Offshore staff
LONDON — Repsol has failed to find hydrocarbons with its latest exploration well offshore Guyana.
The jackup Noble Regina Allen drilled the Beebei-Potaro well in 71 m of water to a total depth of 4,325 m in the Kanuku license.
According to partner Tullow Oil, while the primary and secondary targets contained good-quality reservoir, both were water-bearing.
The well has been plugged and abandoned. Tullow said it would integrate the results into its regional subsurface models and work with the partners before deciding on any future action.
In its latest results review, the company revealed that it had taken over operation and maintenance of the Jubilee FPSO offshore Ghana from MODEC. This is part of a plan to make its assets in the country more efficient and cost-effective, Tullow said, including sustaining strong FPSO uptimes and pursuing further operating cost reductions.
The Jubilee co-venturers have held talks with Ghana’s government on developing around 2 Tcf of associated and non-associated in Jubilee and the deepwater TEN fields to help sustain the country’s long-term energy security of the country.
As for the ongoing drilling program that started in April 2021, so far six new wells have been drilled at Jubilee and one at TEN, at an average cost of under $50 million each—more than 10% below what had been expected. In addition, the Jubilee J12-WI and TEN En16-WI wells have been completed.
This year’s two new water injectors and one new producer have helped offset Jubilee’s natural decline, and Tullow expects the current pace of the program to lead to an acceleration of the next phase of drilling at Jubilee into the fourth quarter.
These wells will be tied into the Jubilee southeast infrastructure in 2023.
At TEN, active reservoir management has helped slow the natural decline. The Enyenra (En16-WI) water injector should come onstream later this year to provide pressure support for existing producers. A further Enyenra producer is set to be drilled and completed later this year.
At present, the rig is drilling the first of the two Ntomme Riser Base producer wells, both due to be tied in and onstream in the second half of 2023, following installation of a riser base manifold.
Offshore Côte d’Ivoire, production from the CNR-operated averaged about 2, 100 boe/d in the first half of the year. A two-month shutdown will take place this month with cargo tank maintenance work currently progressing.
Tullow continues to engage with the operator on identifying development drilling opportunities.
08.05.2022
