大庆油田南一区西西块生产井见效延迟分析

Analysis of Production Well Effective for Slow on Southwest Block of Daqing Oil Field

目前,大庆油田南一区西西块正在进行高浓度聚合物驱矿场试验。产量分析结果表明,生产井出现了见效延迟现象。针对大庆油田南一区西西块矿场实际需求,并结合试验区油藏地质特征,开展了聚合物驱油体系的室内研究工作。通过室内物理模拟实验,对见效延迟现象进行了研究。结果表明,驱油剂与油藏的适应性是影响生产井见效的主要因素,所以筛选与目的油藏匹配的驱油剂,并及时调试或维修现场注入设备,可以明显缩短生产井见效延迟时间,这对大庆油田的后续开发有重要意义。

High concentrations of polymer flooding pilot test has operated on southwest block of Daqing Oil Field. The field test result shows that production well took effected slowly. For the actual demands of plot, according to oil reservoir geology characteristics of southwest block, the phenomen is analyzed on of production well effective for slow by polymer flooding system research work. The result shows that compatibility between polymer and reservoir is the main factor of effecting slowly. As a result, servicing equipment timely and improving the compatibility between polymeri flooding system and reservoir can short effecting slowly of time, which has great significance for Daqing Oilfield.