摘要
平湖油气田是在我国东海发现的第一个以天然气为主的复合型油气田,其油气层主要分布于平湖组和花港组.纵向上油气藏分带特征明显,自下而上可分为正常原油带、含油凝析气带和轻质原油带;平面上不同区块的油气分布组合特征也存在较大差异.分析发现,这种复杂的油气分布特征主要受控于盖层质量、构造(尤其是断层)分布以及不同期次油气充注所引起的蒸发分馏作用.
Pinghu oil_gas field is the first gas_dominated complex field discovered in East China Sea, and its main reservoirs are in Pinghu Formation and Huagang Formation. Vertically, the hydrocarbon distribution has three obvious zones, and from the lowest upwards, they are normal oil zone, oil_bearing condensate gas zone and light oil zone. Areally, different blocks are also quite different in hydrocarbon distribution. The analyses have indicated that the complicated hydrocarbon distribution is mostly controlled by seal quality, structure development (especially faults) and hydrocarbon evaporation-fractionation during various charge periods.
出处
《中国海上油气（地质）》
2003年第3期164-169,共6页
China Offshore Oil and Gas(Geology)
