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塔里木盆地凝析气分布广泛,成因复杂,以富、特富凝析气藏为主,具有很高的经济价值。盆地中存在陆相腐殖型气源岩和海相腐泥型气源岩,它们在不同演化阶段生成多种组分、不同温压状态的凝析气,在运移、聚集和成藏过程中,烃体系分异、富化,多期成藏,多个烃体系混合,形成初始型、分(馏)析(出)变异型和富化变异型这3类凝析气藏。
Tarim Basin condensate gas is widely distributed, complex causes, with rich, rich condensate gas reservoirs, with high economic value. There are continental humus-type gas source rocks and marine sapropelic-type gas source rocks in the basin, which generate various components in different evolution stages. Condensate gas under different temperature and pressure conditions has the characteristics of migration, accumulation and accumulation Among them, hydrocarbon systems are distinct, rich and multi-phase hydrocarbon accumulation, and multiple hydrocarbon systems are mixed to form three types of condensate gas reservoirs, initial type, fractional distillation (out) variation type and enrichment variation type.