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Sercel launches Sentinel HR

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Oilfield Technology,

CGG has announced that Sercel has launched Sentinel HR, a high-resolution solid streamer designed to meet the specific imaging needs of shallow-target applications, such as oceanology, civil engineering and reservoir characterisation, as well as high-resolution 3D (HR3D) seismic surveys for detailed mapping of geological features.

The streamer has been developed with a close channel separation of 3.125 m to achieve reliable and cost-effective high-resolution surveys. Recent enhancements available in Sercel’s new-generation Seal 428 marine seismic recorder allow a higher channel count, enabling up to 6 km of Sentinel HR to be deployed with full data and power redundancy to ensure non-stop acquisition, opening up new possibilities for HR3D survey configurations.

Delivering the best signal-to-noise ratio and high-quality pressure measurements from its hydrophone sensors, the Sentinel HR meets the challenges of high-resolution surveys, enabling the detailed imaging of complex subsurface geology.

The Sentinel HR adapts to all types of survey spreads, from comb deployment to larger configurations integrating the Nautilus® steering system. In addition, the Sentinel HR can also provide marine mammal monitoring when combined with QuietSea™, Sercel’s revolutionary Passive Acoustic Monitoring (PAM) system, which is seamlessly integrated into the seismic streamers.

Pascal Rouiller, Sercel CEO, commented: “Sercel’s Sentinel HR is a robust new member of our Sentinel product family that will help to achieve a better understanding of subsurface geology for a broad range of industries. Built on field-proven technology recognised by the global seismic industry, the Sentinel HR is a cost-effective and powerful tool for both exploration and field development that will meet the intrinsic requirements of a wide range of specific shallow-target market applications.”

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