赵锐;赵腾;李慧莉;焦存礼;高晓鹏;赵学琴;

• 1:中国石化石油勘探开发研究院

• 2:中国石油大学(北京)地球科学学院

摘要(Abstract)：

塔里木盆地中下奥陶统地层主要由碳酸盐旋回组成。分析顺托果勒地区钻井资料和沉积相,识别研究区沉积相类型;根据藻屑颗粒结构比例,划分沉积旋回;根据垂向岩相、旋回叠置样式和可容纳空间变化,识别研究区旋回层序。结果表明:研究区识别两种主要的沉积相类型,分别是半局限潮下带和开阔潮下带,在顺北和顺南地区进一步分别划分为7种(LF1～LF7)和10种(L1～L10)岩石微相;识别两种类型的旋回,分别是半局限浅水—中潮下旋回和开阔中—深水旋回,第一种旋回发育于鹰山组上段和一间房组下段地层,第二种旋回主要发育于一间房组上段地层;识别8个三级层序(Sq4—Sq11),由下部海进域和上部高位域组成,可以进一步划分为下部稳定/海侵段和上部海侵段两段。该结果对研究塔里木盆地顺托果勒地区沉积演化过程具有指导意义。

关键词(KeyWords)：沉积相;旋回地层;层序;海平面变化;地层对比;中下奥陶统;塔里木盆地

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2017ZX05005-002)

作者(Author):赵锐;赵腾;李慧莉;焦存礼;高晓鹏;赵学琴;

Email:

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