吉林大学学报(地球科学版) ›› 2020, Vol. 50 ›› Issue (1): 41-51.doi: 10.13278/j.cnki.jjuese.20180289
• 地质与资源 • 上一篇
乔雨朋1, 邱隆伟1, 宋子怡2, 王军3, 宋璠1, 刘卫3
Qiao Yupeng1, Qiu Longwei1, Song Ziyi2, Wang Jun3, Song Fan1, Liu Wei3
摘要: 河流相储层内部隔夹层研究对其储层内部构型表征及剩余油挖潜具有重要指导作用。本文以沾化凹陷孤东油田六区为例,基于岩心、测井资料,对远源砂质辫状河的单井、连井以及平面发育特征进行了分析;基于沉积微相控制和岩心、测井标定,对不同层次的隔夹层进行了识别以及特征描述;基于密井网的约束对心滩内部夹层的规模与产状进行了表征。结果表明:单层间夹层多是物性夹层,单砂体之间夹层包括泥质夹层与泥砾夹层,增生体之间的夹层为落淤层,落淤层宽度为80~400 m,长度为350~1 630 m,落淤层在滩头倾角约为2.03°,在滩尾倾角为1.28°,在两翼倾角为1.58°。利用界面约束方法,对储层内部夹层进行了构型建模,建立了一套能够进一步深度表征辫状河内部非均质性的构型模型。
中图分类号:
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