types,1 to2 class fall within the scope of very good reservoir,physical properties of high permeability,seepage ability strong,good reservoir in 3 class,4 class for secondary reservoir,and established the geological model of reservoir classification,achieve more objective characterization of oil field reservoir heterogeneity and the purpose of improving oil field recovery. At the same time,can act as foundation for overall research methods and evaluation of reservoir for the North of Albert Basin.

关 键 词：高孔渗储层 储层沉积学 储层非均质性 储层分类 油田采收率 Albert盆地 

分 类 号：TE122.2[石油与天然气工程—油气勘探]