石油实验地质2016，Vol.38Issue(5)：609-618,10.DOI:10.11781/sysydz201605609
准噶尔盆地西缘车排子地区侏罗系储层特征及控制因素
Characteristics and controlling factors of Jurassic reservoirs in Chepaizi area, western Junggar Basin
摘要
Abstract
We analyzed the characteristics of Jurassic reservoirs in the Chepaizi area in the western Junggar Basin using thin section microscopy, core description and physical property analysis. Combined with the study of petrophy⁃sical parameter cutoffs, we summarized the controlling factors of reservoirs, and divided reservoirs among types. The results showed that reservoirs in the study area mainly develop five lithofacies including matrix⁃supported conglomerate facies, particle⁃supported conglomerate facies, conglomeratic sandstone facies, sandstone facies and siltstone facies. The conglomerate reservoirs had limited reservoir space with very⁃low porosity and ultra⁃low permeability. The sand⁃stone reservoirs develop comparatively more reservoir space, mainly primary pores, and show the characteristics of middle to high porosity and permeability. By the quantitative evaluation of diagenesis, we identified 11 diagenetic facies. The properties of reservoirs are mainly controlled by lithofacies, and diagenesis promoted the differentiation of reservoirs. Combined with petrophysical parameter cutoff and reservoir properties, three reservoir types are identified in this area. TypeⅠreservoirs are the combinations of (conglomeratic) sandstone facies and medium to strong dissolution diagenetic facies, and the reservoir properties are best. TypeⅡreservoirs are the combinations of siltstone facies and weak cementation, weak dissolution diagenetic facies, and the reservoir properties are poorer than type I. Type Ⅲreservoirs are the combinations of conglomerate or sandstone facies and medium to strong cementation, dissolution diagenetic facies, and the reservoir properties are poorest.关键词
成岩作用/储集特征/储层类型/侏罗系/车排子地区/准噶尔盆地Key words
diagenesis/reservoir characteristics/reservoir types/Jurassic/Chepaizi area/Junggar Basin分类
能源科技引用本文复制引用
操应长,姜伟,王艳忠,金杰华,徐涛,葸克来,陈林..准噶尔盆地西缘车排子地区侏罗系储层特征及控制因素[J].石油实验地质,2016,38(5):609-618,10.基金项目
国家科技重大专项（2011ZX05009－003，2011ZX05006－003）、国家自然科学基金项目石油化工联合基金重点项目（U1262203）和中央高校基本科研业务费专项资金（ CX08001A）资助。 （）
