Mafumeira/Mafumeira N

Location and Geology

The Mafumeira Field is situated 24 kilometers offshore from the Cabinda Province in Angola, in approximately 60 meters (200 feet) of water.
The field is part of Block 0, which spans over 2,100 square miles and includes 21 fields in Area A and Area B.

The Mafumeira Field was discovered in 1998.
The first phase of development, Mafumeira Norte, began production in July 2009, three months ahead of schedule. This phase involved the installation of a wellhead platform, and production was connected to the Kungulo water injection platform (KWIP).

Production: Mafumeira Norte reached peak production of 30,000 barrels of crude oil and 30 million cubic feet of natural gas per day, expected by 2011.
Infrastructure: The platform is connected to KWIP through 14 wells. Additional infrastructure includes the Takula Gas Processing Platform and upgrades under the Greater Takula infrastructure project to improve gas management and water treatment.
Contractors: Sonamet Industrial, an Angolan oilfield fabrication company, was awarded the EPCI (engineering, procurement, construction, and installation) contract for the platform.

Expansion Phase: Mafumeira Sul is the second stage of development of the Mafumeira Field, expanding on the success of Mafumeira Norte.
Production Capacity: The project has a design capacity of 150,000 barrels of liquids (crude oil and liquefied petroleum gas, or LPG) and 350 million cubic feet of natural gas per day.
Facilities: The project includes two wellhead platforms (Sul and Centro), a main production and processing facility, a living quarters platform, and approximately 75 miles (121 kilometers) of pipelines. It also involves 50 wells (34 producing and 16 water injection).
Production and Export:
- Crude oil is exported to the onshore Malongo Terminal in Cabinda.
- LPG is separated onsite, converted, and exported via pipeline to the Sanha floating production, storage, and offloading (FPSO) vessel.
- Associated natural gas is transported to the onshore Angola Liquefied Natural Gas (ALNG) plant in Soyo using the Congo River Canyon Crossing Pipeline.

Significant portions of the fabrication work for Mafumeira Sul were performed in Angola, including the jackets and piles for the platforms fabricated in Lobito, Porto Amboim, and Ambriz. Topsides for the wellhead platforms were also fabricated in Angola, while some modules were fabricated in Okpo, South Korea, and the living quarters building in Mexico.
The project aimed to expand the capabilities of Angolan fabrication yards, increase the knowledge of Angolan engineers, and add skilled employees to the Angolan workforce.

Chevron operates Block 0 and holds a 39.2% interest in the Mafumeira Field.
Other partners include Sonangol E.P. with 41%, Total with 10%, and ENI with 9.8%.

Pre-FEED and FEED: The pre-front end engineering and design (pre-FEED) was converted into a FEED contract awarded to AMEC in May 2010. AMEC performed the FEED work from its offices in Houston and Luanda.
First Production: Early production from Mafumeira Sul commenced in October 2016 through a temporary production system, with full production expected to ramp up through 2018.
Final Investment Decision: The final investment decision (FID) for the Mafumeira Sul project was made, with Chevron and its partners committing to the expansion.

The Mafumeira Sul project is part of Chevron's full field development program for the offshore Mafumeira oil and gas field, aiming to increase production capacity and support the advancement of Angola’s oil and gas industry.
The project has significant economic implications, generating new production and value for Angola, the partners, and Chevron Corporation.

Chevron and its partners are investigating further expansion opportunities in the southern Malongo area, indicating potential for additional field developments within Block 0.