涡流三相气浮在海上生产水处理中的分离特性  

Separation characteristics of vortex three-phase flotation for offshore produced water treatment

作　　者：刘萌 戴国华 曲兆光 刘春雨 陈正文 马金喜 金秋 LIU Meng;DAI Guohua;QU Zhaoguang;LIU Chunyu;CHEN Zhengwen;MA Jinxi;JIN Qiu(Tianjin Branch of China National Offshore Oil Corporation Ltd.,Tianjin 300459,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《工业水处理》2025年第1期167-173,共7页Industrial Water Treatment

基　　金：中海石油(中国)有限公司天津分公司自主科研项目(ZZKY-2020-TJ-02)。

摘　　要：采出液含水率逐年上升导致生产水处理设备的占地面积越来越大。为促进涡流三相气浮在海上平台的应用,定量研究了清水剂浓度、处理量、进气量、油品性质对涡流三相气浮处理效果的影响。结果表明,随清水剂注入浓度增大,设备出口含油浓度先逐渐降低随后略微升高,清水剂适宜注入质量浓度为40 mg/L左右;在设计处理量以下时,随处理量增大,设备出口含油浓度稳定,抗处理量波动效果好;当进气量为入口来液量的1%左右时,设备除油效果好,进气量过大或过小均不利于设备除油;涡流三相气浮对于不同油品性质的生产水均具有高效的处理效果,在设备入口来液含油质量浓度≤2000 mg/L,悬浮物质量浓度≤500 mg/L时,设备出水含油质量浓度≤60 mg/L,悬浮物质量浓度≤60 mg/L,可取代传统的斜板除油器+气浮两级水处理设备,节省占地面积。The increase of production water has led to an increasing footprint of production water treatment equipment.In order to promote the application of vortex three-phase flotation on offshore platforms,the effects of water clarifier concentration,processing capacity,gas intake volume and oil properties on the treatment were quantitatively studied.The experimental results showed that as the injection concentration of water clarifier increased,the oil concentration at the outlet of the equipment gradually decreased and then slightly increased.The suitable injection concentration of water clarifier was about 40 mg/L.When the processing capacity was lower than the design capacity,the oil content at the equipment outlet became stable and the anti processing capacity fluctuation effect was great as the processing capacity increased.When the gas intake volume was around 1%of the inlet liquid volume,the equipment had a good oil removal effect,and excessive or insufficient gas intake volume was not conducive to equipment oil removal.Vortex three-phase flotation had an efficient treatment on production water with different oil properties.When the oil concentration at the inlet of the equipment was≤2000 mg/L and the suspended solids concentration was≤500 mg/L,the oil concentration in the effluent of the equipment was≤60 mg/L and the suspended solids concentration was≤60 mg/L.It could replace traditional inclined plate oil remover+flotation two-stage water treatment equipment to save footprint.

关 键 词：涡流三相气浮 分离特性 清水剂 进气量 处理量 油品性质 

分 类 号：TE992.2[石油与天然气工程—石油机械设备]