# Seismic Vessels

**URL:** <https://forum.gcaptain.com/t/seismic-vessels/59777>\
**Category:** Offshore\
**Created:** [June 20, 2021, 7:45pm UTC](https://forum.gcaptain.com/t/seismic-vessels/59777 "2021-06-20T19:45:02Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ombugge](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/ombugge/32/11217_2.png) [@ombugge](https://forum.gcaptain.com/u/ombugge)\
**Post date:** [June 20, 2021, 7:45pm UTC](https://forum.gcaptain.com/t/seismic-vessels/59777/1 "2021-06-20T19:45:02Z")

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Early Norwegian Seismic survey vessel “Seis mariner”  
 ![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/c/7/c76f8c0e7109b74129c1f36c38ec0230e7331aa0.jpeg)

 ![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/5/e/5ecb56ac491585ca32545a12b5354e39796c73d1.jpeg)

 ![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/a/a/aac1c4b9a011338c85a9844c72bb3a200fdfeab3.jpeg)

Converted from cargo ship Ara, blt.1955:  
 ![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/f/b/fbd9921cbdb360a1a79def03ada05766d04aed31.jpeg)

[https://skipshistorie.net/Trondheim/TRH112NorCargo/Tekster/TRH11219670300000%20ARA.htm](https://skipshistorie.net/Trondheim/TRH112NorCargo/Tekster/TRH11219670300000%20ARA.htm)

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**Author:** ![ombugge](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/ombugge/32/11217_2.png) [@ombugge](https://forum.gcaptain.com/u/ombugge)\
**Post date:** [October 19, 2021, 8:04pm UTC](https://forum.gcaptain.com/t/seismic-vessels/59777/2 "2021-10-19T20:04:39Z")

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A bit of difference between the Seis Mariner and Shearwater’s Amazon Warrior:

 ![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/9/8/9805a2e316322951c5bc031b57811e379f2fee29.jpeg)  
[https://www.shearwatergeo.com/299/marine-acquisition/seismic-fleet/amazon-warrior](https://www.shearwatergeo.com/299/marine-acquisition/seismic-fleet/amazon-warrior)

She has just got a new contract off South Africa:

> **[Shearwater awarded major 3D survey in South Africa - Splash247](https://splash247.com/shearwater-awarded-major-3d-survey-in-south-africa/)**
>
> Shearwater GeoServices has been awarded a contract by an undisclosed client for a major 3D seismic exploration project in South Africa. The Norwegian offshore survey specialist said it will utilise the 2014-built vessel to acquire over 6,000 sq km of...

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<div class="post-metadata">

**Author:** ![ombugge](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/ombugge/32/11217_2.png) [@ombugge](https://forum.gcaptain.com/u/ombugge)\
**Post date:** [August 27, 2025, 11:38am UTC](https://forum.gcaptain.com/t/seismic-vessels/59777/3 "2025-08-27T11:38:03Z")

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![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/c/9/c969ea188bbc2b5174334492bd32d56213ad69f1.jpeg)

> **[Sanco selects shipyard for seismic vessel conversion ](https://www.rivieramm.com/news-content-hub/sanco-selects-shipyard-for-seismic-vessel-conversion-85917)**
>
> Former PGS research vessel will be retrofitted for the growing seismic source market

> [@](#):
>
> Vard said the work scope for this project includes installing a dynamic positioning DP2 system, significant structural modifications, and upgrades to existing seismic equipment. These upgrades will enhance the vessel’s operational capabilities and support Sanco’s strengthened position in the seismic and offshore markets.
> 
> “We did an extensive tendering between Norwegian yards,” said Sanco Shipping chief technical officer Tommy Bøe. “Vard Langsten was the most competitive.”

Ex PGS Apollo:

 ![image](https://us1.discourse-cdn.com/flex016/uploads/gcaptain_maritime_forum/original/3X/5/a/5a64b7fde8d55c4047ba40627a2b42e354b83c89.jpeg)

> **[Genuine Ship Design | Skipsteknisk](https://www.skipsteknisk.no/projects/archeive/research/st-321-pgs-apollo)**
>
> As independent ship design consultants Skipsteknisk offers you know-how and services that meet your needs and requirements in the best way. Each new ST-design enhances Skipsteknisk's worldwide reputation as an independent, experienced, reliable and...

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**Author:** ![DirtSailor](https://avatars.discourse-cdn.com/v4/letter/d/f1d935/32.png) [@DirtSailor](https://forum.gcaptain.com/u/DirtSailor)\
**Post date:** [August 27, 2025, 5:42pm UTC](https://forum.gcaptain.com/t/seismic-vessels/59777/4 "2025-08-27T17:42:42Z")

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The Ocean Star museum in Galveston has a neat little exhibit about seismic ships with a model vessel and a cut-open airgun on the first floor of the rig.

Their exhibit on tankers is a bit dated, though, with their model representing a ship that could well be a veteran of the Second World War ;p

> **[Energy Education Foundation – Ocean Star Museum – Energy Education Foundation](https://energyeducation.org/oceanstar/)**

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<div class="post-metadata">

**Author:** ![ombugge](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/ombugge/32/11217_2.png) [@ombugge](https://forum.gcaptain.com/u/ombugge)\
**Post date:** [August 27, 2025, 7:48pm UTC](https://forum.gcaptain.com/t/seismic-vessels/59777/5 "2025-08-27T19:48:00Z")

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> [@DirtSailor](#):
>
> Ocean Star

Looks very much like a Betlehem mat supported MODU of the type that was built both in Baumont Tx. and In Singapore from late 1960s and well into the 1980s.

I got my early rig experience on this type of rigs from 1974 onwards, attending during tows and in-field rig moves, doing condition surveys, issued tow approvals for long tows and attending load-out of two of them belonging to Teledyne on barges for transport to GOM already in 1975 and 76.

I first acted MWS, later as “Tow master & Rig mover” and as Marine Manager for a drilling contractor operating rigs of this (and other) type.
