随着油区储量的减少,原油开采难度逐步加大,通过注水驱油成为现在通行的采油方式。注水驱油虽然能够提高石油的采收量,但是导致采出液的含水比例越来越高。油水分离后,这部分含油水成为采油污水。部分采油污水可以经过处理后回注到地层,达到采油污水再次利用的目的,但是回注污水的处理也成为一个难题。而且随着二元甚至三元驱油技术的大量应用。添加的水溶性聚合物和表面活性剂导致了回注水的处理难度越来越大。采油污水水质的分析对采油污水的处理有着至关重要的作用,我们通过多种方法,利用质谱、红外、ICP电感耦合等离子体等检测方法对胜利油田东四联的回注污水进行了细致的检测,并且提出了采油回注污水的的优化处理建议。 With the reduction of oil reserves, the difficulty of crude oil exploitation gradually increases and oil flooding has now become the prevailing oil recovery method. Water flooding, although able to increase the amount of oil recovered, but led to the growing proportion of the water produced by the fluid. After oil-water separation, this part of oil-water becomes oil-producing sewage. Some of the oil-producing wastewater can be treated and injected back into the formation to achieve the purpose of recycling oil-producing wastewater. However, the treatment of reinjected wastewater has also become a challenge. And with the dual or even three yuan flooding a large number of applications. The addition of water-soluble polymers and surfactants has led to an increase in the difficulty of refilling the water. The analysis of the quality of the oil-producing sewage water plays an important role in the treatment of the oil-producing wastewater. We have made a detailed examination of the injection water of Dongsilian in Shengli Oilfield by a variety of methods, such as mass spectrometry, infrared, ICP inductively coupled plasma Detection, and put forward the oil recovery injection sewage treatment recommendations.