Field Tests of Produced Water Atomization Evaporation Reduction in Gas Fields with High Salt Content
The atomization evaporation reduction of produced water in the gas field will greatly reduce the cost of subsequent thermal distillation process.The atomization evaporation test device is developed,and the functional law of influencing factors are revealed through the field tests.It is concluded that increasing water temperature and reducing salinity help to improve the effect of atomization evaporation.When the water temperature increases by 10℃(20→30→40℃),the evaporation effect increases by 10%.When the salinity increases from 0 mg/L to 7×104 mg/L,the evaporation effect decreases by 10%.The evaporation of atomized droplets with a diameter below 150 μm is 30%higher than that of droplets with a diameter between 200-300 μm.At the same time,the effectiveness of the device in anti-droplet drift pollution environment is verified.Considering evaporation rate and anti-droplet drift,the best diameter is 100-150 μm,and the best wind speed is less than or equal to 0.4 m/s.
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