吉林大学学报(地球科学版) ›› 2017, Vol. 47 ›› Issue (1): 48-60.doi: 10.13278/j.cnki.jjuese.201701105
张建坤, 杨国涛, 吴吉忠, 吴鑫, 王方鲁
Zhang Jiankun, Yang Guotao, Wu Jizhong, Wu Xin, Wang Fanglu
摘要: 综合运用钻井岩心、测井、三维高分辨率地震等资料,对渤海湾盆地黄骅坳陷北部马头营凸起馆陶组砂体成因及展布特征进行了系统的研究。结果表明:馆陶组沉积前期发育2条规模大、延伸较远,呈近NS、NNWSSE展布的沟槽,指示物源主要来源于北部燕山褶皱带。馆陶组为冲积扇-辫状河-曲流河沉积序列;馆三下段为冲积扇扇中辫状河道和河道间漫流相,发育扇中辫状河道成因砂体;馆三上段为辫状河道和泛滥平原相,发育河床滞留沉积和心滩成因砂体;馆二段和馆一段为曲流河沉积,河床滞留沉积、边滩、决口扇和天然堤是主要的砂体成因类型。馆陶组可划分为3个长期旋回,7个中期旋回,16~19个短期旋回;以短期旋回为单元,建立了馆二段等时地层对比的高分辨层序地层格架;层序格架控制着砂体的分布模式,馆二段短期旋回的下部砂岩发育,是主要的储集层。层控测井约束反演提高了馆二段薄互层河道砂体预测的精度,馆二段各砂层组反演预测平面砂地比反映河道砂体呈NE-SW向的展布特征。
中图分类号:
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