Application of pipeline demulsification and corrosion protection technology

During crude oil gathering and treatment processes at oil field, using demulsifier combined with corrosion inhibitor can not only treat crude oil chemically but also realize pipeline system's corrosion protection. Introduces a gathering process that changes tank additive injection into end-point additive injection to reduce corrosion velocity inside gathering pipeline. By using the process, the liquid produced from oil well will act on each other with liquid additive before emulsification, which greatly raises demulsification effect and raises over 60 % of pipeline corrosion control rate at the same time. The process of end-point additive injection simplifies the flow process at combined station, saves treatment equipment and large volume of energy, realizes energy saving and consumption reducing, and is favorable to system corrosion protection, thus gets an evident economic benefit in the operation of the entire gathering system.