Bibby said the project involved the inspection of 48 pipelines, with a combined length of 272 kilometres, and 93 platform risers.
The work was carried out using the Bibby Spring support vessel which is operated by Bibby's Singaporean subsidiary, Bibby Offshore Singapore.
Bibby also revealed on Monday that it had signed a charter agreement with Olympic Shipping for the Olympic ARES construction support vessel.
It