The main oil/gas reservoir spaces in the wells with stable and high yields in carbonate oilfields are mainly the caverns formed by the karstification and the related fractures and corrosion vugs.

• 由岩溶作用形成的洞穴及其相关的裂缝、溶蚀孔洞是碳酸盐岩油田高产稳产井的主要储油空间,古岩溶作用发育具有较强的非均质性,使得洞穴型储层的分布预测极为困难。