Geosciences

CGG, TGS extending Norwegian North Sea OBN coverage

Dec. 22, 2022

CGG and TGS will jointly conduct acquisition and imaging of a dense ocean-bottom node (OBN) multiclient seismic survey in the Sleipner Area of the Norwegian North Sea.

The Sleipner area embraces the gas and condensate fields Sleipner Øst, Gungne and Sleipner Vest. The Sleipner installations are also processing hydrocarbons from the tie-in fields Sigyn, Volve, Gudrun and from 2017 also rich gas from Gina Krog.

Offshore staff

OSLO, Norway/MASSY, France — CGG and TGS will jointly conduct acquisition and imaging of a dense ocean-bottom node (OBN) multiclient seismic survey in the Sleipner Area of the Norwegian North Sea.

The location will be directly south of the Utsira OBN survey and will cover an additional 1,201 sq km area under receivers (AUR), increasing contiguous multiclient OBN coverage in the region to 3,278 sq km AUR.

This is a mature production province that includes the Sleipner East, Sleipner West, Gina Krog, Volve and Utgard fields, plus surrounding infrastructure-led exploration areas with potential tiebacks to existing infrastructure.

TGS will operate the acquisition phase while CGG will apply its OBN processing and imaging technology, including time-lag full-waveform inversion, to generate a 3D volume designed to improve resolution and structural definition of the region’s complex geology and reservoirs.

Acquisition will start in June 2023, with work on final processed results due to be completed by the end of third-quarter 2024.

12.22.2022