The subaqueous distributary channel clastic rock bodies in the fan delta front formed the main part of the fan delta and the most important oil and gas reservoirs. 扇三角洲前缘水下分流河道形成的碎屑岩体是扇三角洲沉积的主体部分，成为主要的油气储集体。
All the distributary channel sand bodies on a single graph were superposed, and the reservoir frame sand thickness was evaluated with the superposed graph. 通过对叠加图中各水下分流河道砂体叠加情况的分析，确定了优势储层分布区域。
