“SCAN Stigandi” joined SCAN’s fleet of two other seismic vessels in July 2008, with a sale-leaseback agreement with ships management company, Neptune Seismic AS. SCAN owns all the seismic equipment on board the vessel – mainly manufactured by ION (MSX streamer/recording equipment), Bolt Technologies (APG seismic source system), Greenfield (air compressor system) and Odim (winch & handling systems).
The vessel is equipped with 4x 6000 meter solid (Gel-Filled) seismic streamers, dual 4000 cubic inch airgun sources and all the latest state-of-the art recording, onboard data processing and positioning equipment available in today’s market. The vessel is ideal for the high-end 2D to small and medium size 3D markets.
“SCAN Stigandi” departed the Canadian Shipyard in Halifax early July 2008 for the Caribbean region, where she successfully completed her first seismic contract, ahead of schedule, for a major National Oil Company comprising 4,000 Km of 2D during July and August.
M/V “SCAN Stigandi” before purchase by SCAN and conversion to a seismic vessel.
Description of the vessel
She carries NIS flag with Port of registry being Fosnavåg and is classed under the Loyds register. The total length of “SCAN Stigandi” is 60.97 m with a beam of 14.2 m, a mean draft of 8.0 m, and gross tonnage of 2705.
The vessel’s main engine is a MAN B&W alpha L6-27/38 of 2040kW/2774 BHP at 800 rev/min with 6 generators. The Azimuth thruster on board is a Rolls Royce TCNS 73/80, 880kW (1000kW intermittent), electrically powered. The bow thruster is a Tunnel, MIL Model L500T. Maximum speed of the vessel is 13 knots and with a cruising speed of 12 knots per hour. The endurance of the vessel is somewhat unlimited, as it can be resupplied at sea, with a fuel capacity of approximately 600m3. “SCAN Stigandi” is rated for Bell 212 or S-76 helicopters allowing crew changes to take place at open seas. The vessel has a total of 43 berths and 2 hospital bunks.
The primary seismic features are as follows:
Seismic Streamers: Type MSX solid (Gel-filled), ION. Max number of streamers: 1x 12000m, 2x 12000m, 3x 8000m, 4x 6000m
Energy Air Gun Sources: Type APG (Annular Port Guns), Bolt Operating pressure: 2000 psi, Number of sources: Two (2)
Recording: Type MSX 24 bit Digital, ION, On Board Display: OYO Geospace GS 624-2
Onboard Data Processing: 80 node Linux cluster using Dell Xeon with Dual Quad Core 3 GHz processors with 2 GBytes of RAM per core, 26 + TeraBytes Disk Storage, 3590 tape drives. Plotters: SeisDrive/SeisNet system for real time Q.C. and data management. Paradigm Focus 5.4 Software
Positioning systems: Integrated navigation systems: Spectra by Concept Systems Ltd. DGPS: C-Nav – 2050 Systems (R) w/C-Navigation by C-Nav
RGPS: BuoyLink by Seamap. Gyro/compass: Navigate X MK1 manufactured by Sperry marine/Kongsberg. Echosounder: Simrad Marine EA600 manufactured by Kongsberg
SCAN has implemented a QHSEMS (Quality, Health, Safety and Environment Management System) on all their vessels, which is tied to onshore operations in the company’s offices.
The vessel’s safety equipment meets or exceeds that which is required by international regulations. Onboard safety includes a FRC, Norsafe 6.15 m Merlin and life rafts 6 x 25 men. In addition to the complement of life savers and life-boats, the vessel carries a fast rescue craft, as well as survival suits for 45 men for cold water operations. In case of fire onboard the vessel CO2 is used in the engine room, compressor room and instrument room, for the streamer reels foam is used.
The third vessel
“SCAN Stigandi” was the third vessel to join SCAN; the company is scheduled to deliver three new world-class, high capacity 3D seismic vessels during 2009. The three vessels are purpose-built and specifically designed for efficient 3D and 4D acquisition with up to 10 solid streamers towing capacity, totalling 80 km. The three new vessels will allow SCAN to take an even greater share of the expanding marine seismic market.