The non - structural gas reservoirs in ordos basin can be divided into 4 types , such as a reservoir of lithologic trap of sandstone lens , lithologic trap of differential diagenesis , overlying lithologic - formation trap and the reservoir related with weathering and uncomformity surface 摘要鄂爾多斯盆地非構(gòu)造氣藏可分為4類(lèi):砂巖透鏡體巖性圈閉、差異成巖作用形成的巖性圈閉、上傾巖性地層圈閉、與風(fēng)化殼和不整合面有關(guān)的巖性地層圈閉氣藏。