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The global energy sector from a subsurface perspective

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High-Resolution Model Building in a Full-Azimuth Nodal Survey

Sandip Chattopadhyay, Gary Rodriguez, Tefera Eshete and Guy Hilburn; TGS
The velocity variation in the trench before and after the high-resolution tomography. Red line indicates the location of the line in Figure 2 on page 40. High-Resolution Image-Guided Tomography High-resolution image-guided tomography…

Priority onboard

Ed Hagar, Polarcus
Onboard processing: field geophysicist Andrey Seliverstov utilising the interactive map view. How to break the stereotype A priority service without compromise. Sometimes in an industry, we have to ask ourselves:…

Regional play types in the Mexican offshore

Cian O’ Reilly, James Keay, Alex Birch-Hawkins, Duncan Bate and Jennifer Halliday; TGS
Map showing the extent of the Gigante seismic in relation to the main geological features of the Mexican Gulf of Mexico. Structural styles and regional play types New seismic data…

The Namibe Basin: a clearer Image

William Reid and Avril Ashfield, PGS
Figure 1: Map of the Namibe and Benguela Basins and location of PGS survey. (Source: PGS) The Namibe Basin Compelling seismic evidence for a significant unexploited hydrocarbon province located offshore…

Finding More Gaveas in the Campos Basin and Beyond the Salt Domes…

Karyna Rodriguez and Neil Hodgson, Spectrum
Figure 1: Map showing the latest Gavea appraisal well discovery and the location of Spectrum’s 2D and 3D seismic database, which is available to evaluate pre-salt discoveries and identify on-trend analogue…

World Class Exploration Opportunities in Deepwater Mexico

Peter Abrahamson and Kenneth Mohn, MultiClient Geophysical ASA (MCG)
Figure 1: Kunah-1 well gas discovery (left in foldout). Figure 2: Possible Eocene target in open blocks (right in foldout). Figure 3: Deepwater stratigraphy and play elements. (Source: CNH.gob.mx) New…

Clari-Fi™ Broadband Processed 2D Seismic

Sindre Jansen, Will Bradbury and Bent Erlend Kjølhamar, TGS
High quality broadband improves visual and quantitative interpretation in Portugal and the Mid-North Sea High Recently, TGS delivered more than 120,000 km regional broadband data offshore Portugal (left) and in…

Namibia: Frontier exploration in West Africa

Pat Coole and Craig Koch, Petroleum Geo-Services (PGS)
Hydrocarbon Potential of Offshore Namibia In 2012 and 2013, PGS shot approximately 15,000 line km of broadband seismic data in the deep and shallow waters offshore Namibia, with a view…

The Gambia: the next major oil play?

Tony Pedley, Polarcus
Location of the Polarcus Block A2-A5 multi-client 3D seismic survey. Extension of a New Oil-Prone Fairway The SNE and FAN discoveries in neighboring Senegal have opened up a new oil-prone…

A Nigerian Renaissance

John Balch, Polarcus and Matt Lamont, DownUnder GeoSolutions
Full stack comparison at the target level. Legacy data versus the latest version of the pre-stack depth migration.   A clearer picture The Niger Delta is one of the most…

Offshore Somalia: East Africa’s oil frontier

Hannah Kearns, Jake Berryman, Neil Hodgson and Karyna Rodriguez, Spectrum
Somalia’s Exploration Journey Exploration in Somalia began onshore in 1956 with the drilling of the Sagaleh-1 well, followed by a number of wells drilled mostly in the north of the…