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Consent to use Transocean Winner for production drilling on the Alvheim field

Marathon Oil Norge AS (Marathon) has received consent to use the Transocean Winner mobile drilling facility for drilling of production well 24/6-B-5 on the Alvheim field.

The Alvheim field is developed with the Alvheim FPSO mobile production facility and subsea wells. Well 24/6-B-5 will produce oil from one of the three discoveries comprising the Alvheim field. Water depth in the area is between 120 and 130 metres.

The work will start during February at the earliest, and has an expected duration of 140 days. 


Transocean Winner (photo) is a semi-submersible drilling facility of the GVA-4000 design, built in 1983 at Gøtaverken Arendal in Gothenburg in Sweden.

The facility is owned by Transocean Offshore and operated by Transocean Offshore (North Sea) Ltd, with main offices in Stavanger.

Transocean Winner received the PSA’s Acknowledgement of Compliance (AoC) in August 2006.

Thor Gunnar Dahle, Principal engineer
Email: thor.dahle@ptil.no | +47 51 87 61 96