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通过对聚合物驱北东块的工业性生产区和喇南工业性矿场试验区的连续监测，发现聚合物驱过程中系统降解主要是由机械降解和生物降解引起的。通过对聚合物配注系统各主要环节聚合物溶液的粘度变化情况的分析，找出了在各环节生物降解和机械降解的影响程度。
Through continuous monitoring of the industrial production area of polymer flooding north east block and the experimental area of Laonan industrial mine, it was found that the systematic degradation during polymer flooding is mainly caused by mechanical degradation and biodegradation. By analyzing the changes of the viscosity of the polymer solution in all the main parts of the polymer injection system, the influence degree of biodegradation and mechanical degradation in various links was found out.