The non-structural gas reservoirs in Ordos Basin can be divided into 4 types, such as a reservoir of lithologic trap of 摘要鄂尔多斯盆地非构造气藏可分为4类：砂岩透镜体岩性圈闭、差异成岩作用形成的岩性圈闭、上倾岩性－地层圈闭、与风化壳和不整合面有关的岩性－地层圈闭气藏。