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North Sea drilling method is industry first

12 Nov 2015

Centrica Energy Norway has just finished drilling a pilot hole for shallow gas on the Butch field in the North Sea. Instead of a rig for the job, a well intervention vessel was chartered and coiled tubing drilling (CTD) was used. It is likely the first time this technology has been used this way in the oil and gas industry.

The ability to work with surface pressure gives a unique advantage to the CTD process. This allows for maintaining underbalanced conditions on the formation to minimize damage and increase drilling penetration rate.

“Using this technology to drill a pilot hole is ground-breaking. We reduce risk and save a lot of money,” says project manager Espen Kopperud of Centrica Energy Norway.