关键词: 注水, 优化, 大系统, 数学模型, 油田

Abstract: This paper presents a mathematical model of the operation optimization problem of large-scale water injection systems which minimize total electric power consumption of the system under the condition that practical water injection systems for every well dynamically and accurately follows the designed one.This operation optimization problem mathematically is a complex nonlinear integer programming with many equality and inequality constraints, and it is difficult to be solved by the conventional method,this paper gives a solution based on decomposition and coordination method of the large-scale system theory and the universal model and the universal solution of the subsystems.The results above are programmed a software package by C language.This method has been proved to effectively save total electric power consumption of water injection systems under the condition that practical water injection systems dynamically and accurately follows the designed one in the practice of oil field application.

Key words: water injection, optimization, large-scale systems, mathematical models