Harald gas field
CountryDenmark
RegionNorth Sea
Location/block5604/21 & 22
Offshore/onshoreOffshore
Coordinates56.345239°N 4.272022°E
OperatorMaersk, Total EP Danmark, Maersk Oll og Gas A/S
OwnerMaersk, Total EP Danmark, Maersk Oll og Gas A/S
Field history
Discovery1980 (Lulu); 1983 (West Lulu)
Start of production1997
Production
Current production of gas1.69×10^9 m3/a (60×10^9 cu ft/a)
Year of current production of gas1998
Producing formationsChalk (Harald East); Sandstone (Harald West)

The Harald field is a gas and associated condensate production field in the Danish sector of the central North Sea. Production of gas and liquids started in 1997, and peak gas was in 1998. The Lulita field is a satellite of the Harald field.

The field

The characteristics of the Harald field reservoir are as follows.[1]

Field Harald
Prospect Lulu and West Lulu
Reservoir Chalk (Harald East); Sandstone (Harald West)
Geological age Danian and Upper Cretaceous (Harald East); Middle Jurassic (Harald West)
Offshore Block 5604/21 & 22
Reservoir depth 2,700 m (Harald East); 2,650 m (Harald West)
Reservoir thickness 75 m (Harald East); 100 m (Harald West)
Field delineation 56 km2
Reserves Gas: 23.9 billion Nm3;; Condensate: 0.2 million m3
Discovered 1980 (Lulu); 1983 (West Lulu)

Owner and operator

Maersk, Total EP Danmark, Maersk Oll og Gas A/S.[2][1]

Infrastructure

The field was developed through a single offshore installation comprising two bridge linked platforms.

Harald installations [3][1]
Name Harald A Harald B
Coordinates 56.345239°N 4.272022°E 56.344143°N 4.27192°E
Production start 1997 1997
Water depth 64 64
Installation Fixed steel Fixed steel
Access Bridge to B Helicopter
Function Wellhead, processing Accommodation for 16
Substructure weight tonnes 3800 1700
Topsides weight tonnes 6000 1300
Number of wells 2 (Harald East) 2  (Harald West) -
Export Unprocessed condensate and processed gas to Tyra East.

There is a connection into the 24-inch South Arne to Nybro gas pipeline

 -

Production

An 8-inch multi-phase pipeline transports fluids from the Norwegian Trym gas field to Harald A for processing.[1]

Production of the Harald field is by gas expansion, plus water influx.[1]

Harald acts as the processing facility for the Lulita field.[1]

The gas and condensate production profile of the Harald field is as shown in the tables.

Harald annual condensate production (1000 m3) and gas production (million Normal m3) 1997-2010[4]
Year 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Condensate 1,092 2,741 2,876 2,811 2,475 2,019 1,563 1,232 1,091 927 781 690 400 592
Gas 794 1,690 1,332 1,081 866 578 425 314 237 176 139 114 65 70
Harald annual condensate production (1000 m3) and gas production (million Normal m3) 2011-2022[4]
Year 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 Total
Condensate 573 541 174 274 389 334 276 195 179 24,227
Gas 95 79 25 21 21 24 16 10 8 8,180

The Lulita field

The Lulita field is a satellite of the Harald field. The accumulation is oil with a gas cap, and is a structural fault trap in a Middle Jurassic sandstone. The reservoir is at a depth of 3,525 m, with a field delineation of 4 km2.[1] The field was discovered in 1992 and came onstream in 1998. The production is based on natural depletion. The reservoir is produced through two subsea wells in a water depth of 65 m, flowlines deliver the wellhead fluid to the Harald installation where dedicated equipment produces oil, gas and water streams.[1]  

The oil and gas production profile of the Lulita field is as shown in the tables.

Lulita annual oil production (1000 m3) and gas production (million Normal m3) 1998-2010[4]
Year 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Oil 143 224 179 66 24 20 19 35 68 55 47 24 36
Gas 69 181 160 27 6 5 5 13 38 33 30 15 18
Lulita annual oil production (1000 m3) and gas production (million Normal m3) 2011-2022[4]
Year 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 Total
Oil 36 32 17 26 18 31 25 23 24 1,170
Gas 20 19 11 18 11 24 23 16 15 759

See also

References

  1. 1 2 3 4 5 6 7 8 "Oil and gas production in Denmark 2013" (PDF). Retrieved 25 November 2023.
  2. ↑ "A barrel full Harald oil field". Retrieved 25 November 2023.
  3. ↑ "OSPAR Inventory of Offshore Installations - 2021". Retrieved 25 November 2023.
  4. 1 2 3 4 "Danish Energy Agency. "Monthly and yearly production"". Retrieved 25 November 2023.

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