一、前言:油田含油污水的回注,是一项具有重要意义的工作。大庆油田把处理过的含油污水注入油层,经过四年多的注水试验,认为是可行的。并且从污水中回收了大量原油,初步做到了变油田之害为油田之利。为了响应名主席“综合利用,大有文章可作”的伟大号召,适应油田 First, the preface: oil injection of oily wastewater, is a work of great significance. Daqing Oilfield to the treated oily wastewater into the reservoir, after more than four years of water injection test, that is feasible. And recovered a large amount of crude oil from the sewage, and initially achieved the benefit of changing the oil field to the benefit of the oil field. In response to the great call by the chairman, “there are many articles for comprehensive utilization,” we can adapt to the oil field