CGG Provides Overview of East African Rift Basin

NPA Satellite Mapping, a unit of CGG GeoConsulting has launched the multi-client EARS BasinMap for exploration de-risking across the vast region of East Africa, from regional-to-prospect or play scale. The EARS Basin Map is part of a new NPA Mapproduct suite that offers world-leading satellite imagery-based geological mapping at different scales on either a proprietary or multi-client basis through PlateMap, BasinMap, BlockMap and FieldMap products.

“The EARS BasinMap provides an entirely new 1:200,000 scale geological map and database of the East African Rift System and integrates structural history, drainage analysis and sediment provenance”, CGG says in a release. “Compiled by expert interpretation of satellite optical imagery and topographic data (the latest Landsat 8 OLI and SRTM 1 DEM data),the data base extends across approximately 2.5 million km2 of East Africa taking in Kenya, Uganda, Tanzania, Rwanda, Burundi, Malawi and parts of Ethiopia, Mozambique, Zambia and the Democratic Republic of Congo. New Ventures & Exploration teams can use the EARS BasinMap for regional screening to rapidly gauge and understand the structural dynamics of ongoing rifting and predict the location of favorable sediment sequences with high reservoir potential.

“Across the under- and unexplored rift basins, where exploration data quality and quantity are limited, the EARS BasinMap provides a regional analysis of the timing and history of regional fault movement, uplift and erosion, which control sedimentation and accommodation space within the basins. The style and geometry of the rift-related structures in the region have an inherited relationship with the mapped basement trends, and control both compartmentalization of the rift basins and the drainage systems. The combined elevation data and map data provide valuable insight on geological evolution, source-to sink depositional systems and reservoir quality. When coupled with Seep Explorer (CGG’s on- and offshore seeps database) and Tellus (CGG Robertson’s strategic new ventures tool), structural, reservoir and source risk can be even further reduced in this developing hydrocarbon province”.

CGG boasts that this product’s “rich, geological database is easily accessed and interrogated through NPA Satellite Mapping’s proprietary ArcGIS*Onshore Analyst Tool (OAT), which allows user-driven queries of thematic data sets, encompassing fully referenced lithologies, local names, stratigraphic age, and type and timing of structures.Once leads and prospects have been identified, the database can be leveraged to provide the context for more detailed block studies, which can include more advanced section building, geological modeling and fieldwork, and for seismic planning. The EARS BasinMap is available for licensing for either the entire East Africa region or cropped large sub-regions”.


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