Ancor Pipeline Integrity conducts Internal Corrosion Mechanism Reviews to evaluate the internal corrosion risks associated with the transported fluid, operational conditions, and chemical treatment programs. This review integrates process chemistry, flow dynamics, and inhibitor effectiveness to identify corrosion-prone areas and support integrity planning.

By analyzing key operational and environmental variables, this service allows for the estimation of internal corrosion rates in CO₂- and H₂S-dominated systems and enables the correlation of theoretical results with actual in-line inspection (ILI) data when available.

SCOPE OF SERVICE:

1. Collection and analysis of operational and chemical data, including: 

• Product composition and corrosive species (O₂, CO₂, H₂S, H₂O)

• Flow rate and pressure/temperature profiles

• Details of cleaning pigging operations (frequency, tool type, debris characteristics)

• Corrosion inhibitor and biocide program parameters

2. Identification of potential internal corrosion mechanisms and high-risk segments 

3. Estimation of theoretical corrosion growth rates, including:

• CO₂ and H₂S corrosion rate modeling for carbon steel pipelines

• Comparison with CGR results derived from ILI data (if available)

4. Recommendations for internal corrosion mitigation, monitoring, and chemical treatment optimization 

BENEFITS:

1. Enhances understanding of internal corrosion behavior under operating conditions.

2. Supports validation of ILI data and CGR trends.

3. Informs decisions on inhibitor application and pigging frequency.

4. Strengthens corrosion control programs to support regulatory compliance and audit readiness.