延长气田S井区天然气分布控制因素及产能评价

Control Factors and productivity evaluation of natural gas distribution in S block of Yanchang gas field

研究区上古生界自下而上为一套海相-海陆过渡相和河流-三角洲相沉积,自下而上多层砂岩叠置分布,具有较强的非均质性,横向上大面积连片分布。对该区天然气分布控气因素进行研究及产能评价有助于稳产增产,对下一步开采具有重要指导意义。

The upper Palaeozoic of this research area consists of a set of marine-continental/marine transition facies and riverdeltareservoir sedimentary facies from the bottom to the top,and the bottom-up multi-layer sandstones are superimposed anddistributed with strong heterogeneity.The research on the natural gas distribution and the evaluation of the production capacity arehelpful to the stable production and the increase of production,which is of great significance to the next step exploitation.