聚驱集油管道高回压成因分析及淤积规律研究
Petrochemical Industry Technology（2017）
Abstract
近年来,油井回压有逐步升高的趋势,且以聚驱油井为主,影响油井出油效率和潜力发挥.分析认为含聚采出液粘度高,富含聚合物、蜡及沥青质等重组分的粘胶团增多,在管道内淤积,致使过流面积减小,阻力增加,进而导致井口回压升高;集输温度、含聚浓度及管输液量的变化均会不同程度的加剧管道淤积程度,管路入口、阀门、弯头处淤积行为尤为严重.针对聚驱采出液性质特点,合理确定集输工艺设计参数(集输半径、集输温度等),完善管道清淤工艺设施,实施常态化管道清淤措施,减轻聚驱集油管道清淤程度,降低井口回压,确保聚驱油井平稳运行.
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