Norway-based geoscience data firm TGS has acquired a 3D multi-client survey offshore Sierra Leone.

The survey, Sierra Leone Block 4A Extension, will add 1,000km² of new 3D data to the current 6,268km² 3D data library in the West African nation.

"This survey extends our current data coverage in an important and prospective area."

TGS Eastern Hemisphere senior VP Stein Ove Isaksen said: "This survey extends our current data coverage in an important and prospective area. TGS has been active in acquiring data over the West Africa Transform Margin for the past decade and we are pleased with the level of customer support to continue our investment in this region."

The Norwegian firm is chartering the 12-streamer Polarcus Alima for the survey, which will secure funding from the oil and gas industry.

The company will carry out data processing, which will be unveiled in the first quarter of 2015.

TGS offers global geoscientific data products and services to the oil and gas industry to assist with licensing rounds and preparing regional data programmes.

The company also provides interpretation products, advanced permanent reservoir monitoring and data integration solutions.

Earlier this month, TGS acquired Snipe Phase 52, a new long-offset 2D multi-client survey in the ultra-deep water of the US Central Gulf of Mexico.

The survey will feature 12,000km of data, which compliments TGS’ existing library in the region, and will offer critical well connections to several recent discoveries.

TGS has also acquired 2D and 3D multi-client seismic data in North and South America, Europe, Africa, Asia and the Arctic.

Defence Technology