Here you will find some of our technical flyers and papers which are available to download. If you would like more information on the applications for our technology, please contact us.
- CoMic™: Impacts of Solids on the Availability of Corrosion Inhibitor
- CoMic™: Do Surfactant Chemicals Form Mixed Micelles?
Surfactant-type corrosion inhibitors are designed to adsorb to the internal surface of pipelines, forming a passive hydrogen layer to prevent access of corrosive liquid to the pipe surface. When dosed at a high enough concentration, the surfaces in the system will become saturated and inhibitor will accumulate in the production fluids forming aggregates known as corrosion inhibitor micelles. These form at the Critical Micelle Concentration (CMC). Solids originating from formation residues, corrosion by-products and scale formation can all provide secondary binding sites for corrosion inhibitor, leading to decreased availability and implications for system protection.
LUX Assure’s CoMic™ technology detects micelles in the water phase of an oilfield sample to provide information on inhibitor availability. It was used here to determine the effect of solids on inhibitor.
Corrosion inhibitors used in the oilfield are generally formulations which consist of multiple chemical components. The surfactant molecules which provide the corrosion protection can contain different carbon chain lengths and/or different head groups (e.g. imidazoline, quaternary amine). CoMic™ detects micelles when a fluid contains surfactant above the critical micelle concentration (CMC) but what is the impact of the presence of multiple species? Do mixed micelles form where micelles are comprised of different surfactant molecules or do multiple CMCs exist?