SFJC have recently completed over 140 joints for Phase I of the NS2 shore pull project for Kvaerner in St Petersburg, Russia with zero repairs or delays.
This required CCAB, HSS’s & IMPU applications to a 48” CWC weighing in at circa 20 tonnes with the IMPU field joint needing to withstand forces up to 1000 K/N’s as it passed over the pipe rollers required to position the pipe for shore pulling.
Technically this was a big challenge due to the specified material which is both dense and aggressive to inject but with knowledge gained over many years our skilled engineering and operations teams were able to meet the challenge and provide quality joints repeatedly without the need for rework.
During the first phase we have applied close to 55,000 Kg’s of IMPU system.
This was a first project for SFJC’s custom built Clamblast™ equipment. The on-pipe unit will automatically perform the surface preparation to SA-2.5 profile within 8 minutes and only consumes a small handful of cleaning abrasive (grit) during the process and is therefor environmentally friendly. Not only is it user friendly but it s also extremely safe to use, SFJC’s Clamblast™ system helps reduce manual levels Vs traditionally used manual surface preparation methods.
The Clamblast™ unit uses the latest PLC control technology to ensure repeat-ability; joint-after-joint.
Here we have a HSS being applied, this is a skilled process that has 2 operators working in unison on opposite sides of the pipe to carefully work the flame and heat in the same area to allow for good shrinkage without air pockets.
The above image shows a completed field joint at just over 1 meter wide, each IMPU mould weighs over 350 kg’s and takes just 3 minutes to process. once completed it then moves along the line being pulled by a winch system, each joint will travel over rollers which have been designed to withstand 40,000 Kg’s of weight.
Thanks to the Team for their efforts to date on a successful first phase, here to an equally successful and safe second phase due to start in August.