Chissonga FPSO and TLP to be tendered separately
Maersk Oil and Gas A/S (Maersk) from Denmark, the national oil company Sonangol from Angola and Odebrecht from Brazil are proceeding to the selection of the contractors to be invited to bid on a floating, production, storage and offloading (FPSO) vessel and a tension leg wellhead platform (TLWP) to turn in production the Chissonga crude oil field offshore Angola.
Lying just beyond the Africa West Coast Continental Shelf by 1,500 meters of water depth, Chissonga belongs to the Block 16 in the lower Congo Basin, 138 kilometers from shore, in the north of Angola.
Maersk started the exploration in Angola in 2005 in taking 50% interest in the Block 16.
Maersk is currently proceeding to additional 3D seismic acquisition and exploratory drilling to be completed by the end of the year.
In 2012, Maersk performed the first pre-salt discovery with Azul in the Block 23 in the south of Angola.
- Sonangol 20%
Doris completed FEED and provides Chissonga PMC
This Chissonga FPSO should have the capacity for the:
- Production of 150,000 barrels per day (b/d) of crude oil
- Injection of 200,000 b/d of water
- Re-injection of 235 million cubic feet per day (cf/d) of the associated gas
For this converted FPSO the competition for a chartering contract will be concentrated on:
After the completion of appraisal wells such as Chissonga-3, the larger quantity of reserves and complexity of the field led Maersk and its partners to review this all-subsea scheme.
In conclusion and in the context of uncertainty on Chissonga reservoir, Maersk and its partners preferred the Kizomba solution associating a tension leg wellhead platform (TLWP) with the FPSO as it should provide higher flexibility for further development than the all-subsea solution originally considered.
This conceptual modification of Chissonga has caused some delay in the project development but now Maersk and its partners Odebrecht and Sonangol are ready to close the bidders list on the TLWP including:
- Houston Offshore Engineering with Hyundai Heavy Industries
- McDermott and FloaTec with Keppel Fels
This TLWP should have to support 15 production wells and 15 water injection wells.