Sercel

The Sercel Group designs and provides high technology solutions for marine environments in the field of:
- Underwater Acoustics
- Marine seismic equipment
- Airgun seismic sources
- Navigation solutions

Acoustics | Beacons & Buoys | Seismic Equipment | Sensors | Towed Arrays & Bodies | Underwater Communications

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Title G Gun II Description By acquiring Sodera and Seismic Systems Inc., Sercel benefits from the experience of more than 30 years of design and manufacture of marine seismic sources. These pioneering companies invented and patented several marine seismic sources and various pieces of peripheral equipment widely used by the industry through the years. The product range includes 3 families of Guns including the G. GUN, the GI GUN, and the WaterGun. The G. GUN family, generates signal by the sudden expansion of very high pressure air into the water. The G. GUN family includes a collection of exemplary products with great reliability, strong performance and easy adaptability. These compact air Guns are designed for marine seismic acquisitions, crustal studies and VSP surveys. Benefits of using the G. GUN : Single type of airgun for the entire range of volumes(40 in3 to 520 in3) High degree of stability Inexpensive and easy to assemble/disassemble Safe handling Built to be continuously operated under up to 3,000 psi (210 bars) air pressure

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Title Marine Navigation Description Marine navigation

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Title Mats 3G Description MATS 3G is an underwater acoustic modem that offers a single solution for all underwater communication needs: • State-of-the-art DSP (Digital Signal Processing) technology to ensure long-range and reliable communication • Robust and versatile innovative multi-modulation system to fit a wide range of applications and environments • Multi-sensor, high-data-rate antenna receiver available with the Trident option • Network configuration capability • Stealth communication capability

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Title MicrObs Description MicrOBS is a new generation of autonomous deep 4C Ocean Bottom Seismometer. Operated from any vessel, MicrOBS dives by itself to reach the sea floor to begin the seismic acquisition. Integrating a combination of 3-C low distorsion geophones plus an hydrophone, it will record P-S waves up to 24 days. At any time, by sending a specific signal from the vessel, MicrOBS will release its anchor to get up to the surface. Sending a radio signal and activating a flash light, it will be retrieved easily to download its data. Benefits of using MicrOBS: Controllable release from surface 4-c seismic sensors Multi localization devices High Autonomy External connectivity High Reliability

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Title Nautilus Description Nautilus® is a totally integrated system for acoustic positioning of seismic streamers and sources and for control of seismic streamers. It includes 3 sub-systems: Streamer depth and steering controller Acoustic transceivers Advanced redundant telemetry sub-system Nautilus® has been designed in order to offer SEAL users an efficient solution for full acoustic bracing and cable control for 3D and 4D streamer configurations. Features and Benefits: Streamer leveling & streamer steering in a single device Single in-line canister for all functions: leveling, steering, acoustics, telemetry In-line acoustic transceivers Powered by the streamer with internal rechargeable battery for operation during streamer maintenance Easy latch/unlatch leveling and steering wings Redundant telemetry and power Acoustics based on a patented modulation and time derivation scheme allowing standard deviation to be determined for each range measured Flexible on-board controller: Self-contained Graphical User Interface for full control of acoustic network and depth and steering controllers Fully integrated with all Sercel on-board products such as SeaProNav, Seal, e-SQCPro etc. Open interface for integration with any navigation system

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Title Seal 428 Description The Seal 428 is the new large capacity and high-resolution seismic data acquisition system designed for marine towed streamers acquisition. It derives its high reliability and versatility from SERCEL’s extensive experience in cable telemetry systems and from the use of the most advanced electronics and workstation technology. The Seal 428 supports extremely long offset recording as well as an unlimited streamer number for increased productivity and data quality. The Seal 428 system has been designed to match the industry’s expectations for true zero dead time continuous recording, crucial for multi-vessel acquisitions such as Wide Azimuth and undershooting. The benefi ts from the most advanced software technology include a Client/Server architecture which allows the system to be fully accessible through the customer’s intranet or via a secured internet login for monitoring or full control purpose. Taking advantage of Sentinel®, the industry’s only true solid streamer, and of Nautilus®, Sercel’s streamer guidance and control system, and as a result of the outstanding noise performance when using this combination, the Seal 428 offers the highest effi ciency and best quality seismic data recordable today.