油田开发二层多目标措施结构优化模型及算法

本文讨论了油田开发规划的措施结构优化问题。基于二层多目标规划原理,将油田企业视为一个二层系统(上层是油田公司,下层是各个采油厂,并且两个层面相对独立),以总措施产量最大、总效益最好为目标建立了油田开发规划的二层多目标措施结构优化模型,并给出了适用于该模型的改进的Pareto多目标遗传算法的算法设计和实现步骤。该优化模型成功地解决了油田公司措施产量分配问题以及采油厂各分项措施产量对应的各项工作量、其它开发指标的最优构成问题。

THE BI-LEVEL MULTIPLE OBJECTIVE MEASURE STRUCTURE OPTIMIZATION MODEL IN OILFIELD DEVELOPMENT AND ITS ALGORITHM

This paper discusses the problem of measure structure optimization in oilfield development planning.On the basis of bi-level multi-objective planning principle,the oilfield enterprise is regarded as a bi-level system(The upper level is the oilfield company,the lower one is each production plant,and they are independent comparatively.).Taking the maximum measure output and best benefit as the objectives,the bi-level multi-objective model is established for measure structure optimization in oilfield development planning.It also gives out the algorithm design and implement steps of the improved Pareto multiple-objective genetic algorithm which is suitable for it.The optimization model has solved the problems of company measure output assignment,workload of each sub-measure output in a production plant and optimized constitution of other development indices successfully.