彭伟,舒逸,陈绵琨,刘皓天,肖雄,管文静

• 1:中国石油化工股份有限公司江汉油田分公司勘探开发研究院

摘要(Abstract)：

四川盆地复兴地区侏罗系凉高山组致密砂岩储层近期表现出良好的勘探潜力，以X井和Z井为代表，均获得测试工业油气流。为了进一步明确复兴地区侏罗系凉高山组致密砂岩储层发育特征及控制因素，以该套砂岩为研究对象，通过岩心观察、普通薄片鉴定、扫描电镜观察及综合多种分析测试结果，从岩石学特征、沉积相、物性特征和成岩作用类型等多个方面对研究区目的层进行了精细刻画。研究结果表明，凉高山组致密砂岩储层总体表现为低孔低渗储层，储集空间以原生残余粒间孔发育为主，孔隙半径为10～50μm,喉道宽度为2～10μm。根据成岩作用对储层物性的影响，将压实作用、部分胶结作用归为破坏性成岩作用，溶蚀作用、构造作用和绿泥石的膜状胶结作用归为建设性成岩作用。本次研究明确了三角洲前缘水下分流河道微相最利于凉高山组砂岩储层的发育，而长石的溶蚀作用、构造成因的微裂缝和以绿泥石为胶结物的胶结作用对凉高山组致密砂岩储层的物性具有改善作用，沉积-成岩综合作用是四川盆地复兴地区凉高山组致密砂岩优质储层发育的重要条件。

关键词(KeyWords)： 凉高山组;致密砂岩;沉积作用;成岩作用;优质储层;四川盆地

Abstract:

Keywords:

基金项目(Foundation): 中国石油化工股份有限公司“十条龙”科研项目(P21078-2);中国石油化工股份有限公司科研项目(P23077)

作者(Author): 彭伟,舒逸,陈绵琨,刘皓天,肖雄,管文静

DOI: 10.19509/j.cnki.dzkq.tb20220282

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