The secondary pores and fractures constitute the major storage space and percolation path in muddy gravels in Kulongshan oilfield, Jiuquan Basin.

• 摘要酒泉盆地青西油田泥砾岩储层中发育的次生孔隙和裂缝系统构成了油藏主要储集空间和渗流通道。