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本世纪末,下世纪初,将是天然气工业成熟新技术的推广应用阶段。在找气理论方面,出现了水中找气的理论,一破传统上的气水关系,提出了在致密地层中,由于相对渗透率的差异、水气倒置,形成水封闭气藏。据此理论,加拿大阿尔伯达盆地,发现了埃尔姆斯世界级的大气田,探明天然气的可采储量5600×10~8m~3;四川盆地川南
The end of this century, the early next century, will be the natural gas industry to mature and promote the application of new technologies. In looking for the theory of gas, there is a theory of looking for gas in water. After breaking the traditional relationship between gas and water, we propose that in dense stratum, due to the difference of relative permeability, water vapor is inverted to form a water-sealed gas reservoir. According to this theory, Alberta’s world-class large-scale gas field was discovered in the Alberta Basin in Canada. The proven recoverable reserves of natural gas are 5600 × 10 ~ 8m ~ 3.