摘要
用聚合物驱采出水在不同渗透率天然岩心上进行注水实验，结果表明，采用常规污水处理方法处理后的聚合物采出水，当悬浮固体含量１５ｍｇ／Ｌ左右、含油量１５ｍｇ／Ｌ、悬浮颗粒直径小于５μｍ的悬浮固体颗粒体积占悬浮颗粒体积的百分数大于７０％时，完全可满足中、高渗透层注入水水质指标的要求。为降低水处理工艺的成本，提高经济效益，对于高渗透层还可将悬浮固体含量、油含量的水质指标进一步放宽为３０ｍｇ／Ｌ。
Produced water reinjection experiment after polymer flooding on the natural cores with different permeabilities shows that so long as the suspended solid content is about 15mg/l; oil content is 15mg/l and suspended solid grain (the diameter less than 5 μm) content volume is more than 70% of the total suspended grain one, the polymer flooding produced water treated by the conventional sewage disposing method can completely meet the injecting water quality demands both in mediate and high permeability layers. In order to reduce the cost of the disposal technology and increase the economic effects, the water quality indexes in high permeability layer , such as the suspended solid content and oil content, can still extend to 30mg/l.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1998年第4期25-26,共2页
Petroleum Geology & Oilfield Development in Daqing
关键词
聚合物驱
采出水
污水
回注
油田
实验研究
Polymer flooding, Produced water, Sewage, Reinjection Ding Lianzhi, Zhang Qingru & Zheng Yan
