| Asset |
| Armada |
76.4 |
Centrica 11.1, Total 12.5 |
| Blake |
44.0 |
Talisman 53.6, Idemitsu 2.4 |
| Buzzard |
21.7 |
Nexen 43.2, Suncor Energy 29.9, Edinburgh Oil & Gas 5.2 |
| Everest |
99.1 |
Total 0.9 |
| J-Block |
30.5 |
ConocoPhillips 36.5, Eni 33.0 |
| Jade |
35.0 |
ConocoPhillips 32.5, Chevron 19.9, Eni 7.0, OMV 5.6 |
| Jasmine |
30.5 |
ConocoPhillips 36.5, Eni 33.0 |
| Lomond |
100 |
|
| Maria |
36.0 |
Centrica 35.0, Total 29.0 |
| Seymour |
57.0 |
Centrica 18.0, Total 25.0 |
Operated assets
Armada Hub Area
The BG Group-operated Armada gas condensate fields (Fleming, Drake and Hawkins) extend over 31 square kilometres and span five exploration blocks. Production began in 1997. BG Group owns 76.42% in Armada.
The SW Seymour area of the BG Group-operated Seymour field (BG Group 57%) was appraised successfully and drilled from the Armada platform, with first production in 2003. A second well in the NW Seymour area was brought into production in 2006. A NW Seymour replacement well was drilled in 2011, with first production scheduled by 2012.
In 2003, BG Group assumed operatorship of the fallow Maria 16/29a-11Y discovery. Appraisal drilling identified and confirmed the viability of this discovery and the adjacent Maria Horst prospect. Maria (BG Group 36%) was developed via two sub-sea wells and tied back to the Armada platform, with production beginning in 2007.
The commingled stream of Armada, Seymour and Maria gas is exported via the CATS pipeline to Teesside. Liquids are transported through the Forties Pipeline System (Forties) to the Kinneil processing plant at Grangemouth. In 2010, net production from these fields was 7.53 mmboe.
Since 2009, the Rev field, a third-party two-well sub-sea development in the Norwegian sector of the North Sea, has been tied back to the Armada platform. BG Group receives a tariff payment for processing this production.
The Gaupe project (BG Group 60% and operator), a two-well sub-sea development in the Norwegian sector of the North Sea, will also be tied back to the Armada platform. First production is expected by 2012.
Everest and Lomond
BG Group operates the Everest field in which it has a 99.13% interest. Everest is situated in the central North Sea and first production began in 1993.
BG Group also operates the 100%-owned Lomond field which is situated in the central North Sea and first production began in 1993. Gas produced from the two fields is exported via the CATS pipeline and produced liquids go via Forties to Kinneil. Net production from the two fields totalled 7.60 mmboe in 2010.
Blake
BG Group has a 44% interest in, and is operator of, the Blake field, which is located 100 kilometres from Aberdeen in the Outer Moray Firth. Production started in 2001.
The field was developed in two phases. The first phase was the Blake Channel, which is a sub-sea development of six producing wells and two water-injection wells, tied back to an existing floating production, storage and off-loading vessel (FPSO) located over the Ross field some 9.5 kilometres away.
Development of the second phase, Blake Flank, was completed and production commenced from two wells in 2003. This sub-sea development is tied back through the existing Blake facilities to the Ross FPSO. In 2010, net production from the Blake field was 1.95 mmboe.
Jackdaw
The Jackdaw discovery straddles Blocks 30/2a (BG Group 44.1%), 30/2d (BG Group 35%) and 30/3a (BG Group 30.5%). Appraisal work continues on Jackdaw with a well being drilled during 2011. Results from the exploration and appraisal programme wells are being utilised to evaluate potential development concepts. Gross recoverable resources are estimated at 60 to 170 mmboe. First production is being targeted for 2017.
Non-operated assets
Buzzard
BG Group has a 21.73% interest in the Nexen-operated Buzzard oil field in the Outer Moray Firth which came onstream in 2007.
The facilities consist of a complex of four bridge-linked platforms, with oil export via Forties and gas export via the Frigg System. With gross estimated ultimate resources of around 700 mmboe, the field is one of the largest discovered in the UKCS in more than ten years. Peak production rates have exceeded 225 000 bopd gross. In 2010, Buzzard produced 15.61 mmboe net to BG Group.
