Emergency pipeline repair isolation system: isolation technology developed to facilitate pipeline repair of unpiggable defects

摘要

DESPITE GOOD PIPELINE DESIGN and integrity management schemes pipelines can and do get damaged and need to be repaired. The damage could be caused by dragged anchor / landslide / iceberg / fatigue / stress cracking. The damage may be unpiggable (Buckle / Dent) with or without line rupture.