水平井化学堵水剂性能评价

由于水平井作业工艺复杂,找水难度大,准确率低且成本高,机械堵水很难实现,因此找到一种生产合成方便,性能稳定,适应性强.施工工艺简单的化学堵水剂已成为一个迫切的任务.使用水平井开采模拟装置对接枝聚合体系和CS封堵体系两种堵水剂进行动态评价,结果表明两种化学堵水剂对高渗透层内大孔道均有较强的封堵性能,使中低渗透层吸液压差增大,后续水驱时更多地转向进入中低渗透层,扩大了波及体积;接枝聚合体系成胶后强度高,对高渗透层的封堵效果好,降低了含水率,提高了采收率.

The Performance Evaluation of the Horizontal Well Chemical Blocking Agent

For horizontal wells which produce overplus water easily,operate technics complicatedly,water location difficulty,low accuracy and high cost,implementing mechanical water shut off is so difficult.It is necessary to select a chemical block agent which has the strong chemical stability and adaptiveness,easy operating technique,and making it convenient for production.In this review article,by using of horizontal wells mining simulator for graft polymerization system and CS closure of two water shut off agent s...