Offshore staff
ATHENS, Greece – CNOOC’s Glengorm South appraisal well in the UK North Sea was a dry hole, according to partner Energean.
However, Glengorm North – one of the UK’s largest gas/condensate discoveries of recent years – is thought not to be connected to Glengorm South. The same applies to the Glengorm Central appraisal well, which is due to spud shortly.
Energean, which provided the update in its latest results statement, also issued progress reports on its development and exploration programs in the eastern Mediterranean Sea and the Gulf of Suez.
One of these is the 243-MMboe Karish North project offshore Israel, sanctioned in January, which entails re-entry, side tracking and completion of the KN-01 exploration well, and installation of a two-slot manifold and 12-in. flowline between the well and the Karish Main production manifold.
Karish North should start production in 2H 2023, with a second well likely be drilled in 2025, followed by later life workovers to both wells.
The company plans further investments on the FPSO Energean Power that will produce the Karish fields’ gas/condensate. One is an additional gas export riser, to boost gas production above 6.5 bcm/yr; the other is an extra oil train to provide increased liquids handling capability following the discovery of richer fluids in the KM-03 area.
Contracts should be awarded for both projects later in the year, with both set to come online in 2H 2023.
Planning has started for the next phase of exploration in the area. Energean is tendering a rig for three firm plus two optional wells, with the first well likely to spud in late 1Q 2022, targeting the 700 bcf Athena prospect.
A success here would de-risk remaining recoverable resources in offshore block 12, estimated at 3.1 tcf, allowing a development plan to be put together without the need for further exploration drilling.
Another planned well will target prospective resources in the Karish Main block, including a potential oil rim identified as part of the KM-03 development well drilling.
In January, Energean sanctioned the shallow-water North East Almeyra (NEA)/North Idku (NI) project offshore Egypt, close to the Abu Qir concession.
TechnipFMC has the EPCI contract for the four subsea wells and tieback to the Abu Qir platform and associated infrastructure. The integrated NEA/NI project, targeting 37 MMboe of reserves, should deliver first gas from one well in 2H 2022 and from the remaining three wells in 1Q 2023.
Peak production is estimated at 90 MMcf/d of gas and 1,000 b/d of condensates. Energean also expects to drill at least two side tracks to support production in the Abu Qir concession.
Finally, a feasibility study started last year on converting the Prinos field infrastructure offshore western Greece to accommodate carbon capture and storage. Energean estimates that the Prinos subsurface volumes could sequester up to 50 MM metric tons of CO2, and the company is now assessing the potential of captured CO2 for enhanced oil recovery.
04/19/2021
