Lundin Petroleum has discovered oil at the Rolvsnes exploration well 16/1-25 S in PL338C, in the central North Sea sector of the Norwegian Continental Shelf (NCS), the company confirmed on 22 December.
Lundin said the well encountered a 30m gross oil column in porous granitic basement. Pressure data and oil type indicate that the petroleum system is in communication with the Edvard Grieg South discovery, which was made by the company in 2009.
The well, the second drilled in the production license, was spud by the Bredford Dolphin semisubmersible in mid-October. The well reached a total depth of 2096m below mean sea level in a water depth of 106m, and now will be permanently plugged and abandoned, the company said.
A production test achieved a production rate of 265 bo/d through a 36/64-in choke, Lundin said. Further studies will be required to incorporate all the findings and establish future planning, such as the potential drilling of an extended reach well from the Edvard Grieg platform with an associated long-term production test.
The gross contingent resource range for Rolvsnes, based on natural depletion drive, including the Edvard Grieg South discovery is estimated at 3-16 MMboe. Lundin said that there remains significant resource upside including potential to find a more extensive fracture network and secondary recovery potential. Including this prospective upside potential the total gross resource estimate is 10-46 MMboe.
16/1-25 S is the second well drilled in PL338C, which was carved out from PL338 in late 2014.
Lundin Norway is the operator of PL338C with 50% working interest. Its partners are Lime Petroleum Norway (30%) and OMV Norge (20%).
Image: Bredford Dolphin/Dolphin Drilling
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