Hurricane Exploration PLC has completed drilling the 205/23-3A (Halifax) well. The Halifax prospect lies on West of Shetlands Blocks 205/22b, 205/23, and 205/24 in the UK.
The Halifax well found a hydrocarbon column of at least 1,156 m is present within the basement extending well below local structural closure, which is at 1,040 m true vertical depth subsea (TVDSS). The basement reservoir below the final casing point, at 1,179 m TVDSS, is pervasively fractured. Porosity is consistent with that at the company’s adjacent Lancaster prospect, Hurricane reported.
The Halifax well, which was drilled and cased to 1,179 m TVDSS, was drilled to isolate a potential gas cap and oil-bearing column to a depth of 100 m true vertical thickness below structural closure.
It was then drilled to 1,801 m TVDSS and a drillstem test was performed. The well was unable to clean up and recovered only traces of formation oil to surface, Hurricane said. The well was finally drilled to total depth of 2,004 m TVDSS with no confirmed oil-water contact encountered.
The principal purpose of the Halifax well was to support the company’s view that Lancaster field and the Halifax prospect are one large connected structure. The Halifax well has identified an extensive oil column below local structural closure. The reservoir interval encountered is pervasively fractured with porosities similar to those at Lancaster.
Hurricane has a 100% holding in Lancaster, which contains an independently estimated mid-case contingent resource of more than 200 million bbl of recoverable oil. Lancaster is southeast of Schiehallion field.
Halifax was drilled by Transocean Spitsbergen ASA’s Spitsbergen semisubmersible drilling rig, which was demobilized and is no longer on hire to Hurricane.
