The types of sandstone reservoirs are arkose and lithic arkose.The main diagenesis includes the compaction, cementation of authigenic minerals and dissolution.

• 储集层砂岩类型为长石砂岩和岩屑长石砂岩，成岩作用主要有机械压实、自生矿物的胶结作用和溶蚀作用。