King Fahd University of Petroleum and Minerals

Othman Al-Hamouz

Mazen Khaled

Abdulaziz Al-Saadi

Ismail Abdulazeez

Methods for preventing, inhibiting, or reducing metal (e.g. mild steel) corrosion in aqueous media utilizing a water-soluble formulation having a polyurea pre-dissolved in a polar aprotic solvent are described. The polyurea contains reacted units of a diisocyanate and a diaminoalkane. The effectiveness of the methods is demonstrated by corrosion inhibition efficiency and corrosion rate of metallic substrates in aqueous acidic environments using the water-soluble formulation.

Corrosion inhibition method for inorganic acidic media

Polyurea treatment method for metallic corrosion protection

A method of inhibiting corrosion of metal in contact with a corrosive medium in an oil or gas field environment, whereby a formulation containing a polyurea is introduced into the corrosive medium in contact with the metal, wherein the polyurea is formed from a polymerization reaction between a piperazine having at least two reactive amine groups and a diisocyanate. The polyurea is introduced into the corrosive medium at a concentration of 1 to 250 ppm.

Growing community of inventors

Dhahran, Saudi Arabia

Othman Al-Hamouz