De Hoop awarded contract for 10 PSVs for ADNOCYard News // December 18, 2013
Shipyard De Hoop in The Netherlands has been awarded a contract to design, build and deliver 10 PSVs for Abu Dhabi National Oil Company (ADNOC).
ADNOC issued an invitation to tender at the beginning of 2013. Following technical prequalification the group of tenderers was reduced to a shortlist and the contract was won by Shipyard De Hoop.
The first vessel is to be delivered early 2015, whilst the delivery of the other nine vessels spread over 18 months with the last PSV to be handed over at the end of 2016.
Production of the 10 vessels will be split between the two shipyard locations of De Hoop, Lobith and Foxhol. The vessels will operate in the offshore oil and gas fields of the United Arab Emirates, under the operating company ESNAAD, which is a member of the ADNOC Group.
The ships will be 65m x 15.8m and will have the highest possible DNV Environmental Regularity Number (ERN) of 99,99,99,99.
The diesel-electric propulsion system for the vessels consists of two azimuthing thrusters at the stern and two bow thrusters. The hullform below the waterline is optimised to reduce drag, allowing for a transit speed of 13 knots at lowest possible power (2,500kW), whilst the shape above the waterline is designed to obtain a very low drag coefficient (Cd), thus reducing the power requirements in DP-mode considerably.
The vessel will have three generator sets of 1600kW each, driven by medium speed diesels, to power the propulsors and other consumers. The high level of redundancy guarantees the vessel remains fully operational, even with one complete generator set out of service.
The PSV will be kept on station with a dynamic positioning (Lloyd’s Class DP(AA)/DP2) system, when carrying out loading / unloading operations around offshore drilling rigs or production platforms.