LONDON – Tullow Oil has issued updates on its E&P activities offshore West Africa in its latest results statement.
Off Ghana, a drilling campaign that started in April 2021 has so far delivered six new wells at the Jubilee field and two at the TEN fields complex, at an average cost of around $50 million per well, and ahead of schedule.
In addition, two existing wells have been completed, at Jubilee (J12-WI) and at TEN (En16-WI).
The first of the two strategic riser base wells (Nt10-P), drilled to define the extent of the Ntomme reservoir, was water bearing. A second well is planned later this year, Nt11-P, targeting a different objective: this should help define future drilling and infrastructure plans for the TEN Enhancement Project.
Currently the rig is drilling and completing a producer well on Enyenra (En21-P), before moving across to Nt11-P. If the current pace of drilling continues, the next phase at Jubilee, which includes wells to be tied into the Jubilee South East infrastructure, could be advanced to Q4.
With indications that the same rig could deliver the planned program of wells through 2023, the joint venture partners have agreed to defer a decision on bringing a second rig to Ghana.
Operator CNR International plans a 45-day shutdown of the Espoir FPSO offshore Côte d’Ivoire starting next month, for cargo tank maintenance and remediation work associated with vessel class certification. Tullow is in talks with CNR on determining a longer-term course of action for the platform.
And with partner PetroCi, the company has agreed to proceed into the second exploration phase in offshore Block CI524
Finally, Tullow expects most work for its operated and non-operated decommissioning programs offshore Mauritania and the UK to be completed by the end of 2025, with environmental and monitoring surveys to continue from 2026.