Experimental Study of the Corrosion Inhibitors CHIMEC1038 Efficiency in Gas Production Installations: A Case Study in the Algerian Gassi Touil Region

Abstract

The corrosion of gas production equipment in the Algerian Gassi Touil gas production region manifests in surface installations and poses a major problem of degradation in the presence of salts (NaCl) and iron ions in this region . Monitoring and detection ofGassi Touil  corrosion are carried out through ultrasonic measurements, chemical analyses, and industrial tests involving the injection of 100% CHIMEC1038 film inhibitor. The ultrasonic test shows a decrease in thickness in the pipelines with the injection of 100% CHIMEC1038 inhibitor. Chemical analyses (iron dosage and pH) indicate a decrease in [Fe⁺²] concentration and an increase in pH for production wells and the arrival manifold in the Nezla zone in Gassi Touil region.The industrial study demonstrates the effectiveness of the CHIMEC1038 film inhibitor in reducing the corrosion risk in production wells and the arrival manifold the efficiency is . Electrochemical study at T=45°C show an improvement in the efficiency of the injected corrosion inhibitor CHIMEC 1038 (E_FF=82.87%) to reduce the corrosion rate from V=202.9µm/year (without inhibitor) to34.93 µm/year (with inhibitor).