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分析了影响双河油田注水水质不达标的主要因素 ,认为 :(1)产出污水含S2 -高达 6 0mg/L ,而处理工艺没有采取除S2 -措施 ,是造成水质不达标的主要原因 ;(2 )产出污水含有一定量的残余聚合物 ,使斜板沉降罐、过滤罐的净化效果变差。在动态测定条件下 ,这种含硫污水对铁的腐蚀速度为 1.6— 2 .3mm/a ,超过部颁标准 (0 .0 76mm/a) 2 1倍以上。由于腐蚀不断发生 ,在外输过程中 ,悬浮物含量不断增加 ,水质更加恶化
The main factors affecting the water quality of Shuinhe Oilfield are analyzed. The main factors that affect the quality of water injection in Shuanghe Oilfield are: (1) S2 - up to 60mg / L in the treated wastewater, and S2 - (2) the output of sewage contains a certain amount of residual polymer, so that the inclined plate settling tank, filter tank deteriorating effect worsened. Under the dynamic measurement conditions, the sulfur-containing sewage corrosion rate of iron 1.6-2.3mm / a, exceeding the ministerial standard (0.076mm / a) 21 times more. Due to the constant occurrence of corrosion, the content of suspended solids is continuously increased and the water quality is further aggravated during the process of the external transportation