Oilfield additive acidizing corrosion inhibitor is not just a kind of corrosion inhibitor, it includes high temperature and low temperature types, and is widely used. Today, oilfield additive manufacturers will reveal the secret of why acidizing corrosion inhibitors are used in the oil industry.
Acidizing is an important measure to increase the production of oil and gas wells and increase the injection of water wells, and has been widely used in the oil industry. However, the acid used in the acidizing process will cause serious corrosion to pipelines and equipment, and will also cause potential harm to the formation. In order to reduce acid corrosion and ensure the successful implementation of acidizing construction, the most economical and effective method is to add high-efficiency acidizing corrosion inhibitors to the acidizing fluid. At present, the acidizing corrosion inhibitors used in my country mainly include quaternary ammonium salts, Mannich bases and imidazolines. Imidazoline corrosion inhibitors have excellent corrosion inhibition performance for medium carbon steel in hydrochloric acid. Mannich base corrosion inhibitors are highly valued as corrosion inhibitors suitable for concentrated hydrochloric acid media under high temperature conditions due to their good corrosion inhibition performance. They are currently a hot topic in the research of corrosion inhibitors. Mannich base is a type of corrosion inhibitor with excellent performance and is widely used as a corrosion inhibitor for high-temperature concentrated hydrochloric acid in acidification operations.
With the increasing requirements for acid corrosion inhibitors, common acidification corrosion inhibitors have the disadvantages of easy coking, stratification, and unstable dissolution and dispersion at high temperatures, which may cause further damage to the formation; due to problems such as the molecular structure of a single Mannich base corrosion inhibitor, it is difficult to achieve the ideal corrosion inhibition effect when used alone; the current research and development direction of acidification corrosion inhibitors is to develop a new, environmentally friendly, high temperature and concentrated acid resistant long-term corrosion inhibitor compound system; the high-temperature acidification corrosion inhibitors developed by relevant domestic experts are mainly composed of multi-component corrosion inhibitors and synergists, especially amines, quaternary ammonium and acetylenic alcohol compound corrosion inhibitors are widely used to achieve high performance and multi-function.
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