吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (6): 1597-1607.doi: 10.13278/j.cnki.jjuese.201506104
单敬福1, 张吉2,3, 王继平2,3, 赵忠军2,3, 李浮萍2,3, 陈治华2,3, 石林辉2,3, 刘利峰2,3
Shan Jingfu1, Zhang Ji2,3, Wang Jiping2,3, Zhao Zhongjun2,3, Li Fuping2,3, Chen Zhihua2,3, Shi Linhui2,3, Liu Lifeng2,3
摘要:
鄂尔多斯盆地苏里格气田西区盒8下亚段主力含气层段相的研究观点较多,不同认识导致各个沉积相域内砂体对比和预测存在着较大的差异,从而给勘探井位部署增加了难度。笔者在前人研究成果基础上,充分利用钻井、测井、岩心、地震、分析化验和野外露头等多种资料和手段,采用岩石学特征分析、岩心沉积构特征观察、古生物化石证据、研究区柳林成家庄野外露头沉积序列揭示、测井相特征和河流相地震特殊反射结构观察等多种研究手段和方法,对该区盒8下亚段的沉积相进行了详细论证、分析和描述。研究结果表明,辫状河沉积是苏里格西区盒8下亚段主要的相类型;干旱与潮湿气候的频繁交替变化,是导致砂体研究区目的层垂向砂体厚度大、非均质性强和砂体横向变化快的主控因素。
中图分类号:
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