大面积致密砂岩的存在、砂岩的低渗透性以及充足的天然气供应都是形成深盆气藏的有利条件。
The existence of vast area of tight sand rock, low permeability of sand rock and plenteous gas supply are all favorable conditions for the formation of deep basin gas traps.
沿徐西断裂发育的爆发相火山岩和巨厚烃源岩构成良好的生储盖组合，为天然气以较大规模成藏创造了有利条件。
The volcanic reservoirs and source rocks developed along the discordogenie faults form excellent source-reservoir-caprock combinations, favorable for the formation of large gas fields.
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