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本文对分离器冲砂系统进行了研究。理论分析表明，砂层流化是冲砂系统的重要特性，为此对冲砂系统定义了一个新的参数——流化系数F（或称冲破系统效率），并导出了用无因次群表示的冲洗时间和分离器中的砂体积。广泛的实验资料表明，新的无因次群对研究冲砂系统的特性是非常有用的，用这些无因次群可以将表示冲砂系统特性的有关数据缩减为一条通用的砂衰减曲线。注化系数有一个临界值，当冲砂系统的流化系数F大于该临界值时，冲砂系统属于超安全设计；当冲砂系统的流化系数F大于该临界值时，冲砂系统属于于无效设计。实验还获得了有关砂子在分离器中的纵向迁移率和排污口间隔方面的重要数据。研究表明，对于每个排污口，最好用低的隔离板将其隔离开，而冲洗流的大小需要根据适当的注化系数F来确定。同时还发现，冲洗大直径的分离器会更困难些，一般要用两、三排冲洗管。经排污口排出的砂-水浆中砂的沈度可以用工业用的伽马射线密度计测定，且该浓度值（以用来控制冲砂时间。根据本研究结果设计的冲砂系统已在北海的Forties油田的分离器中进行了试验，并用红外线热图像显示了其工作状况，结果表明，新设计的冲砂系统能够有效地解决分离器中的砂堆积问题。
In this paper, separator sandblasting system was studied. Theoretical analysis shows that sand fluidization is an important characteristic of red sand system. For this reason, a new parameter is defined for red sand system - the fluidization coefficient F (or breakthrough system efficiency), and the non-dimensional group The flushing time and the sand volume in the separator. Extensive experimental data show that the new dimensionless group is very useful for studying the characteristics of the sandblasting system and that these dimensionless groups can be used to reduce the relevant data representing the characteristics of the sandblasting system to a common sand attenuation curve. The injection coefficient has a critical value. When the fluidization coefficient F of the red sand system is greater than the critical value, the red sand system belongs to the ultra-safe design. When the fluidized F of the red sand system is greater than the critical value, the red sand system belongs to Invalid design. The experiment also obtained important data on the longitudinal mobility of the sand in the separator and the discharge port spacing. Studies have shown that for each outlet, it is best to isolate it with a low barrier, and the size of the flushing flow needs to be determined by the appropriate F-factor. Also found that washing larger diameter separator will be more difficult, generally use two or three rows of flushing tube. The sediment concentration in the sand-water slurry discharged through the outfall can be measured with an industrial gamma ray densitometer, which is used to control the flushing time. The sand blasting system designed according to the results of this study has been tested Experiments were carried out in the separators of the Forties field in the North Sea and the infrared thermography was used to show the working conditions. The results show that the newly designed sand-washing system can effectively solve the problem of sand accumulation in the separator.