Geo Barents

3D/ 2D Long Offset / Source Vessel

M/V Geo Barents joined the fleet in 2020. The vessel can operate worldwide as either a 3D, 2D or Source vessel.

Marine and Seismic specifications below describe the general characteristics for the vessel.

Vessel Specifications

OwnerUksnøy Barents KS
Port of RegistryÅlesund
Built / Rebuilt2007
Class Notation+1A1, SF, E0, COMF-V(3), HELDK-SH
IMO Number9252503
Ship TypeSeismic Research Vessel
Call SignLAKK6
Overall Length76.95 m
Breadth moulded/ extreme17.00 m / 21.03 m
Draught mean/ max6.97 m / 9.0 m
Gross Tonnage4979
Net Tonnage1494
Deadweight1345 t
Max Speedapprox 13 knots @ 24 t/24hrs
Cruising Speedapprox 10 knots @ 13t/24hrs
Fuel Consumption SourceTypically 13t/24hrs (depending on source configuration and speed)
Fuel Capacity900 m3 MGO
Fresh Water90 m³

Power specifications

Engines2 x ABC 12VDCZ 2652 kW
Total PropulsionTwin in Gear, 5304kW
Propellers1 x CPP in Nozzle Finnøy P105
Azimuth Thruster1 x 882kW Brunvoll
Bow Thrusters1 x 647kW Brunvoll
Stern Thrusters1 x 647 kW Brunvoll
Auxiliary Generator4 x 1291 kW Cummins

Communication Systems

Inmarsat CFuruno, Felcom 15
Furuno, Felcom 15
Fleet Broadband /IridiumFleet Broadband 250 and Iridium Pilot
Vsat Receivers & NumberTBA
Marisat Receivers & NumberYes
Emergency Radio Beacon (Epirb)Tron 45SX / Tron 40S JOTRON
Ship/Air Craft Radio2 x Jotron, TR-710

Navigation Systems

RadarsFuruno Far 2137 ARPA, S-Band
Furuno Far 2117 ARPA, X-Band
Navnet 3D Radar, DRS4D
Navnet 3D Radar, DRS4D
Gyro CompassAnschutz, Standard 22 Octans
AutopilotAuto Pilot Fwd Anschutz, Pilotstar D
Auto Pilot Aft KONGSBERG SIMRAD A/S, C-Joy Autopilot
Speed LogFuruno DS-80 Doppler/SAL-860 Dual Axis
Echo SounderKongsberg Maritime AS, EA 600 18 kHz &200 kHz range 7000m
Furuno, FE-700
ECDISTelchart, T 202G, C-map
GPSFuruno, GP-150 GPS

Energy Source

Compressors3 X LMF 48/138 – 207 E60, Electrical Driven
Total Air Capacity3 x 1 700 CFM
Gun ControllerSeamap Gunlink 2000
Number of Channels84 per gun array
Sensor and Fire command resolution0.1 ms IE 100us
Gun Sync SpecsUp to +/- 1.0 ms, depends on contract
Timing AlgorithmPositive Peak
Source TypeBolt 1900 LLXT
Source ConfigurationSingle, Double & Tripple
Number of Subarrays6
Guns per Subarray max14
Operating Pressure2000 psi
Sub Array TypeRigid Baro Floats
In-Line distance7 positions @ 3m
Characteristics of firing control unitZero crossing, level detect, peek detect
Type, No. and location of near-field hydrophonesAGH-7100C, 1 per Gun or Gun Cluster x6 per subarray
Type, No. and location of depth sensorsType; AGH-D500 Marine Gun depth transducer
Location: 1st cluster 3rd cluster 6th cluster (Total x3 example) PRESSURE INDICATOR: AGH-P600 (LAST CLUSTER TOTAL X1 EXAMPLE)
Minimum recycle time7 s, depends on source volume
Shut-off valvesNA
Steering systemFix point Baro rigid keel

Seismic Navigation

INSSeaProNav / Orca / Gator
Vessel PositioningDual Fugro Starfix G2/XP2
Source PositioningSeaMap BuoyLink EX
Streamer PositioningSeaMap BuoyLink EX, ION 5011 Digibird
Echo SounderKongsberg EA 600 Single beam 12 kHz & 200 kHz range 7 000m

Seismic Recording

RecordingSercel Seal 428
StreamerSentinel 3 Hz
Winches / Tow points6 winches and 2 lead-in winches
Realtime Source QCArgus Source QC
Onboard Streamer QCReveal

Arrangement/ Accommodation

Cabin Types8 Single Cabins
36 Double Cabins
Total44 Cabins and 80 Berths
Conference Room1 Conference Room
Recreational Room2 Day Rooms and 1 Gym

Equipment & Certification

Helicopter Deck Rating1A1 HELDK D 19.5m - 9.3t
Fire Fighting2 X Foam Monitors AFF Foam System
Non Directional BeaconDS-410 Homing Beacon
Ship/Air CommunicationAirband VHF ICOM A6E
Motion Weather InfoHMS

Safety Equipment

Mob BoatSpringer MP741
EPIRB1 x Jotron Tron SX and 1 x Jotron Tron 40S
Life Raft10 x 25 Person
Seismic WorkboatDavit only