ConocoPhillips has various interests in producing gas fields in the Rotliegendes and Carboniferous areas of the Southern North Sea. Net production in 2008 averaged 1 MBD of crude oil and 241 MMCFD of natural gas.
CARBONIFEROUS:
LOGGS
Operator: ConocoPhillips 50.0%.
The Lincolnshire Offshore Gas Gathering System (LOGGS) complex started
operating in 1988. It acts as a hub, receiving gas from the V-fields, Vampire,
Viscount, Valkyrie; the Saturn Unit Area (Saturn, Mimas and Tethys); and the Jupiter Area gas fields (Ganymede, Sinope, Callisto, Europa and NW Bell); as well as the third-party fields Ann, Alison, Annabel, Audrey and Anglia. Gas is co-mingled at LOGGS and forwarded to the Theddlethorpe gas terminal in Lincolnshire, England via a 36-inch pipeline.
V-fields
Operator: ConocoPhillips (50 – 61.13%).
V-fields comprise four separate gas accumulations (North Valiant, South Valiant, Vanguard and Vulcan) and are produced via normally unmanned production platforms. All the V-fields’ gas is received and transported by LOGGS to the Theddlethorpe gas terminal.
Saturn Unit Area
Operator: ConocoPhillips 42.9% (Saturn); ConocoPhillips 35.0% (Mimas); ConocoPhillips 25.0% (Tethys).
The Saturn Unit Area lies in Blocks 48/10a and 48/10b and consists of the gas accumulations Atlas, Hyperion and Rhea. First production began in September 2005, and it is delivered into the LOGGS infrastructure. Mimas in Block 48/09a and Tethys in Block 49/11b are satellite developments that came on line in 2007.
VIKING TRANSPORTATION SYSTEM (VTS)
Operator: ConocoPhillips 50.0%.
The facilities comprising the VTS offtake system were installed in the early 1970s and include a 24-inch, 11 kilometre infield pipeline, the Viking AR riser platform and a 28-inch, 138 kilometre export pipeline. The pipeline transports production from the Victor and Viking fields to the Theddlethorpe gas terminal. The pipeline is being replaced beginning in 2008 and estimated operational in 2009. The scope of the VTS Pipeline Replacement Project includes the installation, platform tie-ins and commissioning of a new 16-inch diameter, 27.3 kilometre gas export pipeline between the ConocoPhillips-operated Viking B and LOGGS offshore installations in the UK, Southern North Sea.
VICTOR
Operator: ConocoPhillips 20.0%.
Victor is an unmanned platform and subsea wellhead structure located in Blocks 49/17 and 49/2 of the UK sector of the North Sea. Gas is transported from Victor to Viking B. It is then sent by a 24-inch pipeline to the Viking AR platform and onwards to the Theddlethorpe gas terminal.
Viking
Operator: ConocoPhillips 50.0%.
Viking is situated in Blocks 49/12, 49/16 and 49/17. First production from Viking began in 1972. Today Viking consists of seven normally unmanned platforms, plus one manned main complex, Viking B (which consists of four bridge-linked structures), the associated outlying Vixen and Victoria subsea satellite and the Viking AR (riser platform). Gas is exported to the Theddlethorpe gas terminal via the VTS.
ROTLIEGENDES:
Caister Murdoch System
The Caister Murdoch System (CMS) is collectively the Murdoch complex, the Caister satellite platform plus the gas trunkline to the Theddlethorpe gas terminal. CMS acts as a hub for the Murdoch, Caister, Boulton, Munro, CMS III (Hawksley, McAdam, Murdoch K, Boulton H and Watt) and Kelvin fields and also provides third-party transportation.
Murdoch
Operator: ConocoPhillips 46.75% (Murdoch complex).
The Murdoch platform complex consists of three bridge-linked platforms, located in Block 44/22 of the UK sector of the North Sea.
Operator: ConocoPhillips 54.5% (Murdoch field).
The Murdoch field is produced via one of the Murdoch complex platforms.
Caister
Operator: ConocoPhillips 39.0%.
Caister is a steel-piled wellhead platform, located in Block 44/23a, which is connected by subsea flowline to Murdoch.
Boulton
Operator: ConocoPhillips 46.0%.
The normally unmanned Boulton wellhead platform, located in Block 44/21a is operated remotely from the Murdoch complex.
CMS III
Operator: ConocoPhillips 59.5%.
CMS III consists of five subsea satellites (Hawksley, McAdam, Murdoch K, Boulton H and Watt) tied back to the Murdoch complex for processing and onward transportation.
MUNRO
Operator: ConocoPhillips 46.0%.
Munro is located in Block 44/17b of the UK Southern North Sea. First production was achieved in 2005.
Kelvin
Operator: ConocoPhillips 50.0%.
The Kelvin field lies in blocks 44/18b and 44/23b, eight miles northeast of the Murdoch platform. First production was achieved in 2007.
Harrison
Operator: ConocoPhillips 50.0%.
Successful discovery of the Harrison prospect was confirmed in 2007. Development plans are being considered.