RE: Question9 Jun 2019 10:38
Abatt1
At the time of relinquishment of block 48/8 by Centrica in 2014 the Selene prospect didn’t meet the company’s commercial requirements and the relinquishment report was to justify giving up the licence. They believed they had better opportunities elsewhere. All relinquishment reports have ‘negative’ conclusions. After all, it would be very unlikely that an operator would issue a ‘positive’ report to justify relinquishment. As a rule, most relinquishment reports end with a ‘too risky’ or ‘too small’ justification - hence the conclusion.
But if you look at the immediate area you’ll see the Barque gas field in the block to the south, was discovered in 1966 when exploration drilling of the Sole Pit Basin was at its height. The first ‘natural gas’ started to arrive in UK that year and an army of ‘Gas Board’ technicians swarmed across the country converting burners in cookers, boilers and gas fires from ‘town gas’ The big fields nearby like West Sole, Leman and Indefatigable were developed and have now been decommissioned. Norwegian gas arrived from Frigg in the mid ‘70s. When oil was discovered at Montrose and Forties in 1968/9, it triggered a scramble to licence and drill elsewhere in the North Sea.
Attention returned to the southern North Sea in the 1990’s, pioneered by Shell bringing their experience from Netherlands and Germany. A selected initial area of the Barque field was developed for first gas in October 1990. Good reservoir performance from horizontal wells led to development of the whole field and the Clipper field at a cost of nearly $850 million. This was followed by hydraulic stimulation which transformed the economics. All this happened 30 years after the discovery well. So now Shell has nearly 30 years of reservoir performance data to use for exploration, and possible development of Selene.
Regarding Selene today, one must assume CNRL has applied some kind of ‘gizmo’ to reduce the uncertainty related to seismic depth conversion and convinced Shell to consider drilling a well. Quite an achievement, and a feather in the cap for CNRL’s team. A vertical well on Selene, in 22m of water, should cost in the region of $10 million. But the $25 million in the farm out agreement might suggest a horizontal side-track, perhaps with fracking, is part of the plan.