1 前言国内外对低渗透油气藏的开发十分重视,投入了大量的人力、物力,其中压裂酸化技术是油气井增产、水井增注的一项重要措施。所使用的酸液因地层而异,灰岩地层和灰质胶结的砂岩地层用盐酸,泥质胶结的砂岩地层用氢氟酸。但不管使用何种酸液,对管线和设备都有腐蚀,且腐蚀产生的 Fe~(3+) 1 Introduction At home and abroad, great attention has been paid to the development of low-permeability reservoirs, and a lot of manpower and material resources have been invested. Fracturing and acidizing technology is an important measure to increase production of oil and gas wells and increase well injection. The acid used depends on the formation. Hydrochloric acid is hydrofluoric acid in the limestone and limestone-cemented sandstone formations, and in the muddy cemented sandstone formations. However, no matter which kind of acid liquid is used, the pipeline and equipment are corroded, and the corrosion of Fe ~ (3+)