张福顺;瞿长;

• 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)：

塔河油田石炭系卡拉沙依组地层埋深大,砂体厚度薄,横向变化快。基于岩心观察、野外露头、薄片鉴定、测井和录井资料等,分析研究区砂体的成因及叠置样式;采用野外砂体构型及密井网区精细砂体解剖的方法,识别受潮汐影响的缓坡三角洲沉积模式。结果表明:研究区卡拉沙依组成因砂体主要包括水上分流河道、水下分流河道、潮汐改造分流河道、砂坪和砂泥混合坪5种类型,其中水上分流河道和水下分流河道砂体物性相对较好,是有利砂体;有利砂体叠置样式包括冲刷式、互层式和夹层式等垂向叠置样式,以及连片式、斜切式、对接式和孤立式等侧向展布样式。研究区北部靠近物源方向,为有利砂体分布区。

关键词(KeyWords)：塔河油田;缓坡三角洲;石炭系;卡拉沙依组;成因砂体;砂体构型;叠置样式

Abstract:

Keywords:

基金项目(Foundation):中国石油化工股份有限公司科技部项目(P18059-2)

作者(Author):张福顺;瞿长;

Email:

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