Norwegian Energy Company ASA (Noreco) will drill two infill wells at the Tor reservoir in the Halfdan North East area in the central part of the Danish North Sea.
The wells will be drilled by the Shelf Drilling Winner jackup early spring 2023. Both wells are expected to increase gas production from Halfdan, with plateau production expected during autumn 2023.
The first well is expected to have an initial production rate of 3,000 boe/d net to Noreco with 75% gas. Overall production from the two wells will be about 2.9 MMboe net to Noreco, of which about 50% is gas.
Total cost of the wells is $39 million net to Noreco with total unit cost of about $13/boe.
Halfdan is the largest producing field in Denmark and the Halfdan hub includes Halfdan and Halfdan North East (NE). Halfdan NE is a development of the gas accumulation in the Ekofisk formation. The main field produces oil and gas from the Tor Chalk reservoir.
Halfdan main field was discovered in 1998 and brought on stream in 1999, and Halfdan NE followed in 2004. Halfdan has been developed in four phases, and 71 wells have been drilled, with currently 35 active oil producers and 17 active water injectors. Halfdan NE has been developed in 3 phases, and 21 wells have been drilled, with currently 16 active gas producers. Produced oil is transported in pipeline to Gorm while gas is transported to Tyra West.
About the Author
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).