世界油气勘探与生产的资料表明,石油天然气储量和产量的50%来自碳酸盐岩地层,而碳酸盐岩地层中油气量的80%又是由层状白云岩中产出的。因此,层状白云岩是世界上碳酸盐岩地层中最主要的油气储渗体,同时也是许多有色金属硫化物矿产及某些非金属矿产的有效储层之一。然而,与国外相比,我国的气油储量比大致为1:9(国外大致为1:1),而碳酸盐岩地层中的天然气剩 Data from the world’s oil and gas exploration and production suggest that 50% of oil and gas reserves and production come from carbonate formations, whereas 80% of the oil and gas in carbonate formations are again produced from layered dolomites. Therefore, layered dolomite is the most important carbonate reservoir in the world. It is also one of the effective reservoirs for many non-ferrous sulphide minerals and some non-metallic minerals. However, compared with foreign countries, China’s oil-gas reserves ratio is roughly 1: 9 (roughly 1: 1 in foreign countries), while the remaining natural gas in carbonate formations