牛君;黄文辉;梁飞;王文勇;万欢;游声刚;张亚美;

• 1:中国石油大学(北京)克拉玛依校区石油学院

• 2:中国地质大学(北京)能源学院

• 3:中国地质大学(北京)海相储层演化与油气富集机理教育部重点实验室

摘要(Abstract)：

塔里木盆地玉北地区奥陶系碳酸盐岩发育多种形式的岩溶作用,其中埋藏岩溶作用是形成有利储层的重要机制之一。利用岩心观察、岩石薄片鉴定、阴极发光、扫描电镜、测井解释和地化分析等方法,分析研究区埋藏型岩溶发育特征,预测有利储层分布。结果表明:埋藏型岩溶主要发育层位为蓬莱坝组及东部断裂带的鹰山组;发育特征表现为高角度裂缝发育导致的溶蚀作用、沿缝合线发育导致的溶蚀作用、沿晚期裂缝发育的"串珠状"溶孔及与断裂作用相关的油气或沥青充注等,成岩介质流体为多种流体组合。受海西运动影响,蓬莱坝组地层深部断层发育;海西运动晚期,成岩介质流体沿深部断裂向上运移,使下部岩溶相对上部岩溶更为发育,并具有顺层溶蚀特点。断层的发育对埋藏型岩溶具有良好的控制作用,低角度裂缝对埋藏流体的侧向运移具有良好的疏导作用。海西运动晚期发育的断裂带为研究区主要岩溶作用区及优质储层分布区。

关键词(KeyWords)：碳酸盐岩;埋藏岩溶作用;断裂活动;蓬莱坝组;奥陶系;玉北地区;塔里木盆地

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05009-002-203);; 中国石化西北油田分公司勘探开发研究院协作项目(KY2011-S-070);; 中国石油大学(北京)克拉玛依校区科研启动基金项目(RCYJ2017B-01-002)

作者(Author):牛君;黄文辉;梁飞;王文勇;万欢;游声刚;张亚美;

Email:

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