In May 2010, an additional processing platform to remove hydrogen sulphide and extend plateau production was installed. Commissioning and start-up of this platform was completed in August 2011.
Elgin/Franklin Area
The Elgin/Franklin high-pressure/high-temperature (HPHT) gas condensate fields are located in the central North Sea. The fields began production in 2001. A total of 15 wells, six from Elgin and nine from the Franklin platforms (including two wells from the West Franklin field), produced 7.34 mmboe net to BG Group in 2010. Total operates the Elgin/Franklin fields in which BG Group has a 14.11% interest.
A separate field, West Franklin (BG Group 14.11%), started production in 2007 and a further well was brought into production. In 2008, the West Franklin B appraisal well identified additional potential reserves and prompted the Phase 2 development. In November 2010, Phase 2 of the development of the West Franklin field was sanctioned, which is aimed at producing estimated reserves of 85 mmboe and involves the drilling of three wells and the installation of a new platform tied back to the Elgin/Franklin facilities. Production is expected to start by the end of 2013.
The HPHT Glenelg field (BG Group 14.7%) started production in 2006. The field has been developed through a single well drilled from the Elgin wellhead platform. Elgin/Franklin, West Franklin and Glenelg gas is exported through SEAL to the onshore gas reception facilities at Bacton in Norfolk. Liquids are exported through Forties to the Kinneil processing plant at Grangemouth.
J-Block and Jade Area
The ConocoPhillips-operated Judy/Joanne (J-Block) gas condensate/oil fields and Jade gas condensate field are located in the central North Sea. BG Group has a 30.5% interest in J-Block and 35% in Jade. Production began from J-Block in 1997 and from Jade in 2002.
The Joanne field is a sub-sea development tied back to the manned Judy platform through two 5.5 kilometre pipelines. The Judy/Joanne fields currently produce from 16 wells.
Jade was developed using a normally unmanned wellhead platform and currently produces from eight wells. Production from Jade is exported via a sub-sea pipeline to the Judy platform where it is commingled and processed with Judy and Joanne production. The combined gas is then exported via the CATS pipeline to Teesside and the combined liquids stream exported via Norpipe to the Norsea oil terminal at Teesside. The 2010 combined net production was 8.54 mmboe.
The Jasmine discovery lies nine kilometres east of the Judy platform. The discovery straddles Blocks 30/6 and 30/7a (BG Group 30.5%). The mid-case recoverable reserves are estimated at around 170 mmboe. The Jasmine development will comprise a wellhead platform, with separate bridge-linked accommodation, tied back via a multi-phase pipeline and a new riser platform to the existing Judy production facilities. The project received government approval in October 2010. First production is anticipated in late 2012 with up to nine development wells planned in Phase 1.
Erskine
BG Group owns a 32% interest in the Chevron-operated HPHT Erskine field. Gas and liquids produced from the field are processed on the Lomond platform, with the gas then transported via the CATS pipeline, and liquids via Forties Pipeline System.
Offshore pipelines
CATS
In May 2011, BG Group increased its interest in the BP-operated CATS pipeline and terminal, to 62.42% (from 51.18%). The 404 kilometre CATS offshore pipeline transports gas to Teesside from the Everest, Lomond, Andrew, Armada, Seymour, Judy/Joanne, Jade, Erskine, Banff, Eastern Trough Area Project (ETAP), Maria and Montrose Arbroath fields (all in the central North Sea). In 2009, CATS also started transporting gas from the Rev field, in the Norwegian sector of the North Sea and the BG Group-operated Gaupe field will do the same from 2012.
The pipeline has a peak capacity of around 1 700 mmscfd. Onshore, the CATS Teesside terminal includes two gas processing trains, with a total capacity of approximately 1 200 mmscfd.
SEAL and SILK
BG Group has a 7.86% interest in SEAL, a 474 kilometre gas export pipeline to Bacton. With capacity of around 1 150 mmscfd of dry gas, it has been transporting gas from the Elgin/Franklin and Shearwater fields since 2001.
BG Group also has a 15.98% interest in the 900 metre SEAL Interconnector Link (SILK) pipeline that provides direct access from SEAL to the UK-Continent Interconnector pipeline.