Indirect Examination Techniques for Buried Pipeline Including DCVG & CIP Survey

Register Now: https://us06web.zoom.us/webinar/register/WN_q109LaJSQ66LLORo_Ei6wg

Learning Objectives
Velosi is conducting a free webinar on “Indirect Examination Techniques for Buried Pipeline Including DCVG & CIP Survey” on Sunday, 25th January 2026, from 2:00 PM to 4:00 PM GST (Dubai Time)

Buried pipelines are among the most critical assets in oil, gas, and utility networks. While they operate out of sight, any failure can have critical safety, environmental, and operational consequences. Moreover, direct inspection of buried pipelines is often costly, disruptive, and not feasible. Indirect examination techniques have become essential tools for maintaining pipeline integrity.

Indirect examination plays a key role in modern Pipeline Integrity Management Systems (PIMS), as outlined in ASME B31.8S for gas pipelines and API 1160 for hazardous liquid pipelines. Techniques such as Direct Current Voltage Gradient (DCVG) and Close Interval Potential (CIP) surveys allow operators to identify coating defects, evaluate cathodic protection effectiveness, and prioritize locations for excavation and direct assessment, particularly for non- inspectable pipelines.

This webinar will provide a comprehensive practical and easy-to-follow overview of indirect examination for buried pipelines, with a strong focus on DCVG and CIP surveys.

The session will be aligned with internationally recognized pipeline integrity standards, including NACE SP 0502 (External Corrosion Direct Assessment – ECDA), NACE SP 0207 (CIP and DC Surface Potential Gradient Surveys), and other relevant NACE, ASME, and API codes.

Key Aspects

• Understanding the role of indirect examination within pipeline integrity management systems
  
• Pipeline integrity requirements as defined in ASME B31.8S and API 1160
  
• External corrosion mechanisms affecting buried pipelines
  
• Applications of indirect examination within NACE SP 0502 – External Corrosion Direct Assessment (ECDA) for non-inspectable pipelines
  
• Practical principles and field execution of DCVG surveys in accordance with NACE SP 0207
  
• Interpretation and classification of DCVG indications for defect prioritization
  
• Close Interval Potential (CIP) survey methodology and assessment of cathodic protection performance
  
• Correlating DCVG and CIP data to support excavation and repair planning
  
• Role of indirect examination in NACE SP 0210 – Pipeline External Corrosion Confirmatory Direct Assessment

How indirect examination complements other integrity assessment methods, including:

• NACE SP 0102 – In-Line Inspection (ILI) operations
  
• NACE SP 0104 – Internal Corrosion Direct Assessment (ICDA)
  
• NACE SP 0204 – Stress Corrosion Cracking Direct Assessment (SCCDA)
• Common field challenges, data limitations, and lessons learned from practical applications

Who Should Attend?

• Pipeline Integrity Engineers
  
• Corrosion and Cathodic Protection Engineers
  
• Asset Integrity and Reliability Professionals
  
• Inspection and Quality Engineers
  
• Operations and Maintenance Engineers
  
• HSE and Pipeline Safety Professionals
  
• Integrity Management, Regulatory, and Compliance Specialists
• EPC contractors and pipeline project teams

Certificate of Training

• A certificate will be issued to all participants upon successful completion of the webinar.