鄂尔多斯盆地延长组长73亚段泥页岩层系岩石类型特征及勘探意义

刘显阳,李士祥,郭芪恒,周新平,刘江艳

Characteristics of rock types and exploration significance of the shale strata in the Chang 73 sub-member of Yanchang Formation， Ordos Basin

Xianyang LIU,Shixiang LI,Qiheng GUO,Xinping ZHOU,Jiangyan LIU

图2 鄂尔多斯盆地CY1导眼井长73亚段沉积特征柱状图（修改自文献[17]）

Fig.2 Well column of Chang 73 sub-member in pilot well of Well CY 1 with sedimentary characteristics in the Ordos Basin(revised from Ref.[17])