Progress and Application of Water Quality Improvement Technology in Xingbei Oilfield
With the continuous changes in the development mode and production demand of Xingbei Oilfield,the sewage system is facing many challenges such as water balance contradiction,external waste liquid impact,and changes in the properties of the produced liquid.In order to ensure the long-term stability and compliance of water quality,it is necessary to continuously tackle bottleneck problems,carry out process optimization,implement fine control,and continuously improve the quality of water injection through the combination of technology and management,system and node,and quality and efficiency.For this reason,Xingbei Oilfield has developed and improved for many years,forming a full process technical management series of"water inflow,sedimentation,filtration,and injection".The water inflow process is improved by developing transition layer inhibitors to improve the liquid inflow from the source.The application of thermal imaging technology,optimization of heat tracing coil structure,and restoration of air flotation process are carried out to improve settlement efficiency in the settlement process.The filtration process utilizes a new type of water distribution breaking plate filtration tank,innovates the"closed tank heating and backwashing"method,optimizes the structure of the recycling water tank to improve the regeneration effect of filter materials.Determination of sulfide and Fe2+management indicators in the injection process,and clarification of reducing substance control methods to ensure system quality.The ultimate goal is to achieve precise water quality control throughout the entire process,continuously improve the quality of water injection,and provide reliable guarantees for the oilfield's"good water injection,sufficient water injection,fine water injection,and efficient water injection".
water quality improvementnode managementsettlement efficiencyfilter material regenerationinjection water quality
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