【摘要】 利用地震资料具有横向分辨率高的优点,将地震资料与录井资料和测井资料相结合,用地震相分析、地震振幅属性分析、相干分析和可视化等手段对牙哈地区新近系的河道展布进行了刻画,确定了河道、河漫滩、决口扇和曲流砂坝等沉积相类型的平面展布.在新近系共识别出7期大型河道,总面积为619 km2,可形成有利勘探面积75 km2,为牙哈地区新近系下一步勘探提供了依据.更多还原

【Abstract】 Taking the advantage of high horizontal resolution,the seismic data are used,with logging data,to describe the distribution of river channels by researches of seismic facies,amplitude attributes,coherence cube and visualization techniques.The distribution of river channel,flood land,flood plains,crevasse fan,point bar deposit and other sedimentary facies are analyzed.There developed 7 periods of large river channels in Neogene,with total area of 619 square kilometers.Of those river channels,75 square kilometers are favorable prospecting area.更多还原