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| 天然气运聚相态及其研究意义 | |
| 引用本文： | 付广,庞雄奇,杨勉,薛永超. 天然气运聚相态及其研究意义[J]. 中国海上油气, 2000, 0(2) |
| 作者姓名： | 付广 庞雄奇 杨勉 薛永超 |
| 作者单位： | 大庆石油学院!黑龙江大庆151400(付广，杨勉，薛永超)，石油大学!北京100083(庞雄奇) |
| 摘 要： | 天然气聚集相态是影响其成藏的重要因素。不同类型的源岩在不同的成烃阶段具有不同的排气相态。天然气二次运移相态除了受其源岩排气相态的影响外 ,还受运移途中温度压力及介质条件的影响。不同相态天然气运聚受不同势场控制 :水溶相天然气在水势场中受水动力的作用 ,油溶相在油势场中受油的浮力和水动力作用 ,游离相在气势场中受气的浮力和水动力作用。因此 ,所形成气藏的分布规律存在差异性。对于不同相态成因的气藏的勘探应采用不同方法。 |
| 关 键 词： | 天然气 相态 运移和聚集 成藏 模式 分布规律 |
PHASES OF GAS IN MIGRATION AND ACCUMULATION AND THEIR SIGNIFICANCES |
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| Fu Guang. PHASES OF GAS IN MIGRATION AND ACCUMULATION AND THEIR SIGNIFICANCES[J]. China Offshore Oil and Gas, 2000, 0(2) | |
| Authors: | Fu Guang |
| Abstract: | Phases of gas in migration and accumulation are an important factor to influence gas trapping.Source rocks of different types can expel gas in different phases at different maturity stages.Besides the source expelled phases,gas in secondary migration is also influenced by temperature,pressure and medium in migration path.The migration and accumulation of gas in different phases are controlled by different potential fields:in water potential field,gas in water phase is drived by hydrodynamics;in oil potential field,gas in oil phase is drived by both oil buoyancy and hydrodynamics;and in gas potential field,gas in free phase is drived by both gas buoyancy and hydrodynamics.Therefore,reservoirs formed by different phase gas are different in distribution pattern,for which different exploration methods should be used. |
| Keywords: | gas phase migration and accumulation gas trapping model distribution pattern |
| 本文献已被 CNKI 等数据库收录！ | |