Faults and tectonic uplift in the late stage of Himalayan orogeny are the main factors on gas dissipating and the secondary oil and gas pool forming above salt layer in Eogene.
喜马拉雅晚期产生的断层和构造抬升作用，是该区天然气散失和盐上次生油气藏形成的主要因素。
During the formation of the primary condensate gas pool there is no phase change in the pool. But the secondary gas condensate pool was formed by solution of light oil in gas in the pool.
次生凝析气藏是圈闭中轻质油溶解于天然气中形成的凝析气藏，成藏过程中流体相态发生了变化。
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