Offshore staff
LONDON – Tullow Oil is taking various steps to improve operating efficiency and reliability at the Jubilee FPSO offshore Ghana, the company revealed in its latest results review.
Since the start of the year, maintenance measures to increase gas processing capacity have been successful, and following repairs to the water injection system, this is now operating at its full design capacity.
The company has formed a team to implement further reliability improvements to water injection throughout the course of the year.
Ghana’s Ministry of Energy has approved increased flaring from the Jubilee and TEN fields. A combination of flaring, improved gas processing and well/facility optimization has boosted production, with Jubilee currently delivering more than 90,000 b/d of oil.
At TEN, the partners are re-assessing the Enyenra development plan following a faster than expected decline at the field and a reduction in reserves.
They will concentrate investment in the near term on the Ntomme field, where reserves remain strong with potential for future growth. Both fields are currently producing in line with expectations (around 50,000 b/d gross).
Tullow expects to use the drillship Maersk Venturer on Jubilee and TEN this year. After completing a new production well at Ntomme, the vessel will return to Jubilee to drill and complete a water injector before conducting workovers on a producer and a water injector.
The final phase of the Jubilee FPSO’s turret remediation project is the installation of a catenary anchor leg mooring buoy to assist offloading. In January the buoy reached Ghana and once installation has finished and the system is mechanically operational, commissioning should conclude as scheduled during 2Q.
Offshore Suriname, Tullow expects to drill the Goliathberg-Voltzberg North well in block 47 during 4Q, testing dual targets in the Cretaceous turbidite play in around 1,900 m (6,233 ft) of water.
Over blocks 114 and 119 of Argentina’s offshore Malvinas West basin, a 10,500-sq km (4,054-sq mi) 3D multi-client seismic survey started last December. A further 3D seismic survey should get under way in late 2020 over block 122, the company added.
03/12/2020
