米登油田西山窑特殊类型气藏地质特征研究

The geologic characteristic researchment of XiShanYao particular gas reservoir in MiDeng oilfield

西山窑气藏为低孔低渗、岩性-构造复合类型砂岩气藏,具有气水倒置、地层压力异常等特殊的地质特征。进行综合研究认为,该类气藏的气水关系不仅受到构造的影响,而且又受到砂体尖灭和储层物性变化的影响,从而形成了流体系统较为复杂的特殊类型气藏。

XiShanYao gas reservoir is a typically lithostructural compound type gas reservoir with low porosity, low permeability, gas/water inversion and abnormal fomation pressure, comprehensive study think Its gas/water relationships are influenced by the structure,sand body piching and physical property changing. So It is a relatively complex particular gas reservoir.