关键词: 油田, 注水, 管网, 建模, 处理, 计算方法, 迭代法

Abstract: An oilfield water flooding pipeline network is a large-scale fluid network system. Conventional model calculation method is time-consuming and has greatly hindered the development of simulation and optimization of an oilfield water flooding system. On the base of analysis,two methods are given in this paper. One is the model simplification technology which reduces identity matrix K dimension considerably, and the other is the improved iteration method which reduces the amount of calculating work from n' to n. A calculating software about a large-scale oilfield pipeling network is created by the use of the two methods. The result indicates that on the premise that the calculating accuracy is met,the model calculating speed is enhanced extremely. The technology has been applied to oilfield flooding system and received high ratings.

Key words: oilfield, water flooding, pipeline network, modelling, disposal, calculation method, iteration