Offshore staff
LONDON – Afren has started front-end engineering design and fabrication planning for a new wellhead platform and production unit for the Okoro field extension offshore Nigeria.
Elsewhere off Nigeria, Afren will drill a further three production wells and a water injector at theEbok field for development of the Central Fault Block extension. The wells will target the LD1A and LD1B reservoirs containing 2P reserves of 38 MMbbl.
Following last year’s discovery at theEbok North Fault block, the partners are considering development options. They will likely drill the development wells from an extended West Fault Block platform and route production through to the existing mobile offshore production unit.
During 1Q 2013, the company completed the offshore Okwok-11 side track well after encountering 95 ft (29 m) of net oil pay in the “D2” reservoir. The newly acquired data, along with results of the Okwok-10 well and subsequent side track well, will be used to update the volumetric and optimized field development plan prior to submission to the Nigerian authorities later this year.
The most probable scenario is a dedicated production processing platform sharing the services of the Ebok FSO vessel 13 km (8 mi) to the west.
Offshore Tanzania
In Afren’s Tanga block offshore Tanzania, a 620-sq km (239-sq mi) 3D seismic survey was completed early this year. The focus of the data processing is on the deeper water prospectivity – Afren aims to optimize prospect selection ahead of planned exploration drilling. It expects to have the first fully processed 3D seismic cube in July.
The partners have identified a rig to drill the deepwater Calliope prospect and have a letter of intent to this effect with the rig contractor.
In Areas A and B offshore theSeychelles, Afren has completed the islands’ first 3D seismic acquisition program. This comprised two surveys, one covering 600 sq km (231 sq mi) on the southern portion of the license, which includes the Bonit prospect. The other, covering 2,775 sq km (1,071 sq mi), was over the northern section of the license area.
The partners are processing the new 3D data with existing 2D seismic to assess Tertiary, Cretaceous, and Jurassic prospectivity. Afren estimates prospective resources for the two areas at 2,800 MMboe.
5/16/2013
