Equinor Energy AS discovered oil at Svalin field in the North Sea. The licensees will consider whether the discovery is sufficiently profitable for production.
Development well 25/11-H-1 H was drilled with the Deepsea Aberdeen rig in production license (PL) 169 and encountered oil in thin sandstone layers (< 3 m) with very good reservoir quality in the Balder formation, which is part of the Rogaland group. The oil is presumed to be in pressure communication with surrounding reservoir sands in the Heimdal formation on the Svalin C structure. The oil-water contact was not encountered.
Preliminary calculations show 0 - 0.1 million std. cu m of recoverable oil equivalent (0-0.6 MMboe).
Svalin field was proven in 1992 in sandstone from the Palaeocene to early Eocene in Heimdal and Balder formations, and has been in production since 2014. The field consists of two separate structures; Svalin C and Svalin M. Svalin C has been developed with a subsea template tied back to the Grane installation and Svalin M has been developed with a multi-branch well drilled from Grane.
Equinor is operator of the license with 57% interest. Partners are Petoro AS (30%) and Vår Energi ASA (13%).
Alex Procyk | Upstream Editor
Alex Procyk is Upstream Editor at Oil & Gas Journal. He has also served as a principal technical professional at Halliburton and as a completion engineer at ConocoPhillips. He holds a BS in chemistry (1987) from Kent State University and a PhD in chemistry (1992) from Carnegie Mellon University. He is a member of the Society of Petroleum Engineers (SPE).