Matrix porosity and permeability are low in the Ordovician carbonate reservoirs of Lunnan buried hill,but the reservoir conditions are improved by the growing of dissolved pores.

• 轮南奥陶系潜山碳酸盐岩储层基质孔隙度和渗透率很低,但溶蚀孔洞的发育改善了其储集条件。