【摘要】 英南2气藏天然气以烃类气体为主,重烃含量较高,属湿气;非烃组分中N2含量高,CO2含量甚微;碳同位素特征表明它是高-过成熟的腐泥型气,气藏流体包裹体均一化温度为90~110℃,成藏时间为喜山期,天然气成藏模式为“古生新储”型。更多还原

【Abstract】 Natural gas in Yingnan Gas Reservoir 2 is mainly composed of hydrocarbon gas, it belongs to wet gas with high hydrocarbon content. N₂ content is high in non-hydrocarbon compositions, where CO₂ content is less. Isotopic characteristics show it is a high over- mature sapropelic gas, the normalized temperature of gas reservoir fluid inclusion is 90¹10℃, reservoir formation is at Xishan period, reservoir forming mode of natural gas is a mode of “Palaeozoic new reservoir”.更多还原