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. 扇三角洲前緣水下分流河道形成的碎屑巖體是扇三角洲沉積的主體部分，成為主要的油氣儲集體。
All the distributary channel sand bodies on a single graph were superposed, and the reservoir frame sand thickness was evaluated with the superposed graph. 通過(guò)對疊加圖中各水下分流河道砂體疊加情況的分析，確定了優(yōu)勢儲層分布區域。
