油田污水回注过程中对储层的损害因素很多,损害程度和原因也不相同,且这些损害通常具有综合性,各因素之间有互相加强作用。本文针对延长(石油)吴起采油厂的回注污水经过水质分析结果得出悬浮物颗粒的粒径中值过大、污水含油量过高、固体悬浮颗粒含量也过多,并得出相应的解决对策。 During the reinjection of oilfield wastewater, there are many factors that cause damage to reservoirs, and the extent and causes of damage are not the same. The damage is usually comprehensive, and the factors reinforce each other. In this paper, according to the result of water quality analysis, the median particle size of suspended particles is too large, the oil content of sewage is too high, the content of solid suspended particles is too much, and the corresponding solution is given Countermeasures.