注水井调剖注入压力预测方法

Method for Injection Pressure Prediction for Profile Control in Water Injection Wells

合理的注入压力可减少对非目的层的污染,提高调剖措施的有效率。针对目前调剖措施注入压力预测方法存在的问题,优化措施工艺参数,从注水井注入系统压力平衡角度出发,以排量设定法为基础,提出了一种预测调剖施工爬坡压力的方法。应用实例效果分析表明,该方法可简便快捷地预测注入压力,优化工艺参数。

Pollution in non-target zones can be reduced, the efficiency of profile control can be improved by using rational injection pressure. In consideration of the problems of injection pressure prediction for a profile control at present time, based on displacement setting, a method is proposed for predicting grading pressure in profile control from the aspect of pressure balance in an injection system of water injection wells. Analysis of example application effect shows that the method can be used for an easy and simple prediction of injection pressure for parameter optimization.