The Zao 0 reservoir group in the Kongyi segment of the Duanliubo Oilfield, Huanghua Depression, composes of anastomosing river sediment.

• 黄骅坳陷段六拨油田孔一段枣0油层组为网状河沉积,其沉积特征与曲流河和辫状河有明显区别。