Abstract: Presently,most of oilfields in China underwent their decline periods,and the industrialization of EOR such as polymer flooding or ASP flooding becomes more and more important.An important problem—optimally scheduling the developments of reservoirs is investigated in this paper.First,a simple method of forecasting EOR production is described,then 2 optimal decision model is developed applying the theory of the network flow which aims at either minimizing the total cost or maximizing the total production.This model can help technicians decided the development sequences of several reservoirs in EOR with different targets.

Key words: EOR, development scheduling, dynamic decision model, production forecasting, network flow

摘要： 随着我国大部分油田进入产量递减期,三次采油(聚合物驱、三元复合驱)技术的大规模工业化推广工作日渐重要.由于存在“分区块开发”、“层位上返”、“产量接替”现象,而各个区块、层位的地层条件、开发现状和产能现状不相同,投资和成本参数也不相同,所以不同的投产顺序其整体的效益不同.在工业化大规模推广时,规划人员和决策层面对的一个问题就是:如何优化决策各个区块的上产顺序,实现产能最优接替.针对以上问题,作者提出了一种简便预测三次采油指标的方法,研究了三次采油工业化过程中多区块产能接替的最优顺序问题,应用网络流规划方法建立了“成本最小”和“产量最大”二类动态优化模型,并进行了实例计算.本模型可以辅助规划人员及领导层对多区块的最优开发顺序进行决策.

关键词: 三次采油, 开发顺序, 动态决策模型, 指标预测, 网络流