酰胺缓蚀剂与氯化钙型地层水配伍性研究
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摘要
针对酰胺缓蚀剂在西南某气田使用过程中出现的与氯化钙型地层水不配伍的问题,对缓蚀剂与地层水配伍性进行了研究。通过试验发现,影响缓蚀剂与氯化钙水型配伍的主要因素是分子内酰胺键的数目。当分子内酰胺键数目小于等于3时,缓蚀剂与氯化钙型水配伍良好。以此为基础制备的缓蚀剂C与地层水配伍良好,且能有效抑制腐蚀,能达到抑制井下油套管腐蚀的要求。
Based on the incompatibility of amide type corrosion inhibitor and produced water of CaCl_2 type in south—west gas field,a series of derivatives of amide type corrosion inhibitor was synthesized.According to the experiment results,the number of amide bonds in the corrosion inhibitor was found to be the main factor to the compatibility.The newly synthesised corrosion inhibitor C is compatible well with gas water,and can be used as corrosion inhibitor in gas wells.
引文
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