Difficult to Inspect Pipelines

Agenda

1 Onshore and Offshore Pipelines

1.1 Terminologies (piggable vs. unpiggable, challenging and difficult to inspect)

1.2 Scenarios (Accessibility, Is external inspection an option?)

• Onshore scenarios (CUI, external sheeting, Casings, Materials)
• Offshore scenarios – Riser – (Static Riser, Catenary Risers, Flexible Risers) – Flowlines and unpiggable subsea pipelines

2 Methods of Inspection

2.1 Inspection Technology

• Electromagnetic Technology (MEC, PEC, Eddy Current, etc.)
• UT Technology (TOFD, EMAT, etc.)
• Others (Radiography, optical,…)

2.2 Operation of inspection tools

• Deployment of external inspection equipment Offshore and Onshore
• Internal inspection using – Crawler, How to propel, How to get back – Tethered tools
• External Inspection, How to get through the coating? How to scan long distances

3 Preparation

• Planning (Who is involved, What to do at what time)
• Cleaning (Internal vs. External Cleaning)
• Deployment (LARS, Navigation, etc)

4 Inspection Solutions

4.1 Actual Solutions of various vendors

Target Group

No special prerequisites, but technical understanding. Target Group: Onshore and Offshore Integrity Engineers working with Operators, Integrity Consultants, Service Providers and Classification/Certification Bodies.