DNO ASA, the Norwegian oil and gas operator, today announced a gas condensate discovery on the Norma prospect in the Norwegian North Sea license PL984 in which the Company holds a 30 percent operated interest.
Preliminary evaluation of the discovery indicates gross recoverable resources in the range of 25-130 million barrels of oil equivalent (MMboe) on a P90-P10 basis, with a mean of 70 MMboe, in a Jurassic reservoir zone with high quality sandstones. Located 20 kilometers northwest of the Balder hub and 30 kilometers south of the Alvheim hub, Norma is situated in an area with extensive infrastructure in the central part of the North Sea, with tie-back options offering potential routes to commercialization. Drilled to a vertical depth of 4,800 meters with the Deepsea Yantai drilling rig, Norma is DNO’s first operated high-pressure high-temperature exploration well. At 4,650 meters, the discovery well encountered a 16-meter hydrocarbon column in a 20-meter gross reservoir section in Jurassic sandstones. Several gas condensate samples were collected in the reservoir. In addition, a water sample was acquired. A bypass core of 33.7 meters was secured and an extensive data and sampling program conducted.
This discovery is considered a play-opener for the deep turbiditic sands in this area given the exceptionally good reservoir quality encountered. Plans are underway to further delineate the discovery and the upside potential in the license. Before further appraisal drilling, improved seismic imaging and remapping will be undertaken to identify an optimal location for the next well.
Also within the same license, DNO has identified additional exploration prospects that have been considerably de-risked by the Norma results.
This discovery is considered a play-opener for the deep turbiditic sands in this area given the exceptionally good reservoir quality encountered. Plans are underway to further delineate the discovery and the upside potential in the license. Before further appraisal drilling, improved seismic imaging and remapping will be undertaken to identify an optimal location for the next well.
Even with the additional extensive data collection protocols, the Norma well is expected to be finished 15 days ahead of plan and at a cost eight percent below budget. Plug and abandonment operations have commenced this week.
(Source: DNO – Image: Deepsea Yantai/Odfjell Drilling)