Neptune Energy Norge AS will consider tying recent minor Norwegian Sea discoveries into existing infrastructure on Fenja field. Well 6406/12-G-1 H—the seventh in PL 586 and an extension of an observation well for 6406/12-3 A (Bue) oil discovery—was drilled 120 km north of Kristiansund by the West Phoenix drilling facility in 322 m of water.
The primary objective was to reduce resource estimate uncertainty. The secondary objective was to prove petroleum in Middle Jurassic reservoir rocks (sandstone in the lower part of the Melke formation).
The well was drilled to measured and vertical depths of 4,235 m and 3,695 m subsea, respectively. It terminated in the Melke formation. The well did not encounter reservoir rocks in either the primary or secondary target, but encountered a 38 m oil column just above the secondary target in the lower part of the Intra-Melke formation, of which about 20 m were moderate to good reservoir quality. The well will be temporarily plugged.
The Bue oil discovery was proven in 2014 in Upper Jurassic reservoir rocks (the Rogn formation) (OGJ Online, July 14, 2014). Before 6406/12-G-1 H was drilled on the discovery, resource estimate was 1-4 million standard cu m recoverable oil equivalent. That estimate has now been reduced to 0.2-1.6 million standard cu m, while the estimate for the new oil discovery is 0.5-3.2 million standard cu m.
The West Phoenix is headed to Ølen for a stay at the shipyard.
Neptune Energy is operator of PL 586 (30%) with partners Var Energy AS (45%), Suncor Energy AS (17.5%), and DNO Norge AS (7.5%).