Subsea7’s Seven Borealis wraps up activities for Saudi Aramco’s Marjan project

Subsea7’s pipelay and heavy lift vessel Seven Borealis has completed its offshore campaign for Saudi Aramco’s Marjan increment project, offshore the Kingdom of Saudi Arabia.

During the course of 2023, Seven Borealis has successfully installed 4 jackets, 9 topsides (PDM), 13 risers, and 20 pipelines of various diameters from 4” to 30”.

This equals approximately to 14,000 MT of steel lifted and set, plus 171km of pipes laid recording approximately 1 million safe man-hours worked without any LTI.

The Marjan increment program is an integrated development project for oil, associated gas, non-associated gas and cap gas from the Marjan offshore field. This development program includes a new offshore gas oil separation plant, and 24 offshore oil, gas and water injection platforms.

Subsea7 was awarded the engineering, procurement, construction and installation (EPCI) contract for the Marjan Increment Projects by Saudi Aramco in September 2019. Subsea executed the activities in consortium with L&T Hydrocarbon Engineering (LTHE), a subsidiary of Larsen & Toubro.

The consortium’s workscope consisted of EPCI of new tie-in platforms, production deck manifolds, approximately 217 kilometres of rigid pipelines, approximately 145 kilometres of power cables, and a fibre optic cable in the Marjan field in water depths of approximately 45 to 52 metres.