高钙油田污水复合防垢剂

COMPOUNDFD SCALE INHIBITORS FOR USE IN HIGH CALCIUM CONTENTPRODUCED WATER

以某种工业废水为主要原料，复配以表面活性剂、有机膦酸以及聚马来酸酐，在室内制得了价廉高效的防垢剂ＺＨ－１和ＺＨ－２，在模拟南疆沙参２井高钙（６０００ｍｇ／ｌ）、高矿化度（１．３×１０￣５ｍｇ／ｌ）采出水中测得防垢率达９５％以上。该二种剂可耐受Ｃａ￣（２＋）８０００ｍｇ／ｌ、ＨＣＯ＿３１０００ｍｇ／ｌ，使用ｐＨ范围≤６。

Compounded scale inhibitor ZH-1 consists of an industrial waste water,surfactant AT and organic phosphinic acid ATMP and ZH-2,besides of those components mentioned, contains polymaleic anhydride additionally.The two agents are cheap and very effective in produced water of high Ca￣(2+) concentration (6000 ppm) and high minerality (1. 3 × 10￣5 ppm) with inhibiting rate≥95%. They rae tolerent to Ca￣(2+) up to 8000 ppm and to HCO up to 1000 ppm and functionize well at pH≤6.0.