Carbon storage in the North Sea

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Carbon storage in the North Sea
Carbon Storage at sea.svg
Carbon storage at sea; besides sea bed storage, there have been proposals to dissolve carbon dioxide in the waters of the North Sea. [1]
Process typeChemical
Main technologies or sub-processesClean hydrogen
Carbon storage
Feedstock
  • Carbon dioxide Hydrogen Natural gas
Product(s)CO2 storage
Leading companiesSee text

Carbon storage in the North Sea (also known as carbon sequestration in the North Sea) includes programmes being run by several Northern European countries to capture carbon (in the form of carbon dioxide, CO2), and store it under the North Sea in either old oil and gas workings, or within saline aquifers. Whilst there have been some moves to international co-operation, most of the Carbon Capture and Storage (CCS) programmes are governed by the laws of the country that is running them. Because the governments have pledged net zero carbon emissions by 2050, they have to find ways to deal with any remaining CO2 produced, such as by heavy industry. Around 90% of the identified storage geologies for carbon dioxide in Europe are shared between Norway and the United Kingdom; all of the designated sites for storage are located in the North Sea.

Contents

The first carbon storage operation to utilise the North Sea bed, was the Sleipner Field in 1996, which was operated by a Norwegian oil and gas company. However, the storage of carbon was down to the gas product having a high carbon content, and so needed to be scrubbed (stripped) of its carbon, which was pumped back down into the gas well.

Background

The dotted lines show the divisions between countries. Norway & the United Kingdom dominate, with The Netherlands, Denmark & Germany having smaller areas. North Sea map-en.png
The dotted lines show the divisions between countries. Norway & the United Kingdom dominate, with The Netherlands, Denmark & Germany having smaller areas.

Gas and oil were first discovered in the North Sea off the coast of The Netherlands in 1959. This led to a huge oil and gas industry, and whilst the industry peaked around the year 2000, it is projected that gas and oil could be successfully recovered from the North Sea until the 2050s. [2] A 1958 law enacted by the United Nations (United Nations Convention on the Continental Shelf), and a later law from 1982 (United Nations Convention on the Law of the Sea [UNCLOS]), afforded nations certain rights for the use of the seabed on the continental shelf, but also, the responsibilities that a country should adhere to. So, whilst installing oil and gas rigs was allowed, the rigs and pipelines are sometimes required to be removed when the drilling was finished to avoid interfering with shipping and fishing. [3] This is of paramount importance off the coast of The Netherlands where the coastal waters are very shallow, but for Norway and the UK, decisions could be taken on a case-by-case basis, thereby affording the opportunity of re-using the infrastructure for CO2 storage. [4]

The previous use of drilling for oil and gas, and the plentiful availability of the saline aquifers on the sea bed, means that Norway and the United Kingdom share 90% of the identified locations that are geologically stable enough to store carbon dioxide under pressure. The chief executive of Storegga, a company behind a scheme to store carbon working from Scotland stated that "..While I don’t doubt there will be other stores found in Europe over time . . . they will still be dwarfed by the North Sea." [5]

Although carbon storage is deemed by most scientists as an essential element to the reduction of greenhouse gas emissions, [6] [7] the cost of removal of the CO2, the transportation and then the eventual storage of the gas, is quite prohibitive, [8] and as countries have pledged a net zero economy by 2050, [9] efforts have been concentrated on the technologies to deal either with the carbon produced, or to remove it entirely. [10] In April 2021, the commercial removal, transportation and storage of CO2 was rated at $600 per tonne, but this was expected to be reduced to between $200 and $300 by the late 2020s. [note 1] [11] Despite the necessity to achieve carbon-zero programmes, there has been public opposition to storing carbon onshore, and the North Sea offers the largest offshore storage capacity in Europe. [12]

Whilst studies have developed the prospect of storing CO2 in the depths of the sea, where the pressure will keep it submerged, the preferred method is for storage in old oil and gas wells. When CO2 mixes with seawater, the imbalance may harm marine life, and would lead to a "measurable change in ocean chemistry". [13]

