French seismic player CGG has taken on a new project to deliver the largest ever ocean bottom node (OBN) multi-client survey to be carried out in the UK Central North Sea (CNS).

Expected to commence in early 2020, the multi-client seismic shoot is being supported by industry prefunding. Oil and gas firm BP is also partly pre-funding the survey, according to CGG.

Imaging deeper reservoir targets is a challenging condition in the CNS due to complex salt diapirism. The new survey will be able to overcome this situation by providing well-sampled, full azimuthal coverage with long offsets to enable precise imaging in challenging geological conditions, especially in a shallow water environment.

It will use CGG’s advanced imaging technology to provide a step-change in the quality of seismic image and reservoir characterisation. As part of the first phase of the multi-year programme, the company plans to acquire approximately 2,000km2 of OBN data.

CGG CEO Sophie Zurquiyah said: “We are pleased to initiate this exciting new OBN programme which will deliver unprecedented industry insight and lead to a step-change in development in this critical Central North Sea area.

“Our asset-light configuration enables us to best take advantage of key opportunities and fully leverage our core capabilities.

“The new data set will also complement CGG’s extensive high-quality Cornerstone towed-streamer data library in the area and support the UK Oil & Gas Authority’s strategy for Maximizing Economic Recovery.”

Due to its expertise in OBN processing, CGG has been qualified to launch this programme to bring new understanding of the geological and geophysical complexity in the CNS region.