North Sea
Statoil is aiming to supply its huge new field
developments with power from land
fields in the Utsira High region in the Norwegian North Sea from land.
The company wants to see
power being supplied from land to the Edvard Grieg, Ivar Aasen, Johan Sverdrup and Dagny fields from 2018. Equipment would be in- stalled in 2017 with power de- liveries starting from 2018. Statoil said the timeline will
make it possible to study the op- timal location of a distribution platform for power, and pro- vides a better basis for final de- sign in relation to planning for Johan Sverdrup, which will be the field with the greatest need for power.
Statoil’s Sleipner platform
(photo: Kjetil Alsvik – Statoil)
The study of the electrifica- tion solution for Edvard Grieg, Ivar Aasen and Dagny started in 2010. The discovery of Johan Sverdrup in 2011 changed the terms, and the study for new
Power from land S
tatoil has set out a timetable for electri- fication of a number of giant oil and gas
fields on the Utsira High was continued.
The study was initiated by the Ministry of Petroleum and Energy and is led by Statoil, to- gether with operators Lundin and Det norske oljeselskap, along with the other licensees. The Utsira High may be
well-suited for electrification due to the large power need, favourable distances and water depths. Preliminary estimates place the power need for the four fields at around 250- 300MW.
Statoil said: “A key element in the further study is to mature and optimise a concept for a joint distribution platform for the Utsira High. The plan calls for concept selection in the fourth quarter of 2013, with an investment decision in 2014 by a joint ownership. “The various fields included in the study have different start- up times during the period 2015-2018. Installation of a dis- tribution platform in 2017 and
start-up of power deliveries in 2018 will increase the chances of securing a comprehensive electrification solution from the start.”
Johan Sverdrup, with the
largest need for power, is sched- uled to start up in 2018. The work on Johan Sverdrup is in an early planning phase, and the final power need figures have not been defined. The base case, however, is to draw power from a joint distribution platform. As regards the Dagny plat- form, concept selections have been made in which the licence is pre-investing in equipment to facilitate power from land, and only one gas-operated turbine will be installed for power gen- eration. This turbine will only be used until power from land becomes available. After power from land is im- plemented, the gas turbine on Dagny will be part of the back- up solution which is necessary to ensure power supply when parts of the power from land fa- cility are undergoing mainte- nance, or in the event of an unplanned shutdown. The Edvard Grieg platform has also made a concept selec- tion in which the licence pre-in- vests in equipment to enable power supply from land. Edvard Grieg and Ivar Aasen have two turbines installed on Edvard Grieg which will generate power from the start-up of production. Ivar Aasen gets electrical power from Edvard Grieg through a dedicated power line, and is thus fully electrified from it comes on stream without any generators. When power from land becomes available in 2018 one turbine will be shut down on the Edvard Grieg platform.
10 November/December 2012 Offshore Technology
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40