Offshore staff
LONDON – The jackup Maersk Resilient has started drilling the Columbus 23/16f-CDev1 development well for Serica Energy in the UK central North Sea.
Planned TD is 17,600 ft (5,364 m), and the well will include a 5,600-ft (1,707-m) horizontal section.
Drilling should take around 70 days to complete. The Columbus development area, targeting over 14 MMboe of gas-condensate, is 35 km (22 mi) northeast of Shell’s Shearwater production facilities. The single producing well will be tied into the existing Arran to Shearwater pipeline.
After drilling has finished, an open-hole sand-screen completion will be installed and a short clean-up flow and well test performed to provide production data and to prepare for flowing into the export system. The well will then be suspended. Later in the year, the well should be connected to the Arran pipeline, through which Columbus’ wellstream will be commingled with the Arran field’s production.
On arrival at the platform, the gas and liquids will be separated, with the gas exported via the SEGAL line to St Fergus and the liquids through the Forties Pipeline System to Cruden Bay.
Production is set to start in early 4Q, averaging around 7,000 boe/d (over 70% is gas). Serica’s partners are Waldorf Production UK and Tailwind Mistral.
03/17/2021
