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世界上天然气可采储量达0.1×10~(12)m~3的碳酸盐岩气田共17个,总可采储量约6×10~(12)m~3,其中10个(约占气田数量的59%)与“蒸发岩系”有关,储量为5×10~(12)m~3,占总储量的83.3%;其中的5个特大型碳酸盐岩气田都与“蒸发岩系”有关。在油气田(特别是超大型油气田),常发现膏盐层可达几百米,乃至上千米,如加拿大阿尔伯达盆地“蒸发岩”最大厚度达2000m。如此巨厚的膏盐层很难用蒸发成因来解释。有人曾计算过,1000m 厚的海水层,完全蒸发能
There are 17 carbonate gas fields with natural recoverable reserves of 0.1 × 10 ~ (12) m ~ 3 in the world, and the total recoverable reserves are about 6 × 10 ~ (12) m ~ 3, of which 10 59% of the total amount) is related to “evaporite series”, with a reserve of 5 × 10-12 m 3, accounting for 83.3% of the total reserves. Five of the large carbonate gas fields are related to “evaporite series ”related. In oil and gas fields (especially in very large oil and gas fields), it is often found that the gypsum salt layer can reach several hundred meters or even thousands of meters. For example, the maximum thickness of “evaporite” in the Alberta Basin of Canada reaches 2,000 meters. Such a thick gypsum salt is difficult to explain the origin of evaporation. Someone once calculated that a 1000-m-thick seawater layer completely evaporates