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Jubilee Field

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Created on Sunday, 29 August 2010 10:26

 

 

JUBILEE FIELD VIDEO: Exploration and Development Activities offshore Ghana

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The Tullow operated Jubilee field, which straddles the Deep Water Tano (Tullow 49.95%) and the West Cape Three Points (Tullow 22.896%) licences, was discovered by the Mahogany-1 and Hyedua-1 exploration wells in 2007. The two wells were drilled five kilometres apart and intersected a large continuous accumulation of light sweet crude oil in excellent quality stacked reservoir sandstones.

 

Jubilee Field Unit AreaGross Resource Base

The Jubilee Unit Area is considered to have a gross resource base of 500 mmbo (P90) through a most likely 700 mmbo (P50) to an upside of 1,000 mmbo (P10). This resource base will be developed in several phases, of which Phase 1a is under way with first oil expected in Q4 2010.

 

Appraisal Well

Appraisal drilling continues to define the potential of the Greater Jubilee Area.

Six successful exploratory appraisal wells, Mahogany-2, Hyedua-2, Mahogany-3, Mahogany-4, Mahogany Deep-2 and Mahogany-5 have so far been drilled. Each of these discoveries has intersected considerable hydrocarbon columns. Mahogany-3, Mahogany-4, Mahogany Deep-2 and Mahogany-5 have also intersected potentially extensive underlying sands which will require further evaluation and appraisal.

In 2010, Tullow began a two well exploratory appraisal campaign in the southeast Jubilee Area. The first of these wells, Dahoma-1, was a bold down-dip well 11km away from Mahogany-3. Unfortunately the well was water bearing at this location and was Tullow's first unsuccessful well in Ghana after 12 previous successes. The next well, Mahogany-5, encountered 23 metres of net oil pay 2km eastwards of Mahogany-3. The potential resource range for the southeast Jubilee Area, which is currently under review, is 100 million barrels (P90) to an upside 500 million barrels (P10) of oil.

Flow tests have been performed on Mahogany-1&2 and Hyedua-2 confirming that the Jubilee field is a highly productive and well-connected reservoir. In addition, a water injection test was conducted during the fourth quarter of 2009 demonstrating well communication over a distance of up to six kilometres with injection rates in excess of 23,000 barrels of water per day. The wells have demonstrated that they are capable of delivering in excess of 20,000 barrels of 37.6° API quality crude oil per day.

 

 

KEY FACTS

Jubilee has exceptional field characteristics including a large continuous accumulation, high well deliverability and light oil.

 

  • Significant associated gas resource ~800 bcf
  • Gross booked reserves of 490 million barrels of oil
  • High quality light oil – 37.6° API
  • Well deliverability potential of over 20,000 bopd
  • Phase 1 first oil scheduled for the fourth quarter of 2010
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PHASE 1 DESIGN SCOPE

  • FPSO tanker conversion with 1.8 million bbl storage

  • Production capacity – 120,000 bopd (9 wells)

  • Water injection capacity – 230,000 bwpd (5 wells)

  • Gas injection/export capacity – 160 mmscfd (3 wells)

  • Phase 1 development cost of approximately US$3.3-3.4 billion

 

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