摘要
本文提出了一个全隐式三维三相裂缝黑油模型。它采用一种新的裂缝岩块间窜流量计算方法。并用不规则多边形差分网格,在有生产井的网格上又迭套环形网格,这样能在整体模型中包括锥进计算。它运用了全隐求解方法,及先进的正交最小化方法求解大型不对称变带宽矩阵方程。用该模型计算了雁翎油田注氮气提高采收率的指标,效果良好。
In this Paper,a full--implicite three-dimensional three-phase black oil model for naturally fractured reservoirs is presented. A new method is used in this. model to take the flow between the fracture and the matrix into account, and a irregular polygon grid system is used. A cylindrical grid system is su- perposed on the original grid points where a producing well is located, thus coning calculation can be included in the whole reservoir simulation. This model is a full implicite model and use the advanced orthomin me thod to- solve the huge matrix equation with changed band width. This model is used successfully to simulate the performance of enhanced oil recovery by nitrogen injection in Yanling oilfield.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1992年第1期61-68,共8页
Acta Petrolei Sinica
