OMV is set to prepare a new reserves estimate for its Wisting oil discovery in the Barents Sea, after successfully drilling its appraisal well.
The site, located 310km north of Hammerfest, was originally estimated to hold between 32 and 80 million standard cubic metres of recoverable oil equivalents.
The appraisal well was drilled to confirm the size of the 7324/8-1 discovery in the “Wisting Central Sør” and “Wisting Central Vest” segments. It was also trying to determine whether the well can be drilled horizontally in the shallow reservoir approximately 250m below the sea surface, as well as to formation-test the Stø formation.
A report from the Norwegian regulator said: “The well was drilled with a horizontal section of about 1400metres.
“It encountered sandstones in the Stø and Fruholmen formations. The “Wisting Central Sør” segment has good reservoir properties in the Stø formation and moderate reservoir properties in the Fruholmen formation. Reservoir quality in the Stø formation in the “Wisting Central Vest” segment is also good. The oil/water contact was not encountered.”
Maximum production rates were 762 Sm3 of oil and 48 310 Sm3 of associated gas per flow day through a 104/64-inch nozzle opening.
Based on the new data, OMV will now update the estimated discovery size. The results will be “important for further maturation of the Wisting area, as regards a potential development”.
The Transocean Spitsbergen carried out the work.