Integrated offshore jacket installation and foundation solution in the Republic of Congo

The complete jacket scope under a single contract was delivered, streamlining execution for Hilong Marine Engineering. Services included pile handling, jacket levelling, grouting, pile driving and reverse-circulation drilling in 27 m water depth.  

We deployed internal lifting tools for both primary and insert piles, 600Te jacket levelling tools, Claxton’s S90 hammer for pile driving, and the MDR008 reverse-circulation drill with a pneumatic gripper can. Our custom offshore grouting spread, including rotary jet mixer, silos, and lab, ensured consistent material control. 

Equipment was mobilised from Acteon hubs in the UK, Ireland and Singapore. Close coordination between logistics, engineering and offshore crews, combined with pre-packaged spare parts and remote support, ensured the equipment arrived on time and reduced offshore complexity.

• MDR008 reverse-circulation drill – enabled efficient drilling in complex seabed conditions.
• 600Te jacket levelling tools (JLTs) – delivered accurate positioning and alignment of the jacket structure.
• Size-adapted internal lifting tools (ILTs) – ensured safe handling of primary and insert piles.
• Custom offshore grouting system – included a rotary jet mixer, cement silos and mobile lab for material control.
• Mobile workshop and offshore lab – supported responsive execution and quality assurance.
• Claxton S90 Hammer – provided reliable pile driving with hose reel powerpack and spare units
• Integrated service package – reduced interface risk and helped optimise vessel time and emissions.