Jubilee field

Ghana’s world-class Jubilee field was discovered in 2007 by the Mahogany-1 (M-1) and Hyedua-1 (H-1) exploration wells.

The two wells were drilled some 5 km apart and intersected large continuous accumulations of light sweet crude oil. The M-1 and H-1 wells discovered large net pays of 95m and 41m respectively in high-quality stacked reservoir sands. The Jubilee field straddles the West Cape Three Points and Deepwater Tano licences.

GH_map_jubilee_713x476

   

In July 2009, the Minister of Energy approved the Phase 1 Plan of Development which included the use of an FPSO with a facility capacity of 120,000 bopd. In December 2010, the field came on-stream.

In July 2009, the Minister of Energy approved the Phase 1 Plan of Development which included the use of an FPSO with a facility capacity of 120,000 bopd. In December 2010, the field came on-stream.

The Jubilee Phase 1A development project, designed to increase production and recover additional reserves, was approved by the Government of Ghana in January 2012. Phase 1A consisted of eight additional wells which included five producers and three water injectors. 

Turret remediation project

The Turret Remediation Project is close to completion. This pioneering and unique project, which included the first ever remediation of this type at sea, required the FPSO Kwame Nkrumah to be shut down twice in the first half of 2018 for work to stabilise the turret bearing for periods of 19 days and 21 days respectively. In December 2018, the FPSO was successfully rotated to its new heading of 205 degrees and subsequently spread-moored.  

The JV Partners have also agreed to install a Catenary Anchor Leg Mooring (CALM) buoy for offtake from the FPSO and a contract award has been made. The installation of the CALM buoy is likely to take place in 2020 and is not expected to affect production.

Production performance

Gross production for 2018 averaged 78,000 bopd (net: 27,700 bopd) which increases to 36,300 bopd (net) after including 8,600 bopd of net production-equivalent insurance payments. Production from Jubilee was slightly lower than expected. This was due to downtime related to work on the gas compression system in the first half of 2018 and some minor facilities issues towards the end of the year, which have since been resolved.

Greater Jubilee Full Field Development Plan

The Government of Ghana approved the Greater Jubilee Full Field Development Plan in October 2017, allowing Tullow and its Joint Venture Partners to prepare for a multi-year incremental drilling programme to maximise and sustain oil production and gas export. 

Tullow has two rigs operating in Ghana, the Maersk Venturer since March 2018 and the Stena Forth which commenced operation in October 2018. These rigs are allowing simultaneous drilling and completion activity across the TEN and Jubilee fields. The drilling programme is running to plan with four production wells and two water injector wells expected to be completed by the end of the year and gross production expected to increase to around 180,000 bopd in early 2019.

Page last updated: 22 February 2019