Hook-up Support Offshore Platform – Heerema Marine Contractors

Engineering lift plans and executing lifting works

Conbit was contracted to engineer lifting plans and execute lifting operations during an offshore installation campaign led by Heerema Marine Contractors. The main objective of the activities was to hook up a topside module to a jacket construction in the Mediterranean Sea. The topside was mounted on top of the jacket by Heerema’s largest deep-water construction vessel, the Thialf.

Conbit provided Heerema with complete structural engineering services and offshore installation expertise as a specialist in custom lifting projects.

Watch how we prepare and execute

Conbit rope access technician working on topside hook-up

Part of the hook-up support was the installation of 11 spool pipes under the sub-cellar deck. Conbit prepared all the rigging and lifting plans, supplied the project-specific equipment, and deployed three experienced rigging teams with rope-access skills. In addition to lifting the spools to connect the jacket with the topside, Conbit assisted with installing the vent stack and emergency lighting and performed many other related activities.

Offshore hook-up support

Preparation is essential in every project operation to minimize delays during offshore installation. The right equipment should be in place to execute this project according to plan.

Structural analysis and capacity checks

Several lifting points had to be installed on the underside of the sub-cellar deck in order to position the spool pipes. Conbit performed not only a structural analysis of the sub-cellar deck’s lifting frame but also capacity checks on the rigging components.

Toolbox

Conbit also prepared detailed lifting plans, executing them using special project-specific equipment. Conbit has a versatile ‘toolbox’ for challenging rigging projects: a 10-foot offshore container filled with standard rigging equipment and rope-access gear for a team of up to 20 persons.

It is becoming increasingly important to find the most efficient solution in today's competitive market. Engaging a single versatile contractor to perform various activities saves costs and improves efficiency and safety. Conbit is a reliable partner with multiple complementary competencies.

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