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CGG launches phase two of multi-client 3D survey in the Northern North Sea

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Oilfield Technology,

CGG has announced phase two of its multi-client 3D survey in the Northern North Sea, which will expand on the phase one acquisition initiated in 2020 to add a second azimuth over CGG’s existing Northern Viking Graben (NVG) multi-client 3D survey and extend coverage into the UKCS.

Separately, Shearwater GeoServices Holding AS has said that it has been awarded a 3D survey by CGG in the NVG area offshore Norway.

Commencing in early May and continuing throughout the North Sea season, the 2021 phase two acquisition will add approximately 8000 km2 of new data in an E-W direction. Similar to the 2020 phase one, multi-component technology will be used for the acquisition, and this new data will be processed together with the existing N-S data, using CGG’s latest velocity modelling and imaging technology, to produce a dual-azimuth volume.

As already confirmed by initial results from the 2020 phase one acquisition, the added azimuth will enable CGG’s advanced proprietary processing to address and improve the imaging of the multi-directional fault patterns prevalent in the region. Improved resolution will help resolve complex and marginal reservoir stratigraphy.

Fast-track data from the phase two acquisition are expected to be available by the end of 2021, and final processed data during the second half of 2022.

Sophie Zurquiyah, CEO, CGG, said: “With phase two of our planned multi-year project, CGG continues to follow its strategic path of expanding and enhancing its data library in mature and prolific hydrocarbon regions. This expansion draws on CGG’s extensive understanding of the Northern Viking Graben and builds on our 44,000 sq km of existing coverage in the Northern North Sea. Early results from the 2020 phase one acquisition demonstrate that, with CGG’s superior imaging, the new data will further de-risk existing fields and unlock the significant remaining near-field potential.”

“This award confirms the strong relationship we have with our strategic partner CGG and we look forward to executing this survey with the highest level of quality and HSE commitment as part of our client’s multi-year project,” said Irene Waage Basili, the CEO of Shearwater GeoServices. “With the addition of this award to our backlog, we are now experiencing increasing demand for Shearwater’s multisensor vessels for the upcoming 2021 season.”

Read the latest issue of Oilfield Technology in full for free: Oilfield Technology's November/December 2020 issue

The November/December issue of Oilfield Technology begins by reviewing the state of the North Sea before moving on to cover a range of topics, including Drilling Technologies, Deepwater Operations, Flow Control.

Contributors come from Varel Energy Solutions, Gyrodata, Clariant Oil Services, Drillmec and many more.

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