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公开(公告)号：US5209859A
公开(公告)日：1993-05-11
申请号：US835704
申请日：1992-02-12
CPC分类号： C09K8/54 , C23F11/04 , Y10S507/934
摘要： An acid system for acidizing wells contains corrosion inhibitor additives which consist essentially of a metal selected from antimony and antimony mixtures, a quaternary compound, and a surfactant. The corrosion inhibitor is free of toxic acetylenic compounds.
摘要翻译： 用于酸化井的酸性体系包含腐蚀抑制剂添加剂，其基本上由选自锑和锑混合物的金属，季铵化合物和表面活性剂组成。 腐蚀抑制剂不含有毒的炔属化合物。
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公开(公告)号：US5200096A
公开(公告)日：1993-04-06
申请号：US768060
申请日：1991-09-27
CPC分类号： C23F11/04 , C09K8/54 , C09K8/74 , Y10S166/902 , Y10S507/934
摘要： Corrosion inhibitor additives are added directly to an aqueous acid solution used in acidizing subterranean formations. The additives comprise a bismuth compound, a quaternary compound, and a surfactant. The corrosion inhibitor is free of toxic Sb and acetylenic compounds.
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公开(公告)号：US5002673A
公开(公告)日：1991-03-26
申请号：US332629
申请日：1989-03-31
CPC分类号： C09K8/54 , C23F11/04 , Y10S507/939
摘要： A corrosion inhibitor formulation for use in well treatig acids includes a highly polar aprotic solvent having dissolved therein (a) a complex of a metal compound and a quaternary ammonium compound and (b) a dispersant capable of dispersing the complex in the well treating acid solution.
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公开(公告)号：US5089153A
公开(公告)日：1992-02-18
申请号：US494673
申请日：1990-03-16
CPC分类号： C23F11/04 , C09K8/54 , Y10S166/902 , Y10S507/934
摘要： Corrosion inhibitor additives are added directly to an aqueous acid solution used in acidizing subterranean formations. The additives consist essentially of a metal selected from antimony and antimony mixtures, a quaternary compound, and a surfactant. The corrosion inhibitor is free of toxic acetylenic compounds.
摘要翻译： 将腐蚀抑制剂添加剂直接加入到用于酸化地下地层的酸性水溶液中。 添加剂基本上由选自锑和锑混合物的金属，季铵化合物和表面活性剂组成。 腐蚀抑制剂不含有毒的炔属化合物。
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公开(公告)号：US5130034A
公开(公告)日：1992-07-14
申请号：US674612
申请日：1991-03-25
CPC分类号： C09K8/54 , C23F11/04 , Y10S507/939
摘要： A corrosion inhibitor for an acid well treating composition includes first metal ions including Sb, Cu, and Bi complexed with a quaternary ammonium compound and second metal ions complexed with a quaternary ammonium compound. The complexed compounds may be prepared and introduced into the acid or the first metal ions may be introduced directly into the acid system.
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