论文部分内容阅读
目前油田注入地下清水的水经处理后的水质,尚未完全达到部级水质标准,甚至比水源井的水质还差。作者按照新的注水工艺设计了3种注水流程,可改变这种状况。一、现有地下清水注入工艺存在问题经对华北留17、王二、马一和京22注水站取样分析,发现注水井口水质比水源水质更差,其中悬浮物含量前者是后者的10—24倍,溶解氧为10倍,总铁含量为2—12倍(其中马一站无变化),硫酸盐还原菌含量大一至两个数量级,腐生菌含量留17站大二至三个数量级,京22站略大一些。地下水源水质经多次检测,除粒径外,其他指标均接近水质标准,
At present, the treated water quality of underground water injected into the oilfield has not yet fully met the ministerial water quality standards, even worse than the water quality of the water source wells. The authors designed three waterflooding processes in accordance with the new waterflooding process to change this condition. First, the existing underground water injection process problems After the North China stay 17, Wang Er, Ma and Beijing 22 water injection station sampling and analysis, found that water injection wellhead water quality is worse than water quality, of which the former is the latter suspended 10- 24 times, dissolved oxygen is 10 times, the total iron content is 2-12 times (no change in one horse station), sulfate reducing bacteria content of one to two orders of magnitude, saprophytic bacteria content to stay 17 stations sophomores to three orders of magnitude, Beijing 22 slightly larger. Groundwater quality after repeated testing, in addition to particle size, the other indicators are close to the water quality standards,