Harald gas field explained

Harald gas field
Coordinates:	56.345239°N 4.272022°E
Country:	Denmark
Region:	North Sea
Locblock:	5604/21 & 22
Offonshore:	Offshore
Operator:	Maersk, Total EP Danmark, Maersk Oll og Gas A/S
Owner:	Maersk, Total EP Danmark, Maersk Oll og Gas A/S
Discovery:	1980 (Lulu); 1983 (West Lulu)
Start Production:	1997
Producingformations:	Chalk (Harald East); Sandstone (Harald West)
Production Gas Bcm/Y:	1.69
Production Year Gas:	1998

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 km^2
Reserves	Gas: 23.9 billion Nm^3;; Condensate: 0.2 million m^3
Discovered	1980 (Lulu); 1983 (West Lulu)

Owner and operator

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

Infrastructure

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

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. Production of the Harald field is by gas expansion, plus water influx. Harald acts as the processing facility for the Lulita field. The gas and condensate production profile of the Harald field is as shown in the tables. Harald annual condensate production (1000 m^3) and gas production (million Normal m^3) 1997-2010^[3] !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 m^3) and gas production (million Normal m^3) 2011-2022!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 km^2. 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.   The oil and gas production profile of the Lulita field is as shown in the tables. Lulita annual oil production (1000 m^3) and gas production (million Normal m^3) 1998-2010!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 m^3) and gas production (million Normal m^3) 2011-2022!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 Gorm Field Tyra field Dan oil field Halfdan field Siri, Nini and Cecilie oil fields Valdemar oil and gas Skjold oil field South Arne oil and gas field Ravn oil field References

Notes and References

1. Web site: Oil and gas production in Denmark 2013 . 25 November 2023.
2. Web site: A barrel full Harald oil field . 25 November 2023.
3. Web site: Danish Energy Agency. "Monthly and yearly production". . 15 August 2016 . 25 November 2023.