塔里木板块巴楚隆起区寒武系盐下勘探潜力分析EXPLORATION POTENTIAL OF THE SALT-CAPPED CAMBRIAN STRATA IN THE BACHU HIGH,TARIM BLOCK,NW CHINA
蔡习尧,李越,钱一雄,李启剑,张园园
摘要(Abstract):
巴楚隆起区主体部位的寒武系多为典型浅水局限台地蒸发相、潟湖相沉积,因此不存在与柯坪地块露头区玉尔吐斯组类似的黑色优质烃源岩,仅为含石膏泥质白云岩或白云质泥岩型烃源岩。生烃和排烃过程发生于加里东晚期—海西晚期,储层以微晶白云岩为主,残余颗粒白云岩次之。理想勘探区块位于潟湖边缘斜坡带及后期构造作用较强的断裂带,下部烃源岩与下—中寒武统盐岩—石膏层构成良好的储—盖组合,具备油气成藏基本条件。以巴什托—先巴扎构造带与康塔库木构造带、古董山构造带—卡拉沙依构造带北段间夹区块、和田1井构造带最具优势勘探潜力。
关键词(KeyWords): 盐下;勘探潜力;寒武系;巴楚隆起;塔里木板块;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和KZCX2-YW-122)资助
作者(Author): 蔡习尧,李越,钱一雄,李启剑,张园园
DOI: 10.19839/j.cnki.dcxzz.2010.03.006
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