中国大中型气田运聚气能力配置类型及其特征

Configuration and characteristics of gas migration and accumulation in large and medium size gas fields in China

利用气藏输导天然气能力与封气能力特征,对气藏运聚气能力配置类型及与储量丰度关系进行了研究,研究表明强运强聚配置类型最好,其次是较强运强聚配置类型和强运较强聚配置类型,再次是中运强聚、较强运较强聚和强运中聚配置类型,其他配置类型均较差。中国42个大中型气田运聚气能力配置类型有4种,以差运聚气能力配置类型的大中型气田为主,中等运聚气能力配置类型的大中型气田较少。但中等运聚气能力配置类型是中国形成高储量丰度大中型气田的主要运聚气能力的配置类型。

The relationship between the configuration of gas migration and accumulation and the reserves abundance of gas reservoirs has been studied based on the capacity of gas transport and sealing in gas reservoirs.The study indicates that intensive migration-accumulation is the best configuration,followed in turn by less intensive migration and intensive accumulation,intensive migration and less intensive accumulation,then moderate migration and intensive accumulation,less intensive migration-accumulation,and intensive migration and moderate accumulation.The other types of configurations are even poorer.The configurations of gas migration and accumulation among the 42 large and medium size gas fields in China include four types,with poor migration-accumulation capacity being seen in most of the large and medium size gas fields,and moderate migration-accumulation found in a few gas fields.However,the configuration of moderate migration-accumulation capability is the major type of large and medium size gas fields with high reserves abundance in China.