2H offers complete engineering and delivery of subsea systems comprising of jumpers, umbilicals, flowlines and risers for optimised design, increased choice of hardware and improved system operability.
2H’s delivery management services are tailored to meet the needs of all project execution phases requiring detailed design, hardware procurement, fabrication management, inspection services, transportation/shipping management and installation support.
Our System Integrator Approach
We take the system integrator role on a project – an approach well-suited to subsea systems that can have many interfaces with the well system and the host vessel, which tend to drive design and procurement activities. This approach allows for a more optimised design, increased flexibility in hardware selection, and improved operability.
2H can mobilise a multi-disciplinary project team that will define and control project activities for equipment that often have a high degree of project specification – typically presenting the following challenges:
Custom-designed components that push the boundaries of manufacturing capability
Multiple interfaces at the vessel and seabed
Many cross-supplier interfaces to manage within the subsea system
Difficulty in finalising the design of all system components simultaneously
Need for early purchase order placement because of long manufacturing lead times
Need for follow-on engineering to manage change and expedite delivery
Project Experience
Vaalco Energy – Etame Subsea System (2022): 2H was the engineering and system integrator for all subsea equipment during the reconfiguration of the Etame field in West Africa. This included the relocation, repurposing, replacement, and decommissioning of over 35km of new and legacy flexible pipe and umbilicals in more than 30 segments. Scope included risers including I-tubes and hang-off flanges, tether clamps, tethers, gravity bases, and the full field pipeline routing, including steel bridge crossings and stability mattresses.
Total – Moho Nord TLP Top Tensioned Risers (2012-2016): design and delivery management of the TLP TTR systems for Total’s Moho Nord field development, offshore Congo. The scope of work includes 17 production and water injection top tensioned risers and one high pressure drilling riser.
Chevron – Big Foot TLP Top Tensioner Risers and SCRs (2011-2018): detailed design and delivery management of the Big Foot TLP riser systems including 2 high pressure drilling risers, 15 production/water injection TTRs and oil and gas export SCRs.
