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Part 9 Pipeline Defects
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Oil and Gas Pipeline Design, Maintenance and Repair - cu
www.eng.cu.edu.egPE 607: Oil & Gas Pipeline Design, Maintenance & Repair 5 PROCEDURES OF PLANNING AND CONSTRUCTION 3. Ditching and trenching 4. Boring 5. Tunneling 6. River crossing 7. Welding, coating, and wrapping 8. Pipe laying 9. Backfill and restoration of land • For a long pipeline, the foregoing procedure is applied