OSD-IMT, the UK division of Netherlands-based Offshore Ship Designers (OSD), is designing two 120 m IMT9120 Riserless Light Well Intervention / IMR vessels for Austin Offshore Pte Ltd, the shipping arm of Upstream Drilling Pte Ltd, Singapore.
The diesel-electric propulsion vessels are intended to carry out riserless light well intervention, light construction, subsea installation, inspection maintenance and repair of subsea installations. They can deploy three ROVs, and have a 250-tonne-capacity AHC crane as well as a travelling gantry well intervention tower system. The 9,500 dwt vessels have accommodation for 140 persons. Dimensions are 120 m LOA, and 30 m beam with an operational draft of 7.5 m.
The vessels will be built by China Merchants Industry Holdings Co Ltd, Hong Kong, China, under a contract with Singapore-based Upstream - Austin Offshore Pte Ltd signed at the Marintec Conference and Exhibition in Shanghai on Wednesday, 2 December, 2015.