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Geology & Geophysics

This expansion will add 2,248 sq km of 3D data. (Image source: TGS)

Energy data and intelligence provider, TGS, has expanded 3D seismic coverage for its Benin MegaSurvey, in collaboration with Societe Nationale des Hydrocarbures du Benin (SNH-B)

This strategic initiative aims to deepen understanding of the region’s subsurface geology and unlock its untapped hydrocarbon potential. 

Previously, TGS had also acquired data from countries such as Tanzania and Liberia

With this expansion, the company will add 2,248 sq km of high-quality conventional 3D seismic data to the existing Benin MegaSurvey. The expanded coverage will span from the continental shelf to the slope, offering a comprehensive view of the area and revealing previously untapped exploration potential.

Seamless data integration

Besides the seismic expansion, TGS has also incorporated 10 wells into its advanced tool, RockAVO atlas, which integrates seismic data with well information, offering explorers a powerful suite of capabilities. It features the Interactive Rock Physics Atlas, which allows to explore rock physics models, analyse elastic properties, and visualise seismic AVO responses for detailed subsurface insights.

Explorers can access a wealth of well logs, rock physics models, and data atlases in a single platform, streamlining exploration workflows through its Well Data Integration platform.

While there is a Scenario Testing facility that helps screen for geological analogs, and assess lithology, fluid content, and porosity to de-risk plays and enhance decision-making, the tool also ensures data accuracy and seismic image integrity with enhanced Quality Control features. 

Exploration interests in Benin have been growing lately with companies such as Rex International Holding and  Zenith Energy operating in the Seme Field

The survey will be conducted by the dual ROV-equipped SW Tasman. (Image source: Shearwater)

Shearwater Geoservices Holding AS has signed an ocean bottom node (OBN) project contract with TotalEnergies in Angola

The deepwater OBN survey will be conducted by the dual remotely operated vehicle (ROV)-equipped SW Tasman, the fit-for-purpose seismic node laying vessel which was converted in 2023, and SW Gallien as source vessel. A three-month-long operation approximately, the survey will commence in January 2025, with Shearwater deploying its compact high-endurance Pearl node in Block 32 over the Louro and Mostarda fields. The company has previously completed a 4D streamer survey in the region for TotalEnergies. 

TotalEnergies keeps cementing its presence in Angola as the major reached a US$6bn final investment decision (FID) on the Kaminho Deepwater Development in May, marking the first major deepwater development in the Kwanza Basin.

Introducing deepwater OBN

Shearwater CEO, Irene Waage Basili, said, "We are very satisfied with the performance of our SW Tasman/Pearl OBN platform which has been in continuous operation since its introduction last year. We are pleased to see one more key client use this unique platform to introduce deepwater OBN to new areas of their operations." 

Last month, the company has also secured a 4D seismic monitoring contract for the Jubilee field in Ghana, operated by Tullow Ghana Ltd.