Corrosion of steel in the oil-field waters has many aspects. It is known that metals corrosion is due to the dissolution of metal accomplished by the reduction of one of environment’s components. The laboratory studies required to know the chemical composition of the corrosive aqueous environment and the metal – environment interactions. Corrosion rate has been determined through the weight loss of corrosion coupons and has been expressed as gravimetric index. The effect of Na-lignosulphonate on the corrosion rate of steel in deposit waters has also been studied.
