JSD 6000

The dynamically-positioned ‘JSD 6000’, a customised ULSTEIN SOC5000, is a unique, innovative design featuring heavy lift, S-Lay and J-Lay via a large, off-centre moonpool capabilities, allowing her to serve deepwater and SURF markets as well as shallow water EPCI projects.



Built by

Zhenhua Heavy Industries (ZPMC), China



Owned by

JSD 6000

Designed by

Ulstein Design & Solutions BV

Ordered by


Principal dimensions

215.9 m
49.0 m
Draught (max):
10.9 m
Speed (max):
12 kn
399 POB

Note: Subject to selected variant configuration


NOV revolving main crane, lifting capacity:
5,000 t
Remacut S-lay system via centre firing line below main deck:
600 t
IHC EB J-lay system via moonpool:
2,000 t
Installed power:
6 x 8,500 kW
Positioning system:
JSD6000 hull assembly
JSD6000 hull assembly

Ship history

In January 2014, Sharjah based Petrofac ordered the Petrofac JSD 6000 deepwater derrick lay vessel, a customised ULSTEIN SOC 5000 design developed by Ulstein Design & Solutions B.V. The ship was contracted to ZPMC shipyard in China. Petrofac terminated the construction contract with the yard in October 2015.

The design features an NOV revolving main crane with 5,000 mt lifting capacity. But what makes this vessel truly unique is the combination of a 600 mt Remacut S-lay system via a centre firing line below main deck, and a 2,000 mt IHC EB J-lay system via a moonpool. This double deck configuration, a distinctive feature in Ulstein Design & Solutions BV's designs, allows for a large, unobstructed deck area and below deck pipe fabrication.

The JSD 6000 vessel is the third customised version of the ULSTEIN SOC 5000 design after the ‘Seven Borealis’ and ‘Aegir’, which are both in operation.

24 April 2018: Petrofac signed an agreement to sell the JSD 6000 deepwater derrick lay vessel project to Shanghai Zhenhua Heavy Industries (ZPMC). Petrofac will provide technical support for the construction of the vessel, which is expected to complete in 2022.

21 October 2020: Assembly of the two half hull sections

27 December 2020: The JSD 6000 was launched at the ZPMC Qidong shipyard. After 18 months of hard work and dedication of all team members and other parts involved in the project, the vessel construction activities will continue at the ZPMC Changxing base for further challenges up to sea trials and delivery stage.

The JSD6000 being launched in December 2020 at the ZPMC Qidong shipyard, China.
The JSD6000 being launched in December 2020 at the ZPMC Qidong shipyard, China.

Ulstein portfolio of derrick lay designs

Please contact us for more information

Ulstein Design & Solutions B.V.

Cornerstone Building (6th floor)
Rotterdam Airportplein 32
3045 AP Rotterdam
The Netherlands

Tel: +31 10 475 00 11