Re-drill under way at Isobel offshore Falklands

Offshore staff

LONDON – The semisubmersible Eirik Raude has spudded the 14/20-2 “Isobel 2” well for operator Premier Oil in license PL004a in the offshore North Falkland basin.

This is a re-drill of the Isobel Deep formation. The original well (14/20-1) penetrated the first 24 m (79 ft) of the reservoir in May but did not reach target depth due to operational issues.

According to partner Falkland Oil & Gas Ltd., the current well, 4.2 km (2.6 mi) from the original location, will test the F3 fan systems. These are mapped as entering the basin from the southeast margin and comprise a sequence of stacked reservoirs.

It will also penetrate four other fans within the complex comprising Irene, Doreen Elaine South, and Isobel.

Sam Moody, CEO of Rockhopper, another partner, said: “The second well on the Isobel/Elaine complex represents an exciting chance to significantly increase the volume of proven oil in the basin. 

“Not only does it give us another opportunity to explore the Isobel Deep fan, but also a number of further fan bodies in the Isobel area which have never previously been drilled.”


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