松南气田火山岩气藏特征

松南气田火山岩储层储集规模大,储层物性受岩相、喷发方式及火山口距离控制,不同火山机构的火山岩储层厚度和物性都存在差异。总体上松南气田为中低渗透储层,储层非均质性强,储层流动单元及气水关系比较复杂;在火山机构的不同部位布井时,具有不同的流动特征,火山岩气藏除了在纵向上具有分层流动特征之外,在横向上还有分区流动的特征。我们认为松南气田是多断块（鼻）、多火山机构、多旋回期次、复式层状气藏。

Volcanic Gas Reservoir Characteristics of Songnan Gas Field

Volcanic reservoirs with large scale reservoir properties is affected by facies,volcano eruptions manner and distance control in the Songnan gas field,there are differences in volcanic rock reservoir thickness and properties in different volcanic apparatus.Overall reservoir is the mid-low permeability reservoir,reservoir heterogeneity is stronger,and reservoir flow units and air-water relationships are more complex.The deployed wells have different flow characteristics in different parts of the volcanic apparatus,volcanic gas reservoir have different flow characteristics in the horizontal in different blocks,in addition to in the vertical in different layers.We believe that the Songnan gas field is multi-block（nose）,multiple volcanic apparatus,multi-cycle times,double-layered gas reservoir.