Det norske Cut Rigs Time, Trims Removal Costs

Det norske has traded rigs for vessels during the cutting and removal of exploration wells, making it the first company to do so on the Norwegian continental shelf.

To carry out this well removal activity, Det norske has signed a three-year framework agreement with Norse Cutting & Abandonment Norway AS (NCA), which includes a two-year option.

Director of drilling in Det norske, Anton Tronstad was very pleased with the agreement, "This allows us to release the rigs earlier so they can faster do what they are built for, namely drilling wells. It reduces the costs for this part of the operation since it is done with a vessel which has far lower daily costs than a rig."

After completing the drilling of an exploration well, the rig will secure the well in accordance with the PSA regulations, including a trawl protection installed over the wellhead. The removal of the wellheads will be made in campaigns once or twice a year. There will also be an opportunity for other operators to participate in these campaigns.

NCA will be responsible for project management, engineering and offshore implementation of the work in close cooperation with Det norske. The well head will be cut by a patented method based on high pressure water cutting. DOF Subsea Norway AS will be the NCA's subcontractor for the vessel and will use the vessels Geoholm, Geosund and Skandi Bergen.

In addition to being first on the Norwegian shelf with this solution last November, a new world record for wellhead removal was set, using water cutting on 270 meters depth after a highly successful cutting and lifting job at Det norskes Trolla well. The entire operation was conducted without any HSE remarks.


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