May 18, 2010
Order placed for first CSS design vessel
Will the Compact Semi Sub vessel design concept "change the way the offshore industry works?"
Marine Asset Corporation (MAC) thinks so. It recently signed a contract with Fujian Mawei Shipyard in southeast China for the construction of a 500 man Compact Semi-Sub Accommodation Vessel - CSS Accomodator. Projected delivery is December 2012.
Marine Asset Corporation is a company established to hold the share interest in the CSS design concept previously held by Minnow Marine Projects Limited (MMPL) - a company sold to the GMMOS Group in December 2009. As the CSS did not fit into GMMOS Group's plans for MMPL, a new company was created to hold its already substantial interest in the concept and take the investment forward to the next phase.
The CSS concept has taken five years to progress from the original sketch on A4 paper, to the MODU-coded design of today. Over $2 million has been invested in the design concept; including detailing, computer modeling, tank testing and close liaison with class.The result creates a vessel said to be capable of working in any water depth without the need to jack up or set anchors.
The semisubmersible hullform provides significantly reduced roll angles compared to a mono-hull and the DPS-3 control provides an enhanced level of safety during station keeping close to any fixed structures.
Funds to date have been spent on proving the seakeeping, stability, and structural integrity of the hullform, which can be finished to perform a variety of roles.
The first will be an accommodation vessel. Other variants will follow that can be configured for sub sea engineering, diving and ROV duties, in addition to well intervention, and topside construction.
At normal operating draft, and arranged in a sub-sea installation configuration, the CSS is capable of carrying 1,500 tonnes of deck cargo with a total cargo deadweight in excess of 3,000 tonnes.
The vessel can be ballasted down so that the main hull is immersed, increasing the load carrying capability or reducing trimming effect during large crane operations.
The accommodation variant, will have 230 cabins with the majority being 2 man, all with en suite facilities, and able to accommodate 430 passengers, plus the marine crew of 20 and the 50 hotel and catering staff required to care and feed 500 people. Other facilities will include a gym, cinema, recreation rooms and offices for both clients and crew.
A helideck able to support large helicopters will allow crew changes to be safely effected offshore.
With a 600 sq.m deck area, 150 t telescopic crane and an active heave compensated gangway, the CSS ACCOMODATOR is able to support offshore hook up and maintenance activity in adverse weather conditions, and so reduce weather downtime.
The CSS Accommodator and other CSS variants have been designed by STX Europe-owned naval architecture and marine engineering company STX Marine,which has offices in Vancouver, Canada and Houston.