中文摘要：

储层微观孔隙结构是影响油气富集与油气田开发效果的内在因素.为探讨深层砂岩油藏储层孔喉参数特征及分布规律,应用铸体图像分析技术、高压压汞技术对渤海湾盆地东濮凹陷濮城油田沙河街组深层砂岩油藏储层孔喉特征参数进行了研究.铸体图像分析技术研究表明,储层物性与孔隙半径、喉道宽度呈正相关关系;面孔率参数与孔隙度、渗透率相关性较好,面孔率较相应的孔隙度参数小;比表面、形状因子与其储层物性参数不相关,储层孔隙、喉道形状无规律;由特低渗至高渗储层,孔喉比参数无明显变化趋势,孔喉配位数呈增大趋势,孔喉均质系数、分选系数、变异系数规律性不强.高压压汞资料分析研究表明,储层最大喉道半径、平均喉道半径、主流喉道半径、主流喉道半径下限值、最小可流动喉道半径等均与储层岩石的渗透率参数呈正相关关系;平均水力半径与平均喉道半径呈正相关关系;储层岩石比表面与渗透率参数呈负相关关系.基于高压压汞资料,建立了渤海湾盆地东濮凹陷濮城油田沙河街组深层砂岩油藏储层孔喉参数预测模型.

英文摘要：

The micro pore structure of reservoir is the intrinsic factor that affects the oil gas accumulation and the effect of oil and gas development. In order to study the characteristics and distribution of reservoir pore throat parameters in deep sandstone reservoir, the feature parameters of pore throat in deep section sandstone reservoir of Pucheng oilfield were analyzed with the technology casting image and the high pressure mercury penetration in Dongpu sag, Bahai Bay Basin. The research of casting image shows that the reservoir quality gets higher with the increase of Pore radius and Throat width. The relation between the surface porosity and the reservoir quality is good, and the surface porosity is lower the porosity. The relation between the specific surface area, shape factor and the reservoir quality is poor. The shape of pore and throat is no rule. From the ultra low permeability to high permeability reservoir, the variation of the pore-to-throat ratio is not obvious, and the variation of the coordination number is enlarged, and the regularity of the uniformity coefficient, separation factor and variation coefficient is no strong. The research of the high- pressure mercury injection method shows that the relation between the maximum throat radius, the average throat radius, the mainstream throat radius, the mainstream pore-throat radius, the minimum flow throat radius and the permeability is positive correlation. The relation between the mean hydraulic radius and the average throat radius is positive correlation. The relation between the rock specific surface and the permeability is negative correlation. Based on the high-pressure mercury, the prediction model of pore throat parameters of Deep Section sandstone reservoir were established in Shahejie formation in Pucheng oil feld, Dongpu Sag, Bohai Bay Basin.