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大港油田港东开发区属于复杂断块油藏,主要目的层为上第三系明化镇组和馆陶组,明化镇组为主产气层,气藏埋藏浅,砂层胶结疏松,纵向上油气分异性差,油气藏高度小,油气层间互,缺少统一的油气界面,大都以单层砂体自成油水、气水系统。进行气藏特征研究和建立气层的识别方法对搞清港东油田浅层气资源潜力以及为下一步对浅层气综合开发利用是十分必要的。
Port-East Development Zone of Dagang Oilfield belongs to complex fault-block oil reservoirs. The main target reservoirs are Minghuazhen Formation, Guantao Formation and Minghuazhen Formation in the Upper Tertiary. The gas reservoirs are mainly composed of shallow burial gas, loose sand, Longitudinal oil and gas differentiation is poor, the reservoir height is small, the mutual interaction between oil and gas layers, the lack of a unified interface of oil and gas, most of the single-layer sand body into oil and gas, water and gas systems. It is necessary to study the characteristics of gas reservoirs and establish the identification method of gas reservoirs to clarify the potential of shallow gas resources in Hong Kong East Oilfield and to comprehensively develop and utilize shallow gas in the next step.