Lundin Petroleum is considering a joint tie-back development of its Luno II and new Luno II North discoveries after exploration results showed they are in seperate systems.
The latest exploration well 16/4-9 S on the Luno II North prospect found 12-26 MMboe gross contingent resource. While Luno II, discovered about 4km from Luno II North, is estimated to contain about 27-71 MMboe.
The two discoveries could be tied back to Lundin's Edward Grieg development, about 15km from Luno II North.
The latest well is in a separate sub-basin northwest of the Luno II discovery in PL359 in the Norwegian sector of the central North Sea. It is on the southwestern flank of the Utsira High.
The well encountered a 23m gross oil column in reasonable quality Jurassic/Triassic conglomeratic sandstones. Lundin says the pressure data indicates that the petroleum system in the Luno II North discovery is different to that seen in the Luno II discovery.
One production test (DST) was performed in the oil zone, producing at a rate of 1000 bo/d through a 32/64in choke.
The gross contingent resource range for the Luno II North discovery, representing the southern part of the prospect, is estimated to be 12-26 MMboe.
Whilst the analysis of the economic viability of the various development concepts is ongoing, one possible development solution could be a combined Luno II and Luno II North subsea tie-back to the Edvard Grieg field.
Both the Luno II North and the Luno II discoveries are located wholly in PL359 with a fully aligned ownership between PL359 and Edvard Grieg’s PL338.
Appraisal well 16/4-9 S is the fourth well drilled in PL359 after it was awarded in 2006. The well was drilled to a total depth of 2305m below mean sea level in 100m water depth.
The well was drilled using the semisubmersible drilling rig Bredford Dolphin and will be permanently plugged and abandoned.
Lundin Norway AS is the operator of PL359 with a 50% interest. The partners are OMV (Norge) with 20%, Statoil Petroleum with 15% and Wintershall Norge with 15% working interest.
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