MASSY, France – CGG is preparing for phase three of its dual-azimuth multi-client 3D survey in the northern North Sea, with Shearwater GeoServices’ SW Amundsen vessel due to start the five-month acquisition campaign in May.
Phase three will add around 9,000 sq km (3,475 sq mi) in an east-west direction to data acquired during phases one and two in 2020 and 2021, providing a second azimuth over CGG’s existing Northern Viking Graben 3D survey and extending coverage into UK waters. The survey is supported by industry pre-funding.
As with phases one and two, multi-component technology will feature in the acquisition program, with the results processed along with the existing North-South data, using the company’s latest velocity modeling and imaging technology, to produce a dual-azimuth volume.
The additional azimuth, CGG added, allows the company’s proprietary imaging process to address and improve images of multi-directional fault patterns typical of the region. Improving the resolution should in turn help to clarify complex and marginal reservoir stratigraphy.