注水井节点系统分析数学模型及其应用

Mathematical Model and Application of the Nodal System Analysis for Water Injection Well

根据注水实用计算理论,建立注水井节点系统分析数学模型,并以某注水井的实际生产资料为例计算注水井注入量和注入压力。注水井中实测值和计算值基本吻合,利用该模型可绘制注水井的动态曲线,确定目前条件下的注入量与注入压力,并可进行注水系统的参数优选和配注方案编制。

According to the practical computation theory of the water injection,the mathematical model for the nodal system analysis of the water injection wells is established.Based on the mathematical model,the injection volume and injection pressure are calculated and plotted by using the actual production data of a certain water injection well.The results show that the measured data of the water injection well approximately agree with the computed data.Furthermore,the model can be used for drawing the dynamic curves of the water injection well,determining the current injection volume and injection pressure,optimizing the parameters of the injection system and compiling the injection allocation scheme.