摘要
针对陈25块降黏复合驱采出水配注聚合物溶液黏度较低的问题,进行一体化装置处理技术研究。该装置集曝气、接触氧化、吸附过滤、电极极化于一体,曝气可去除水中的部分二价铁、硫化物、COD等还原性物质,从而提高污水配注聚合物溶液的黏度;滤料具有催化和过滤双重功能,催化作用提高了亚铁离子等还原性物质的去除效率,过滤作用可去除单质硫、铁离子化合物等的沉淀;电极极化具有除氧及杀菌功能。该技术通过现场实验,处理后水质达到污水配注聚合物要求,配注聚合物溶液井口黏度平均33 mPa·s以上,增黏效果明显。
Studies on integrated device treatment technology in viscosity-reducing compound flooding are being conducted in Chen 25 Block to address the issue of low viscosity of polymer solutions prepared by produced water.Aeration,contact oxidation,adsorption and filtration,and electrode polarization are all integrated within the device.Aeration can increase the viscosity of the polymer solution made by sewage by removing some reductive elements from water,such as divalent iron,sulfide,and COD.The filter material does both filtration and catalysis simultaneously.Filtration can remove the precipitation of elemental sulfur and iron ion compounds,and catalysis increases the removal effectiveness of reducing chemicals like ferrous ions.The electrode polarization has the functions of deoxidizing and sterilizing.Through field tests of this technology,it has been demonstrated that the water quality after treatment satisfies the criteria for polymer dispensing in sewage.The effect of the viscosity-increasing polymer injection solution,which has an average wellhead viscosity of above 33 mPa·s,is obvious.
作者
陈景军
徐福刚
刘向军
CHEN Jingjun;XU Fugang;LIU Xiangjun(Hekou Oil Production Plant of Shengli Oilfield Company,SINOPEC,Dongying 257200,China)
出处
《复杂油气藏》
2022年第3期124-126,共3页
Complex Hydrocarbon Reservoirs
关键词
驱油
水质
水处理
聚合物黏度
还原性物质
曝气
oil displacement
water quality
water treatment
polymer viscosity
reducing substance
aeration
