含聚污水回注对油层伤害研究

摘要

The rheological property of polymer-bearing sewage and its compatibility with formation water are measured in laboratory by using the treated polymer-bearing sewage from Sanan Area and natural cores from the poor Layer Sapu and Layer Gaotaizi. The core flooding test of polymer-bearing sewage is done under simulated reservoir fluid conditions. In this paper the quantitative evaluation is given to oil reservoir damage caused by the injection of polymer-bearing sewage. This research can provide feasible basis for the injection of polymer-bearing sewage into the poor Layer Sapu and Layer Gaotaizi.%利用萨南开发区处理后的含聚污水和萨葡差层、高台子层天然岩心，在室内测定了含聚污水的流变性及其与油层水的配伍性，并模拟油层流体条件，用含聚污水做了岩心驱替实验，对含聚污水注入后对油层造成的伤害程度给出了定量的评价，为确定含聚污水回注萨葡差层和高台子层的可行性提供依据。