油田含聚污水聚合物降解技术室内实验研究

三次采油技术是油田开发后期稳油增产的主要措施,但随着三次采油技术大规模推广应用,原油脱出污水含聚合物增加,含聚污水处理量也大幅度增加。聚合物的存在造成污水黏度增加、油水分离速度减慢,是造成油田污水处理难度增加的主要原因。因此选择技术经济可行的聚合物降解技术是油田含聚污水处理的关键,通过对几种聚合物降解技术室内模拟实验评价对比,为油田含聚污水处理技术优选提供依据。

Research on the laboratory experiments concerning the polymer degradation technique of oil field wastewater containing polymer

EOR is the main technology to stabilize and increase oil production in the later period of oil field development.But with the large-scale application of EOR technology,the polymer in wastewater increases,and the treatment amount of wastewater containing polymer also increases significantly.The presence of polymer increases the viscosity of wastewater,and slows down the speed of oil and water separation.It is the main reason why wastewater is difficult to be treated.Therefore,choosing a polymer degradation technology that is feasible economically is the key to the treatment of wastewater containing polymer.Several kinds of evaluation and contrast on polymer degradation technologies in laboratory have been carried out,providing the basis of optimizing the technologies for treating wastewater containing polymer.