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CGG wins 4D OBN imaging contract offshore Brazil

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Oilfield Technology,

CGG has been awarded a two-part ocean bottom node (OBN) seismic imaging project by PXGEO over the Sapinhoá Shared Reservoir in the Santos Basin offshore Brazil. The resulting data will bring improved geological insight to the asset operator, Petrobras, to assist with better management of oil recovery and production development.

Peter Whiting, EVP, Geoscience, CGG, said: “With our unequalled track record of successful pre-salt OBN projects, CGG is without doubt the world’s leading OBN seismic imaging company. Although imaging the pre-salt is always challenging, the experts at our dedicated Rio research center are recognized for their ability to develop technologies tailored to the needs of each individual project and deliver high-quality pre-salt 4D OBN results.”

The baseline 3D seismic survey acquired by the PXGEO Poseidon OBN crew, covering 575 km2, is already being processed at CGG’s Rio de Janeiro subsurface imaging centre. Its geoscientists are applying CGG’s latest proprietary imaging technologies, including time-lag full-waveform inversion, internal multiple attenuation and least-squares migration, to resolve challenging structural uncertainties in the pre-salt and gain better insight into the reservoir’s geomechanical behaviour. CGG will process the 4D monitor survey after its planned acquisition, again by PXGEO, in 2023.

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