Influence of Hydrate Formation and Concentration of Salts on the Corrosion of Steel 20 Pipelines

Abstract

One of the ways to increase natural gas production is to conserve and/or intensify existing wells with their subsequent development. They are characterized by a high content of highly mineralized water, which leads to an increased risk of hydrate formation and internal corrosion. The issue of the formation of gas hydrates in industrial pipelines, which is a major problem for the exploitation of industrial gas pipelines, requires considerable attention to be made to exclude emergency situations. The main task of the study – to determine the effect of hydrates on the corrosion of the pipeline in order to prevent emergencies. A technique for studying the effect of hydration on the corrosion of pipelines has been developed. The combined analysis of the corrosion behavior of pipe material in aggressive media of chloride type was done. According to the results of corrosion-mechanical tests, regularities of joint action of mechanical stresses, concentration of chlorides and hydrate formation on the speed and localization of corrosion processes are established.

Stressed State of Chrome Parts During Diamond Burnishing

“…Mining equipment operates under extreme conditions at high temperatures, sign-changing loads and contact loads in aggressive environments containing hard abrasive rock particles during drilling [1-3] and mining [4,5]. Therefore, means are used to increase the service life of the equipment, in particular various wear-resistant and corrosion-resistant coatings are used, which allow to rationally combine the properties of the coating material and the base, in particular, deposit-ed [6][7][8][9], laser [10], formed coating by electric spark alloying method [11,12], formed coating by hybrid ion-plasma discharge system [13] and chrome [14,15].…”