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近年来的研究工作表明 ,流体不仅存在于地球表层及上地壳 ,而且也大量存在于地球深部(下地壳及地幔 ) ,其成分以 H2 O和 CO2 为主。由于特定的温度和压力条件 ,流体均呈超临界状态存在 ,它们是能量与物质的运移载体。由于其独特的性质 ,因而它们不仅参与了深部油气的无机生成 ,而且也对油气的富集及向上运移成藏起了重要作用。
In recent years, research shows that the fluid exists not only in the Earth’s surface and the upper crust, but also in the deep parts of the earth (the lower crust and the mantle). Its composition is dominated by H 2 O and CO 2. Due to the specific temperature and pressure conditions, the fluid exists in the supercritical state, they are energy and material carrier. Because of their unique properties, they not only participate in the inorganic formation of deep oil and gas, but also play an important role in the enrichment and uplift of hydrocarbon accumulation.