West Equatorial AfricaSPAN™ is a new Multi-Client program offshore Ghana with ~5,500 km of new SPAN 2D seismic data. The data, acquired in 2018 has a full Time and Depth processing broadband workflow applied to it. This was completed in 2019. Ghana is an emerging area with significant potential, and this industry funded program is part of a major regional framework of data that ION has proposed across the Equatorial Africa area.
Ghana completed its first competitive bid round across the offshore Tano Basin in 2019 and plans to announce future bid rounds. This new dataset is well positioned to assist in future bid rounds.
Ghana is a well-known player in the West Africa oil and gas sector. With new projects coming online and a stable geopolitical climate, Ghana presents an attractive business environment for long-term investment. Ongoing exploration since initial major discoveries has led to eight deepwater and ultra-deepwater discoveries in Ghana over the past five years.
Jubilee is currently Ghana’s largest oil field, with recoverable reserves amounting to 1.2 billion barrels of oil. It has now reached production levels of 120,000 barrels per day, with plans for a future production increase to 150,000-160,000 barrels per day. The nearby TEN complex of fields also started production in 2016.
Ghana is a part of the Equatorial Transform Margin, formed in the Early Cretaceous as a result of transform faulting between Africa and South America, eventually leading to a break-up. Generally three phases are defined: 1. Pre-transform (Late Proterozoic to Late Jurassic), 2. Syn-transform, including rifting and compressional events (Early Cretaceous) and 3. Post-transform (Late Cretaceous to Holocene).
Successes within the province have included two main types:
- Syn-rift plays of the Lower Cretaceous with reservoirs in Barremian to Albian aged clastics, mainly restricted to the shelfal areas and sourced from Aptian and older shale units.
- Post-rift slope and basin floor fan complexes with clastic turbidite reservoirs of mainly Late Cretaceous age, largely sourced by the regional Cenomanian/Turonian shales.
- With over 145,500 km offshore Africa, ION brings extensive imaging experience to utilize the appropriate technologies from our broad toolkit to this equatorial program
- Deep tow acquisition and broadband processing to enable superior deep imaging
- West Equatorial AfricaSPAN is complimented by our Greater BrasilSPAN datasets on the conjugate margin of Northern Brazil
The West Equatorial AfricaSPAN Program was developed in partnership between ION, Geoex and Ghana Geophysical with support from the Petroleum Commission, Ghana