Marine Seismic Equipment Ecodesign - Sentinel®

Case Study

SD Sercel Sentinel Sentinel RD: an example of Sercel’s ecodesign approach


Raise marine seismic acquisition productivity while minimizing its environmental footprint.

Background: Pioneer in true solid streamer technology

Sentinel® was the first true solid streamer made available to geophysical contractors, providing the most advanced data quality while reducing the environmental impact of geophysical surveys.

Prior to the introduction of the Sentinel®, most streamer sections were filled with Isopar fluid, which is potentially harmful to the environment in the event of streamer damage. A typical 3D survey usually towed about 80 km of streamers filled with 100,000 liters of oil. In addition to the hazard inherent to any flammable material, Isopar-filled sections also presented a recycling challenge for customers as well as for CGG.


Sercel has adopted an ecodesign approach taking the environment into account right from the design stage through to production and the product’s end-of-life. This method defines the product’s environmental objectives, its impact on the field, and the product’s composition and specifications.

Launched in 2005, Sentinel® was quickly adopted by all major players in the industry. It is now the system of choice for complex operations including operations in very sensitive zones such as the Arctic. In June of 2012, Sercel launched a new generation solid streamer, the Sentinel RD®, adding the advantages of reduced weight and diameter to Sentinel’s unmatched reliability and outstanding data quality.


The Sentinel RD® reduces cable drag by 7%, allowing seismic vessels to lower fuel consumption during operations.

The 15% weight reduction also lowers shipping costs and associated greenhouse gases. In conjunction with the all-in-one Nautilus® streamer positioning and control system, the Sercel marine seismic portfolio significantly reduces in-fill and thereby overall survey time and energy consumption. 

Sercel implements a waste minimization strategy (reduce, re-use and recycle) designed to enable the preservation or recovery of raw materials when a product reaches the end of its life. Four Sercel sites currently manage the disposal of all marine seismic equipment: Sercel England (Alfreton - UK), Sercel Inc. (Houston - USA), Sercel Singapore and Sercel SA (Nantes - France). All of them actively participate in recycling materials through local companies.

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As the worldwide leader in the seismic acquisition industry, Sercel designs, manufactures and supports the most advanced seismic acquisition systems available.
Offshore - Sentinel Solid Streamers

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Best signal-to-noise ratio. Lowest frequencies. Most reliable 4D. Widest weather window. Broadband ready. For the most demanding applications, choose Sentinel.

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