Harald gas field

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.

Field	Harald
Prospect	Lulu and West Lulu
Reservoir	Chalk ; Sandstone
Geological age	Danian and Upper Cretaceous ; Middle Jurassic
Offshore Block	5604/21 & 22
Reservoir depth	2,700 m ; 2,650 m
Reservoir thickness	75 m ; 100 m
Field delineation	56 km²
Reserves	Gas: 23.9 billion Nm^3;; Condensate: 0.2 million m³
Discovered	1980 ; 1983

Owner and operator

Maersk, TotalEnergies EP Danmark, Maersk Oil og Gas A/S.

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 2	-
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.

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

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. 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.

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