Tullow Oil, the lead company producing oil offshore western Ghana, says it has since the beginning of production at the end of 2010, seen over 22 million barrels of oil and safely exported 21 oil cargoes.
“The field is currently producing around 80,000 barrels of oil per day from eight wells with a ninth production well, J-07, currently offline while it is being sidetracked,” Tullow said in a statement issued in Accra.
It said recently, production rates had been below expectations due to mechanical issues in certain wells related to the design of the well completions.
These issues were not unusual for a new field development of this type and remedial work was currently ongoing, it added. The
J-07 sidetrack, currently under way, will incorporate a new completion design and is expected to be on stream in early 2012.
It noted that these well completion issues were not expected to have any impact on field resources.
“The resolution of these issues and the contribution of the Phase 1A wells will allow field production to ramp up to facility capacity later in 2012.”
Tullow said the Jubilee Phase 1A Plan of Development was awaiting government approval and drilling was scheduled to start in early 2012 with initial production commencing in the second quarter.
It said the phased approach to field development would allow these wells to benefit from the new completion design.
Meanwhile, appraisal activity also continued on the Enyenra and Tweneboa fields.
“In the West Cape Three Points licence, the Akasa-1 well made a light oil discovery in August. The Makore-1 exploration well in July, encountered good quality reservoir but was water bearing at this location. The Teak-3 well is expected to reach target depth later in November,” Tullow said