Understanding the differences in pipe-lay methods, vessels and activities will build confidence and competence in a range of project work. From identifying the best choice for pipe-lay projects to questioning construction contractors’ output.
S-lay
S-lay process, Vessels and market, Insulated pipe, Lay curve control
Pipe supply, welding, NDT and ECA
Line pipe supply and specifications, Welding procedures, Sample testing, Welding methods, Non-destructive testing (NDT), Engineering critical assessment, ECA case-study
J-lay
J-lay process, Example J-lay projects, Vessels and market, Rapid pipe welding, Connectors, J-lay from drilling rig
Bundles and towed installation
Design of bundles, Fabrication, Towheads, Insulation and heating, Re-usable bundles, Deep water, Advantages of bundles
Installation of flexibles
Installing unbonded flexibles, J-tube installation, Risers, Umbilicals, Bonded hoses
Reel-lay
Reel-lay process, Vessels and market, Special considerations, Ovalisation and cumulative strain, Lay method comparison exercise and discussion
Landfalls
Pull ashore, Pull offshore, Directional drilling
Tie-ins
Flanged connection by divers, Hyperbaric welding, Flanged diverless tie-ins, Connector diverless tie-ins
Health, safety and environment
Health issues, Safety issues, Environmental issues
Management systems
Law, Quality assurance, Health, safety and environment, Commercial risk management.
Pre-commissioning
Gauging and flooding, Hydrotest, Finding leaks, Dewatering, air and vacuum drying
Survey
Geophysical survey equipment and methods, Geotechnical equipment and methods, Visual surveys, ROVs and AUVs, Survey operations, Post survey data analysis
Seabed modification
Sandwave sweeping, Rock outcrop removal, Rock dump, Concrete mattresses, Protection covers, Pipeline crossings
Post-lay trenching and burial
Ploughs, jetters, cutters and dredgers, Cable trenching, Trench transitions, Backfill options
Diving and ROV operations
Diving physiology, Diving operations, Diving market, ROV types and uses, Tooling, ROV market
Decommissioning and abandonment
Legislation, Infrastructure removal, Decommissioning/abandonment in-situ, Pipeline recovery, Re-use, Different interpretation of legislation in USA and Europe, Environment and financial costs
