The product is a kind offilm formation corrosion inhibitor, which is composed of home-grown compositepyridine quaternary ammonium salt as main ingredients, other synergist andsurfactant. It can be applicable for high salinity saltwater systemanti-corrosion in the oilfield injection CO₂ displacing oil technical process.By the process, high partial CO₂ control carbon steel metal corrosion, and ithas a protection for carbon steel metal corrosion caused by oil well producedwater with high CO₂ and chloride ion, carbonate ion high salinity. It has anexcellent comprehensive performance and good protective effect in all of oil,gas, and water phase. Meanwhile, it can be able to inhibit corrosion andhydrogen embrittlement caused by H₂S. And also, it has a good compatibilitywith other oilfield chemistry agent.

Good corrosioninhibition properties effect on series of high partial pressure CO₂.

It is applicablefor corrosion control under high partial pressure CO₂ and highsalinity saltwater system corrosion environment in the oilfield CO₂displacing oil technical process, as well as corrosion control for oilfieldwastewater system with certain partial CO₂.

The concentrationof corrosion inhibitor addition is 100mg/Lin the injection CO₂displacing oil technical process. But in the oil well produced water system,the concentration of CO₂ corrosion inhibitor addition is 500 mg/L.it has a better effect with cooperatively using deoxidant in closed aerobicsystem. Dilute corrosion inhibitor 1 ~ 2 times by tap water and then use it.