Harald gas field

Last updated
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.

Contents

The field

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

FieldHarald
ProspectLulu and West Lulu
ReservoirChalk (Harald East); Sandstone (Harald West)
Geological ageDanian and Upper Cretaceous (Harald East); Middle Jurassic (Harald West)
Offshore Block5604/21 & 22
Reservoir depth2,700 m (Harald East); 2,650 m (Harald West)
Reservoir thickness75 m (Harald East); 100 m (Harald West)
Field delineation56 km2
ReservesGas: 23.9 billion Nm3;; Condensate: 0.2 million m3
Discovered1980 (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]
NameHarald AHarald B
Coordinates56.345239°N 4.272022°E56.344143°N 4.27192°E
Production start19971997
Water depth6464
InstallationFixed steelFixed steel
AccessBridge to BHelicopter
FunctionWellhead, processingAccommodation for 16
Substructure weight tonnes38001700
Topsides weight tonnes60001300
Number of wells2 (Harald East) 2  (Harald West)-
ExportUnprocessed 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]
Year19971998199920002001200220032004200520062007200820092010
Condensate1,0922,7412,8762,8112,4752,0191,5631,2321,091927781690400592
Gas7941,6901,3321,0818665784253142371761391146570
Harald annual condensate production (1000 m3) and gas production (million Normal m3) 2011-2022 [4]
Year201120122013201420152016201720182019202020212022Total
Condensate57354117427438933427619517924,227
Gas957925212124161088,180

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]
Year1998199920002001200220032004200520062007200820092010
Oil14322417966242019356855472436
Gas6918116027655133833301518
Lulita annual oil production (1000 m3) and gas production (million Normal m3) 2011-2022 [4]
Year201120122013201420152016201720182019202020212022Total
Oil3632172618312523241,170
Gas201911181124231615759

See also

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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.