某油田稠油采出液生产分离器机械消泡技术研究

目的 针对某油田进行机械消泡技术研究,进而为促进分离器内稠油的快速消泡提供解决办法.方法 利用Fluent软件模拟不同导流板参数下分离器中气液分离效果及泡沫变化情况,并采用动态解析法发泡方式,利用高压溶气消泡测试系统对不同类型和型号的金属规整填料和两种化学消泡剂,进行消泡测试以及组合消泡实验.结果 导流板放置角度为45°时,分离效率和泡沫聚并效果均较好,而导流板放置距离影响不大;随着消泡填料的高度增加,消泡效果随之增加.结论 分离器入口导流板最佳放置角度为45°,孔板波纹填料SM250*12 cm为优选的机械消泡构件.实际生产采用机械消泡方法即可满足消泡需求,要求更好的消泡效果时,可将机械消泡与化学消泡剂消泡两种方式结合使用.

The Research of Mechanical Defoaming Technology on Production Separator for Heavy Oil Produced Liquid in an Oilfield

In order to promote the rapid defoaming of heavy oil in separators, the mechanical defoaming technology for an oilfield was studied. The separation effect and foam change in separator under different guide plate parameters were simulated with Fluent. The defoaming effect of different types of metal structured packing and defoamers as well as a combination of both were tested by using the high pressure dissolved gas defoaming test system. The results show that the separation efficiency and foam coalescence effect are better when the angle is 45° and the placement distance of guide plate has little effect on separation efficiency and defoaming effect. With the increase of the height of defoaming packing, the defoaming effect increases. To summarise, the optimal placement angle of the inlet guide plate in separator is 45°, SM25012 cm corrugated packing was selected as the optimal mechanical defoaming component; Mechanical foaming method can meet the demand of defoaming in actual production, and when better defoaming effect is required, mechanical defoaming method and chemical defoamer can be combined.