The first commercial storage of CO2 in the North Sea (and in the world) was enacted in 1996 at the Sleipner gas field, [14] though the carbon was removed from the gas on-site (ie, at sea) and pumped into a saline aquifer due to commercial reasons. [15] However, the monitoring of the storage site, and the data acquired over the years provides a useful benchmark for other projects to learn from. [16] A study conducted on the Sleipner storage reservoir in 2003, when it had been in operation for seven years, determined that the CO2 would not "migrate into the North Sea for 100,000 years. [17] Others have stated that whilst seepage from storage reservoirs may be inevitable, the loss rate will be negligible and the environmental impact of not storing CO2 would be worse. [18] Similarly, a study conducted in the Forties Oil Field, determined that over a 1,000 year period, 0,2% of the CO2 would leach out of the storage facility and move upwards. Even so, the maximum distance it would move would be only half the distance to the seabed level. [17] However, some existing oil and gas wells were leaking methane into the sea. A study in 2012/2013, determined that of 43 wells observed in the North Sea, 28 were leaching methane, the second most important greenhouse gas after carbon dioxide. Methane in the sea water leads to acidification of the water. [19]

St Fergus Gas Terminal from the air Annachie lagoon and St Fergus Gas Terminal from the air (geograph 5301081).jpg
St Fergus Gas Terminal from the air

The ability to re-use depleted oil and gas wells, or saline aquifers, and the ability to back flow carbon dioxide through redundant pipelines, means a cost-saving benefit. A study conducted by University of Edinburgh on the Beatrice Oilfield off the coast of Scotland, determined that decommissioning the oil platform would cost £260 million, but re-purposing the platform to accept captured CO2 over a thirty-year period, would cost only £26 million. [20] One scheme slated to be worked from the St Fergus Gas Terminal in Scotland, would save £730 million by pumping the CO2 back through the redundant pipelines, saving on investment in transportation. [10] Some of the UK schemes are looking beyond their domestic markets in terms of CO2 storage, and will lobby to store the gas on behalf of other nations. [5] One storage site investigated lies 1.6-kilometre (1 mi) down, under the Moray Firth off the east coast of Scotland. The depleted reservoir lies underneath the Captain Sandstone Formation, and if CO2 was injected from two points simultaneously, the reservoir has the capacity to store 360,000,000 tonnes (400,000,000 tons) in just 1/6 of its area. This is the amount of CO2 emitted by Scotland over 23 years. [21]

In 2009, the European Union issued a directive governing carbon capture and storage, stating that sites for storage need to be secure against harm to human health, and that operators must have the financial backing to see the project through, should problems occur. [22] Companies (and Member States) that store CO2 under the conditions of the directive, are free to designate the CO2 as not having been "emitted" under the Emission Trading Scheme. [23]

Enhanced oil recovery

Enhanced oil recovery (EOR), involves injecting CO2 into oil fields to force remaining oil and residues out of the field. This can extend the life of the oilfield in addition to storing the CO2, provided the geology is stable enough to do so. The technology for this has been proven onshore, but offshore workings are still under evaluation. [24] [25] Two projects in the North Sea were initiated in 1998 and in 2002, one which involved injected liquid methane into an oil well. The success of the two ventures led to increased confidence in the use of EOR offshore. [26] A further venture at the Forties Oil Field has been suggested, which would store the CO2 and make the oil recovery easier, although not economically viable. [27]

Denmark

Project Greensand

A consortium of three companies (Ineos, Maersk Drilling and Wintershall Dea) are running a project to store carbon in the Nini West oilfield. The susbsea reservoir was confirmed as feasible in November 2020 after a drilling programme determined that it could store 450,000 tonnes (500,000 tons) of captured CO2 over a ten-year period. [28] The Nini West subsea reservoir is estimated to be 1.4 miles (2.3 km) below the sea, and in an area which has been geologically stable enough to store oil and gas for 20 million years. [29]

Norway

Gas and oil exploration, drilling, and recovery of assets used in those ventures are awarded by the Ministry of Petroleum and Energy (MPE). As the Continental Shelf in Norwegian waters consists of very deep water, pipelines can be left in-situ when they become redundant provided they do not interfere with fishing rights. [30]

