Sidetrack strengthens Catcher oil potential
EnCore Oil has encountered further success with its ongoing exploratory program on the Catcher oil prospect in the UK central North Sea.
LONDON -- EnCore Oil has encountered further success with its ongoing exploratory program on the Catcher oil prospect in the UK central North Sea.
The 28/9-1 Y Catcher South West appraisal side track in block 28/9 was drilled to TD 6,255 ft (1,906 m), after intersecting high quality oil-bearing reservoir sandstones at the target Cromarty Sandstone level.
Initial analysis suggests a gross reservoir interval (MD) of 449 ft (137 m), equivalent to a vertical reservoir thickness of 261 ft (79.5 m); a net vertical sand thickness of 121 ft (37 m); a hydrocarbon column of 173 ft (52.7 m); and fluid levels in line with the oil water contact evidenced in the Catcher discovery well.
EnCore says the current phase of the Catcher area drilling program is now finished, and the jackup Galaxy II will be released on completion of the 28/9-1Y operations.
The company and its co-venturers are preparing to acquire further site surveys over other potential drilling locations in the block. And, negotiations are under way for a rig to drill the next phase of exploration and appraisal wells in the Catcher area, possibly starting this fall.
Alan Booth, EnCore's CEO, says: “This side track, downdip from the original Catcher discovery well, has successfully appraised the south western part of the Catcher structure and has reconfirmed our seismic interpretation and provided greater confidence in our oil in place estimates.
“Additional Cromarty sand units were developed beneath the oil/water contact and we will now integrate this information into our on-going evaluation of the Catcher accumulation. We believe that the group has established an important new North Sea discovery with very significant on-block upside potential, and we look forward to returning to the Catcher area as soon as practicable.
“We now await the start of appraisal drilling later this month at Cladhan, operated by Sterling Resources, which will commence following release of the J.W.McLean rig from its current drilling operations.”
EnCore’s partner Premier Oil estimates the Catcher/ Catcher East in the range 60-100 MMbbl.