【摘要】 通过总结近年来油气勘探成果,认为珠江口盆地番禺—流花地区具有良好的天然气成藏条件,气源充足,储盖优良,圈闭条件优越,复合输导体系使油气运移顺畅无阻,是天然气勘探的重点区域。进而总结研究区天然气成藏特征,即表现为晚期—超晚期成藏,气藏类型单一,其在纵向上主要集中分布在珠江组下段,在平面上呈NE向条带状分布,明显受油气主运移方向的控制。通过天然气成藏条件与天然气分布关系研究,认为研究区天然气分布主要受构造脊、圈闭与储盖的匹配、封盖及保存条件等共同控制。更多还原

【Abstract】 The achievements of exploration and development in recent years indicate that there exists good condition of natural gas accumulation in the PY-LH zone in Zhujiang River Mouth basin as an important zone for gas exploration,including plenty gas source,fine reservoir-sealing assemblage,good trap conditions and composite transport system.The gas accumulation is summed as follows: later accumulation,single type of gas reservoir.Vertically,natural gas mainly accumulates in the low section of Zhujiang Formation.Laterally,natural gas has a banding distribution along the northeast direction.Based on correlation between forming conditions and distribution of gas reservoirs,natural gas in the PY-LH zone is mainly co-controlled by structure ridge,matching condition between traps and reservoir-cap assemblage,sealing and preservation conditions.更多还原