碳酸盐岩油气田在世界油气分布中占有重要地位。据我们对世界近200个大油田统计,碳酸盐岩大油田平均可采储量为5.6亿吨,碎屑岩大油田为2.9亿吨,已发现的万吨井皆属碳酸岩产层。我国有近300万平方公里的碳酸盐岩沉积区。北方震旦亚代,早古生代的碳酸盐岩 Carbonate oil and gas fields occupy an important place in the world oil and gas distribution. According to our statistics on nearly 200 large oil fields in the world, the average recoverable reserves of large carbonate oilfields are 560 million tons and that of clastic large oil fields is 290 million tons. The 10,000 tons of wells that have been discovered are all carbonate production layers. China has nearly 3 million square kilometers of carbonate deposition area. Sinian Asia in the north, early Paleozoic carbonates