Sembawang Shipyard Clinches FPSO Conversion Contract

abarrelfullabarrelfull wrote on 23 Jul 2012 05:48
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Tuesday, 16 April 1996

Sembawang Shipyard (SembShip), a member of the Marine and Heavy Industries Group of Sembawang Corporation Limited, has successfully secured a major offshore conversion contract.

The conversion contract, which is valued to be in the region of US$20 million, calls for the conversion of the 136,960 dwt tanker TANTAWAN EXPLORER , ex BAYERN , into a Floating Production Storage & Offloading (FPSO) vessel. Owned by Single Buoy Moorings (SBM), a leading engineering and turnkey contractor of floating production systems, the contract was awarded on the strength and track record of Sembawang Shipyard, especially in FPSO conversions.

In the words of Mr R Smulders, Operations Director of SBM, “Sembawang Shipyard is the most competitive in terms of quality and experience and we are convinced that Sembawang is the most suitable shipyard to handle this complex conversion”. Mr Heng Chiang Gnee, Managing Director of Sembawang Shipyard, said “We are pleased that SBM has once again placed its trust and confidence in our project management and engineering capabilities. Having already successfully completed SBM’s conversion of NIELSTOR in 1992, we are confident that we will do an even better job on the TANTAWAN EXPLORER”.

Upon completion, the 1976-built vessel will be stationed at the Tantawan Gas and Oil Field, located in 240 ft water depth and approximately 265 miles south of Bangkok, Thailand.

A significant aspect of the conversion will be the installation of a IMODCOdesigned Single Point Mooring Turret (SPT) system, which will allow the vessel to weathervane freely to take up the position of least resistance to the prevailing winds. Both Upper and Lower Collars and Columns will be installed for turret integration. The process decks also involve the installation of process modules and facilities. The complex nature of the job requires sophisticated computeraided planning to facilitate proper control at various stages of the project.

Substantial steelwork of more than 1,200 tons, will be carried out in the installation of the helideck, process deck support structures, equipment supports and the tandem offloading station, amongst other areas. In compliance with international regulations and safety standards onboard the vessel, the fire fighting system and life saving equipment will be upgraded together with a state of the art fire and gas detection system which will include an extensive safety and emergency shutdown system. Additionally, modification and upgrading works will be carried out to the existing utilities systems as well as the conversion of the main boiler to dual fuel firing. More than 30 km of pipes will be installed to cater for the additional equipment from the process decks to the cargo loading and offloading system. The conversion also calls for the upgrading and refurbishment of accommodation areas, including the galley and laundry equipment for the seventy-man crew.

Other repair works to be undertaken by Sembawang Shipyard include substantial retubing of boilers, overhauling and survey of machinery, piping renewal and steel renewal of another 400 tons. Extensive tank blasting and coating of over 49,000 square metre and hull blasting will also be carried out.

The market potential of the conversion of tankers to FPSO / FSO shows an upward trend due mainly to the increasing development of marginal oil fields. It has been forecast that in the next decade, an estimated fifty units of FPSO are needed for the development of such oil fields. Over the years, Sembawang Shipyard has amassed an impressive conversion track record which includes one of the world’s most sophisticated FPSO conversion of NAN HAI FA XIAN in 1990. The TANTAWAN EXPLORER is the seventh FPSO / FSO conversion in the shipyard and will further enhance Sembawang Shipyard’s skills and expertise in FPSO conversions and reinforce its reputation as the leading shipyard for
shiprepair and conversions.


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