Completion fluid waste disposal technology of offshore platform
Huge amount of waste completion fluid was produced during the completion pro-cess on the offshore platform.Waste completion fluid was a complex stable mixture including petroleum,high polymer and salinity,etc.The direct discharge of waste completion fluid would cause severe damage to the marine environment.Experiment was carried out based on the physical analysis of waste to meet the restrictions in the Bohai oilfield.The treatment process of flocculation,configuration and membrane separation was designed and tested on site.The results showed that after treatment,water and oil contents were 56％and≤1.0％in the solid phase,respectively.Solid mass concentration was 18 mg/L,oil mass concentra-tion was≤10 mg/L,and turbidity was 10.4 NTU in the liquid phase.Requirements for solid phase reduction and recycling of liquid phase were completely meet.
万方数据
维普
