ARKeX, UK-based provider of geophysical imaging services, has started a 6712 line km marine gravity gradiometry offshore Guinea Bissau survey using its proprietary BlueQube system on behalf of a consortium led by Svenska Petroleum Exploration.
The West African republic has seen increasing exploration activity over the past few years with several exploration wells having been drilled. Svenska holds licences in Block 2 (which includes the Sinapa oil discovery determined to have a P50 STOOIP of 240 million barrels) and Blocks 4A and 5A. The ARKeX survey will aim to give Svenska a better understanding of the extent and shape of the salt in the vicinity of both the Sinapa discovery and other identified prospects.
Svenska have also commissioned and a 1600 Km2 3D seismic survey to be acquired by the PGS Ramform Challenger vessel. The BlueQube marine survey and the 3D Seismic will be combined to constrain the extent of the salt and de-risk the positioning of future wells on prospects already identified within the blocks. Paul Versnel, ARKeX VP Eastern Hemisphere, said: ‘This will be our third BlueQube marine survey in West Africa. The application of gravity gradiometry is gaining increasing acceptance in these challenging areas by providing critical information on the morphology of salt and carbonates to improve seismic imaging.’
ARKeX recently completed a BlueQube Marine gravity gradiometry survey on behalf of CGGVeritas over 9000 km2 of the Zone Sud area offshore Gabon.
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