Electrochemical Performance Assessment of Novel Environmentally Improved Corrosion Inhibitors for High Shear and HighTemperature Applications

Abstract Recently there has been an increased demand of environmentally improved corrosion inhibitor products by major Oil & Gas producers. These corrosion inhibitors are expected to perform well under challenging field conditions (high shear, temperature, and pressure). Corrosion inhibition performance and thermal stability are key parameters to consider in the selection process. The greatest challenge here is to develop the best possible chemistry for a wide variety of field applications in the fastest possible way. As a result, high throughput techniques such as electrochemical techniques play a crucial role since traditional immersion tests are time consuming and, in some cases, not reliable. The aim of this paper is to provide an overview of the implementation of electrochemical tests in the screening and selection of recently developed environmentally improved corrosion inhibitors. The electrochemical techniques implemented, (Linear Polarization Resistance (LPR), Potentiodynamic Polarization (PP), and Electrochemical Impedance Spectroscopy (EIS)) have been proven to be reliable and time saving screening techniques. In a very short time frame, a large list of new environmentally improved corrosion inhibitors were developed for a wide variety of field applications.