中国石油大学学报（自然科学版）2016，Vol.40Issue(2)：99-104,6.DOI:10.3969/j.issn.1673-5005.2016.02.012
一油藏开发生产优化近似扰动梯度升级算法
Reservoir production optimization using an upgraded perturbation gradient approximation algorithm
摘要
Abstract
Reservoir production optimization is a high-dimensional optimal control problem, and it is very difficult to obtain a true gradient. In this paper, a general perturbation gradient approximation method was presented, and the gradient resolved was always in uphill direction. The commonly used SPSA and EnOpt algorithms, being derivative-free, can be considered as special cases of the general perturbation gradient approximation. The perturbation gradient approximation can be upgraded by introducing an optimized lower triangular matrix for approaching to the true gradient. The numerical simulation results show that, compared with the standard SPSA algorithm, the optimization efficiency of the upgraded algorithm can be increased nearly 100%. In a real case study, the reservoir production optimization was conducted using the new method on the basis of history matching. The field data have shown remarkable increase on oil production and decrease of water production, and the sweeping efficiency of water flooding is significantly improved, which validates the feasibility of the algorithm for practical ap-plications.关键词
油藏/生产优化/近似梯度/无梯度算法/SPSA算法/EnOpt算法Key words
reservoir/production optimization/approximate gradient/derivative-free algorithm/SPSA algorithm/EnOpt al-gorithm分类
能源科技引用本文复制引用
赵辉,唐乙玮,康志江,张贤松,尚根华..一油藏开发生产优化近似扰动梯度升级算法[J].中国石油大学学报（自然科学版）,2016,40(2):99-104,6.基金项目
国家科技重大专项(2016ZX05014003) （2016ZX05014003）
国家自然科学基金项目(51344003) （51344003）
