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ExxonMobil – Kizomba FPSO – West Africa

Kizomba field lies in Block 15, offshore of Angola, marking one of the first tranches of deepwater acreage offered by the Angolan Government. The development consortium is operated by ExxonMobil’s subsidiary Esso Exploration Angola, which has a 40% stake in the field.

The partners also include Agip Angola (with a 20% share), BP Exploration (with a 26.67% share) and Statoil (with a 13.33% share). Sonangol, the Angolan state oil company, is the concessionaire.

Block 15 was allotted to ExxonMobil in 1994, with commissioning and first production commencing in 2003 from the Xikomba field. Productions from Kizomba A, Kizomba B and Kizomba C began in 2004, 2005 and 2008 respectively.

The first production from Phase I of the Kizomba satellites project was achieved in July 2012.

In 2001, Esso Exploration Angola started construction on the Kizomba A deepwater development.

Kizomba A is expected to recover approximately one billion barrels of oil from the Hungo and Chocalho fields at a target production rate of 250,000bpd. The project first began producing oil in August 2004 at a rate of more than 130,000bpd.

The field is operated by a combination of an ABB-designed 58,000t dry tree TLP and subsea completions, tied back to the Kizomba A FPSO. The dry tree unit is based on ABB’s ETLP design.

The FPSO was built at a cost of more than $800m by Hyundai Heavy Industries, and the target production is estimated to require a $3.2bn investment. By the end of 2008, Kizomba A had 29 production wells and one development well.

In June 2002 Esso began construction of the Xikomba deepwater development, also on block 15. First oil from the Xikomba field was produced in late 2003, making it the first oil production on Esso-operated block 15. Production is enabled through FPSO Xikomba, which was converted from the VLCC tanker Mosocean. In May 2011, ExxonMobil announced that production at the Xikomba field will cease as reserves have depleted. About 100 million barrels of oil have been recovered from the field.

FPSO Xikomba was upgraded and relocated to Eni’s block 15/06, under an agreement with SBM Offshore. The agreement was finalised in December 2011.

The refurbishment and upgrade contract for the Xikomba FPSO was awarded to Keppel Shipyard in April 2012. The project was completed in 2013.

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