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针对油田三次采油三元复合驱注入溶液，即减（NaOH）＋1275A聚合物（PAM）1200mg／L＋表面活性剂（ORS）体系对井下金属管柱的腐蚀问题进行了试验研究．在室温常压、高温高压条件下就该三元体系对井下金属管柱、井下工具所用的J-55钢、45号钢及其保护层等6种试样的腐蚀情况进行了试验，并研究分析了该三元复合体系对金属管柱及工具的腐蚀机理，试验结果为油田注入三元体系金属管柱防腐蚀保护层的选择提供了依据。
Aiming at the corrosion problem of the downhole metal pipe column by injecting solution, ie NaOH (NaOH) + 1275A polymer (PAM) 1200mg / L + surfactant (ORS) into the oilfield tertiary recovery ASP flooding system. Under the conditions of normal pressure and high temperature and high pressure at room temperature, the ternary system was used to test the corrosion of 6 kinds of samples, such as downhole metal pipe string, J-55 steel, 45 steel and protective layer used in the downhole tool, The corrosion mechanism of the ternary composite system on the metal pipe and tools was analyzed. The experimental results provided the basis for the selection of the anti-corrosion protective layer of the metal pipe for the ternary system injected into the oilfield.