Year: 2005
Location: Gulf of Mexico - GC 65
Water depth: 1400 ft / 427 m

During the decommissioning of the Rocky field, the subsea tieback to the Bullwinkle Platform needed to be removed to allow future installation in the existing J-tube. Delmar used their experience with towed pipelines and pipeline initiation to develop plans to remove the pipe-in-pipe flowline from the J-tube and permanently abandon the flowline on bottom in a designated safe zone. The flowline pull was accomplished using ROV cuts and fishing spears to mechanically grab the bare pipe, allowing the AHV to remove the flowline from the production platform.

  • Pipeline decommissioning using AHV
  • Permanent abandonment of infield flowline