Construction Traction Prediction for Long-Distance Pipeline Repair Using Lining Hose

This study investigates the application of flexible composite liners for repairing long-distance subsea pipelines with multiple bends. Employing a comprehensive methodology that integrates theoretical calculations and numerical simulations via ABAQUS, the research addresses the complexities involved in liner installation. Key findings demonstrate the effectiveness of these liners in complex pipeline configurations, highlighting the impact of factors like bend angles and inner wall roughness on installation forces. The study confirms the feasibility of this repair method, offering significant implications for enhancing the safety and efficiency of subsea pipeline maintenance.