1-Aug-22-2025-09-29-15-8462-PM
S-Class

Ramform Sovereign

Ramform Sovereign is one of the most efficient seismic acquisition vessels in operation. Part of the Ramform S-Class, she is equipped for multisensor, broadband acquisition using TGS GeoStreamer® technology and is capable of towing up to 22 streamers.

Designed for endurance and high productivity, Sovereign combines configuration flexibility with a robust and fuel-efficient power plant. Her propulsion and energy systems meet DNV CLEAN standards for low emissions and environmental performance. The vessel features significant built-in redundancy, including dual engine rooms that are fully separated to ensure continued operations in the event of system failure. This design supports stable, high-capacity seismic acquisition across a range of offshore conditions.

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Power & Propulsion

A thrust capability of 23 MW
Source Capability

Source Capability

Powered by Triple-Source Bolt Airguns with 2,820 and 3,280 cubic inch arrays
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Receiver Technology

Full GeoStreamer support
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Streamer Capacity

Able to tow a maximum of 22 streamers
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Length & Breadth

Vessel size of 102.2 m x 40 m
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Draft

7.4 m mean draft
 

Vessel Specifications

Attribute Details
Owner TGS
Maritime Operator TGS
Flag Norway
Port of Registry Oslo
Built Aker Yards, Norway
Year Built 2008
Vessel Classification DNV
Length 102.2 m
Width 40.0 m
Draft 7.4 m
Streamers Up to 20
IMO 9390460

Our Fleet

  • Ramform Titan
  • Ramform Atlas
  • Ramform Tethys
  • Ramform Hyperion
  • Ramform Sovereign
  • Ramform Vanguard
  • Ramform Victory
  • Support Vessels

Ramform Titan

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T-Class

Ramform Titan

Launched in 2013, Ramform Titan delivers high-capacity seismic acquisition with fast deployment of up to 24 steerable streamers and steerable sources. Fully integrated with GeoStreamer technology and built for redundancy, she offers reliable, high-efficiency performance in a range of offshore environments.

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Ramform Atlas

Atlas 860 x 484

T-Class

Ramform Atlas

Built in 2013, Ramform Atlas supports dense, high-quality seismic acquisition with 24 streamer reels, 22 tow points, and advanced source handling. Fully equipped with GeoStreamer technology, she is engineered for safe and efficient operation in variable offshore conditions.

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Ramform Tethys

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T-Class

Ramform Tethys

Delivered in 2016, Ramform Tethys features 26.4 MW propulsion, twin engine rooms, and automated handling for continuous operation. With 24 streamer reels and steerable sources, she is built for high-density 3D and 4D seismic surveys in demanding offshore environments.

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Ramform Hyperion

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T-Class

Ramform Hyperion

Built in 2017, Ramform Hyperion is designed for sustained seismic performance with 24 streamer reels and six source booms. Fully integrated with GeoStreamer technology, she enables efficient acquisition of large-scale 3D and 4D surveys.

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Ramform Sovereign

1-Aug-22-2025-09-29-15-8462-PM

S-Class

Ramform Sovereign

Launched in 2008, Ramform Sovereign is a high-capacity vessel equipped with GeoStreamer technology and capable of towing up to 22 streamers. She features low-emission propulsion, dual engine rooms, and a flexible layout for extended offshore operations.

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Ramform Vanguard

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V-Class

Ramform Vanguard

Built in 1999, Ramform Vanguard continues to deliver high-density seismic acquisition with full GeoStreamer capability. She is proven in advanced 4D and UHR 3D surveys, making her a reliable platform for complex exploration and offshore wind projects.

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Ramform Victory

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V-Class

Ramform Victory

Also launched in 1999, Ramform Victory is equipped for advanced seismic operations, towing up to 20 streamers. Outfitted with broadband GeoStreamer technology, she has built a strong record of delivering consistent, high-quality data across global projects.

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Support Vessels

Thor-magni-ATL

Other

Support Vessels

TGS uses modern seismic support vessels for offshore logistics, refueling, and crew changes. Four purpose-built vessels from PF Thor meet TGS specifications, while additional support is provided through long-term agreements with other trusted suppliers for extended offshore operations.

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Let’s Discuss Your Acquisition Needs

With the industry’s most diverse fleet and integrated expertise, from survey design and acquisition to seismic data imaging, TGS delivers trusted, tailored solutions for complex exploration challenges.

Learn More About Our Fleet

Discover the capabilities, configurations and proven performance of our diverse fleet. Built for reliability and efficiency, our vessels are ready to meet your exploration needs, anywhere in the world.

Start the Conversation

Every project is different. Talk to a TGS expert about your specific acquisition requirements. With decades of trusted experience and integrated capabilities, we’ll help you design the right solution from the start.

Manager Maritime Operator Flag & Port of Registry Shipyard & Year Built Vessel Classification Dimensions (Length x Width) Draft
Thor Ltd PGS Bahamas, Nassau Besiktas Shipyard, Turkey, 2015 DNV 57.6 m x 14.5 m 7.2 m