Pipeline Construction and Repair Services

By collaborating with our multinational and local technical partners we execute the full project lifecycle of pipeline construction and critical repairs projects.
Some key services we provide are:
•Pipeline surveys and identification of defects or anomalies
•Preparations of pipeline construction/repair work execution plans
•Establishment of Freedom to Operate (FTO) from communities
•Intelligent pigging and verification digs
•Right-of-Way (ROW) bush clearing
•Survey and re-establishment of missing pillars/beacons along
pipeline routes
•Pipeline pressure testing, flushing/purging, Nitrogen packing and
pre-commissioning
•Excavation and backfilling of defective pipeline sections
•Dredging access slots in swamps
•Construction of cofferdams
•Sleeving of pipelines
•Welding of line-pipe, field joint coating and laying into trench
•Horizontal drilling and pull-in of pipeline
•Pipeline burial and trenching
•Pipeline leak repair by means of sectional replacement
•Radiography and NDT of welds
•Procurement of linepipe

Engineering

–FEED, DE and Review of
engineering design
–Development of BoD and
engineering design
–Engineering reliability studies
–Rehabilitation review and
execution
–Engineering assurance
–Pipeline inspection
alternatives and validation

Assurance

–FFP assessment and
(independent) re-assessment
–Pipeline service lifetime
extension
–Corrosion under insulation
(CUI)
–Project assurance and
verification (independent)
support
–Pipeline validation

Cathodic Protection

–CP potential survey
–Soil resistivity tests
–Close interval potential (CIPS)
survey
–Redesign and upgrade of CP systems
–Cathodic Protection Insulation
Joint (I.J) charge out
–Potential / current monitoring

Pigging

–Pigging full value chain (feasibility,
risk assessment, inspection, client
supervision and reporting)
–Gap analysis including
modifications and assurance
–Pig design, pig launcher / receiver
design and fabrication
–Contractor selection and
management
–Pipeline decommissioning pigging
requirement