随机油价下的油田开发规划优化模型

为了科学合理地制定油田开发规划方案，建立了随机油价下的油田开发规划优化模型。首先利用功能模拟原理（微分模拟方法及神经网络方法）建立油田采油厂产量与其对应影响因素的关联关系，然后在随机油价下，根据油田开发的实际情况，在对决策变量、目标函数、约束条件进行分析的基础上，研究每个采油厂或开发单元的具体情况并建立定产量、定成本、效益最好的产能分配优化模型，并采用改进内点法对优化模型进行求解。采用这一优化过程，成功地解决了油田开发规划中随机油价下的油田（采油厂）产量、工作量及成本的最优分配问题。将该模型应用干中国某油田中后期开发阶段产量规划中，产生了巨大的经济效益。表3参12

Optimal model of oilfield development programming under stochastic oil price

To make the development programming of an oilfield scientifical and rational, an optimal model of oilfield development programming under stochastic oil prices is generated. The correlative relations between the oil output of oil companies of an oilfield and the factors which affect oil production are built up using functional simulation theories, such as the differential simulation method and NN method; based on the stochastic oil prices, the actual status of oilfield development, and the analysis of decision variables, object function and constraints, the actual situations of every oil company or development unit are studied and the optimal production assignment model with maximum economic benefit (stated oil output and stated cost) is generated, and the solution of the model is gained by improving interior point method. The optimal assignment of output, workload and cost of an oilfield under stochastic oil prices in oil development programming is solved in the process of the optimization. A huge economic benefit was gained in the actual application of the model.