摘要
渤海海域油气藏以断块型为主,油气水关系复杂不同层位、不同深度油气藏特征差异明显。对600多个具有独立油水系统的油气藏进行了统计分析,结果表明：已发现油气主要分布在1 000～2 000m深度范围;埋深大于2 000m时地面原油密度小于0.92g/cm^3,埋深大于1 500m时地层原油粘度小于80mPa·s;含油面积、有效厚度、有效孔隙度、含油饱和度及原油体积系数等油气藏储量参数具有较好的统计规律。
In Bohai sea,hydrocarbon pools are dominated by the faulted-block type and have complex relationships among oil,gas and water,and their characteristics are quite various due to their different stratigraphic intervals and depths.A statistical analysis of more than 600 pools with separate oil-water systems indicates that most of the discovered pools occur between 1 000 m and 2 000 m in depth.The surface density of crude oil will be lower than 0.92 g/cm^3 when its buried depth is greater than 2 000 m,and the subsurface viscosity of crude oil will be smaller than 80 mPa·s when its buried depth is greater than 1 500 m.Several pool parameters,such as oilbearing area,net pay thickness,effective porosity,oil saturation and oil volume factor,are statistically regular.
出处
《中国海上油气》
CAS
2008年第1期18-21,共4页
China Offshore Oil and Gas
关键词
渤海
油气藏特征
统计分析
Bohai oilfield
hydrocarbon pool
volume factor
crude density
reserves
