Kizomba A

Kizomba A Oil Project Profile

The Kizomba A oil project is located in Block 15, offshore Angola, in the Congo Basin. The block is situated approximately 320 kilometers (200 miles) offshore in the Atlantic Ocean[5|.
The coordinates for the project are approximately -6.309, 11.092 (WGS 84).

The project is operated by Esso Exploration Angola, a subsidiary of ExxonMobil.
The partners in the project include ExxonMobil (40%), Eni S.P.A. (20%), BP (26.67%), and Equinor (13.33%).

ExxonMobil was awarded Block 15 in 1994 as part of the Angolan government's first tranches of deep-water acreage offerings.
The project involves the development of the Hungo and Chocalho oil fields, which are part of the larger Kizomba field complex.
Wildcat drilling between 1997 and 2002 resulted in several discoveries, including those that make up the Kizomba A project.

Production from Kizomba A began in August 2004, with an initial production rate of more than 130,000 barrels per day (bpd). The target production rate is 250,000 bpd.
The project is expected to recover approximately one billion barrels of oil from the Hungo and Chocalho fields.

The Kizomba A project utilizes a tension-leg platform (TLP) and a floating production, storage, and offloading (FPSO) vessel.
- The TLP is located in approximately 1,250 meters (4,100 feet) of water and weighs around 35,000 tons. It includes two 6,000-ton topsides modules, a 7,500-ton drilling rig, support modules, living quarters for 100 people, and 36 well slots.
- The FPSO, built by Hyundai Heavy Industries, has a storage capacity of 2.2 million barrels of crude oil and is capable of processing 250,000 barrels of crude oil per day. It measures 285 meters (935 feet) long, 63 meters (207 feet) wide, and 32 meters (105 feet) high.

The primary drive mechanism for the relatively shallow reservoirs is waterflood, with the injection of associated gas early in the project life.
Production is via dry trees from the TLP, with associated subsea facilities for injection wells. Oil is produced to the FPSO, which offloads to tankers via a nearby catenary anchor-leg mooring buoy.

The hydrocarbons in the Kizomba A project occur in combination structural-stratigraphic traps.
The reservoirs range from 500 to 1900 meters below the mud line and consist of high-quality, deep-water channel sandstones.
The large north-trending structures are a result of Oligocene-Miocene extension with associated movement of Aptian salt, culminating in middle Miocene to recent diapirism.

The estimated recoverable hydrocarbons from the Kizomba A project are over one billion barrels of oil.
The production design capacity is approximately 91.25 million barrels per year.

Several contractors were involved in the development of the Kizomba A project, including Heerema for the floating drilling platform, Hyundai Heavy Industries for the FPSO, Saipem for the risers and flowlines facilities, and others for various subsea and surface facilities.

The project involved significant investment, with the development costing an estimated $3.2 billion.
The project also included contracts for in-country fabrication, logistics support, training, and development of Angolan personnel, contributing to local economic development.