Other specialized chemical washes may be used in the remedial treatment of scales or paraffin deposits in production tubulars.
其它的特殊的化学冲洗剂可用于对生产管中的水垢或石蜡沉积进行补救性处理。
STJ-B aiding agent is a newly developed phosphorus silicate chemical additives, which has favorable effects on slowing down the erosion, preventing the scales and re-ducing the interfacial tension.
助剂是一种磷硅酸盐化学添加剂，具有良好的缓蚀防垢和降低界面张力的效果。
The complex surface active agents with success applied in chemical cleaning of dowthem scales in heating casing of ball valve in PTA plant was presented.
采用复合表面活性剂对PTA装置球阀加热夹套热媒垢成功地进行了化学清洗。
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