塔里木轮南油田寒武系坡折带的层序和储层STRATIGRAPHIC SEQUENCES AND RESERVOIRS ALONG THE CAMBRIAN SLOPEBREAK BELT,LUNNAN,NORTHERN TARIM,XINJIANG
张丽娟,吴金才,王招明,王霞,李越,程明,李启剑
摘要(Abstract)：
寒武纪西高东低的海底地貌显著控制着塔里木板块轮南区的岩相差异。轮南寒武系可划分为6个层序,每个层序的地震反射总体上显示较弱,从西到东可划分出3种地震相并分别对应3个沉积带:平行连续地震相指示碳酸盐岩台地、杂乱丘状地震相指示台缘高能带、斜交连续地震相指示斜坡。不同层序在坡折带附近相互叠置,从下到上显示为台地有西向东迁移的趋势,平面上呈南北向展布。坡折带规模大,与轮南隆起巨型台背斜构造配置好,紧邻寒武系油源区,白云岩储层发育,溶蚀孔洞、裂逢、晶间孔综合构成主要储集空间,台地相低能带致密碳酸盐岩可作为盖层,这些因素优化坡折带为油气勘探的最好靶区。
关键词(KeyWords)： 层序地层;储层;坡折带;寒武系;轮南油田;新疆
基金项目(Foundation): 中国科学院创新工程方向性项目(KZCX2-yw-Q05-01,KZCX2-yw-122);; 国家自然科学基金(No.40572069)支持
作者(Author): 张丽娟,吴金才,王招明,王霞,李越,程明,李启剑
DOI: 10.19839/j.cnki.dcxzz.2010.01.002
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