不同油藏类型不同开发阶段储采比变化研究

STUDY OF RESERVEPRODUCTION RATIO OF CHANGES DIFFERENT RESERVOIR TYPES AND DIFFERENT RESERVOIR STAGES

针对目前储采比研究中可采储量不变的不足,引入储量替代率,从储采比定义出发推导出储采比与储量和产量变化的关系;基于我国13个油区44个油田实际开发资料,利用提出的开发阶段的划分方法,得到了稠油、低渗和常规水驱砂岩3种油藏的合理储采比界限值,同时得出一些定量拟合关系,可为同类油藏的开发规划服务,具有一定的理论与实际指导意义。

The reserveproduction ratio is a very important proportion parameter of the petroleum industry and closely related to exploitation situation.Based on the concept of the reserveproduction ratio,we applied the reserve replacement ratio to analyze the change law of reserveproduction ratio with the change of the reserves and productions.On the basis of the practical development dates and static parameters of 44 oil fields in 13 oil areas,3 types were divided of heavy oil reservoir,low permeability reservoir and normal water drive sandstone reservoir.It was concluded that the reasonable reserveproduction ratio,by the divided criterion of development stages in the paper,and the quantitative relationships were obtained,and it served as the development planning of the same reservoir type,and it had a theoretical and practical significativeness for the oil field development.