Heimdal Brae De-Waxing Operation Arild Fahre-Skau, Statoil Aidan O’Donoghue, Pipeline Research Limited Hans Petter Rønningsen, Statoil Ketil Rongved, Statoil PPSA Seminar 20th november 2013 Classification: Open 2012-09-28 Heimdal Brae Wax Removal Summary Removing large accumulations of wax using an aggressive high-friction pig with bypass 2 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History 3 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions 4 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions − Pigging operation 5 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions − Pigging operation 6 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions − Pigging operation • Part 2: − Pig design 7 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions − Pigging operation • Part 2: − Pig design − Pigging dynamics 8 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions − Pigging operation • Part 2: − Pig design − Pigging dynamics − Observations 9 Classification: Open 2012-09-28 Presentation contents • Part 1: − System & History − Pipeline conditions − Pigging operation • Part 2: − Pig design − Pigging dynamics − Observations 10 Classification: Open 2012-09-28