MANSAM are the World Leaders in Offshore Pipelines and Cables Post-trenching services. In addition to numerous challenging projects executed since its incorporation, MANSAM have recently completed world’s deepest post trenching measuring to 11.8m below Seabed. This has put MANSAM far ahead of any of its competitors in this niche area of expertise. We at MANSAM Group custom build or modify our existing equipment depending upon the project / site specifications. MANSAM are well capable & experienced with trenching the shallowest shore approaches (starting from the beach), long sections of shallow mudflats, escarpments profile rectifications, deep water diverless trenching and other related trenching works including Pre-trenching, Pre-lay span rectification, Post-lay span rectification and pipeline vertical out of straightness rectification etc. Depending upon the circumstances, our equipment can be used from DP vessels, pipelay barges or shallow draft accommodation barges. We also offer our custom-built shallow draft pontoon systems for long stretch of shallow shore approaches. We strongly believe that there is a solution for almost every technical challenge on the project.
MANSAM Systems are capable of trenching product sizes of 25mm diameter FOC cables to 1500mm diameter pipelines. The standard subsea concrete coated pipelines are generally limited to 60″ OOD and the HDPE Pipelines can make up to 2500mm (including concrete weight saddles). When it comes to trenching, at MANSAM we believe every technical challenge has a solution if provided sufficient time for planning and by using the correct equipment & methodology:
Most of MANSAM trenching systems are easily converted to backfill systems. Depending upon the soil types and project requirements, we offer mechanical backfilling using jetting system, excavators or Clamshell methods.