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从宏观上对鄂尔多斯盆地中西部地区三叠系延长组长2油层组碎屑岩次生孔隙发育区的高岭石含量与次生孔隙之间的关系进行了系统研究,确定高岭石含量对于次生孔隙的分布具有指示作用。高岭石含量高的地方次生孔隙也相对发育,尽管影响高岭石含量因素复杂,但该地区高岭石的含量主要受作用在古地貌上的大气淡水淋滤的影响,作者进而在古地貌恢复的基础上对次生孔隙的有利区进行了预测。
The relationship between kaolinite content and secondary porosity in secondary pore of clastic rocks of Chang 2 reservoir of Triassic Yanchang Formation in central and western Ordos Basin was systematically studied to determine the content of kaolinite Secondary pore distribution has an indicator effect. Although the secondary pores with relatively high content of kaolinite are also relatively developed, the content of kaolinite in this area is mainly affected by the leaching of atmospheric freshwater on the paleogeomorphology despite the complicated factors affecting the content of kaolinite. On the basis of landform restoration, favorable zones of secondary pores were predicted.