Sleipner Field

Drilling of the Sleipner Oil and Gas Field initiated a project in 1996 to remove the carbon dioxide from the gas it was acquiring from the gas field some 800 metres (2,600 ft) below the sea level. [31] It was rated with around 9% CO2, which needed to be reduced significantly if the gas was to be commercially acceptable. [32] A CO2 level of 2.5% was stipulated due to pipeline specifications and also to meet a carbon tax enacted by the Norwegian Government in 1990. [33] The process involves passing the natural gas through an amine scrubber which removes the CO2, and then the amine/CO2 mix is heated up, producing a pure CO2 stream that is piped back down to the seabed and stored in a saline reservoir. This reservoir has been monitored since the project started in 1996 so that the cap rock keeps the gas contained. [34] The cap rock is Nordland Shale, with a thickness varying between 200 metres (660 ft) and 300 metres (980 ft). [35]

By 2011, over 13,000,000 tonnes (14,000,000 tons) of CO2 had been sequestered in the saline aquifer in the Utsira sand formation underneath the sandstone cap. [36] The operation is carried out with adherence to Norwegian petroleum law. [37]

Project Longship

In 2011, a project in Norway targeted at reducing carbon in power plants (coal and gas) failed to gain any ground. The project did not work because the energy source could be switched to renewables. In 2021, another proposal, Project Longship, unveiled a kr25 billion ($3 billion) plan to target the carbon emissions from cement, glass, paper and fertiliser plants, which emit large tonnages of carbon in their production processes. [38]

By January 2021, the sides of a fjord outside Bergen had been cut out with explosives to site the tanks needed to store the captured CO2. The consortium running Longship have stated that their aim is to run a business and expect to take shiploads of captured CO2 from as far afield as Northern Spain. [39]

United Kingdom

Drilling for oil and gas in and around the United Kingdom is governed by the Petroleum Act 1998, but the storage of CO2 is directed by the Energy Act 2008. The UK oil and gas industry is not state owned, as it is in the Netherlands and Norway. [40]

By 2030, the UK government wish to see four industrial clusters, which will trap, transport and store carbon to prevent emissions into the atmosphere. The five largest industrial areas that have been selected to work on this are Grangemouth in Scotland; Teesside, the Humber and Merseyside in England; and Port Talbot in Wales. [41] In 2012, the government sponsored two projects to go forward with CCS; one at Peterhead/St Fergus in Scotland based on the combustion of natural gas, and the other at Drax Power Station in North Yorkshire in England. [42]

Besides the North Sea, which is listed by CO2 stored in three different regions (Northern North Sea, Central North Sea, Southern North Sea), the coastal waters around the United Kingdom also have identified sites in the East Irish Sea, and the English Channel. [43] Altogether, sites identified around the UK continental shelf have the capacity to store over 4 billion tonnes (including in the Irish Sea). [44]

England

NTZ and ZCH carbon storage area in the North Sea NTZ and ZCH carbon storage area in the North Sea.svg
NTZ and ZCH carbon storage area in the North Sea

Heavy industry on Teesside and the Humber Estuary, (known as the East Coast Cluster), [46] have combined to focus storing CO2 in a saline aquifer under the North Sea, under the name Northern Endurance Partnership. [47] The combined carbon output from the two industrial areas, account for almost 50% of that which is emitted by heavy industry in the United Kingdom. [48] [49] The Endurance storage site, which is 75–90 kilometres (47–56 mi) offshore of the Yorkshire Coast, [50] and 1.6 metres (5 ft 3 in) below the seabed, [51] was initially earmarked for a carbon capture project (the White Rose) from Drax power station, that was cancelled in 2015. [52]

Net Zero Teesside (NZT)

A proposal to site a power station on the site of the former Redcar Steelworks was announced in 2021. [53] The Whitetail Energy Plant is expected to be operational by 2025. [54] Both NZT and ZCH, aim to be operating fully by 2026, [55] and would look to use the Endurance Aquifer for carbon storage. [5] The original proposal for the White Rose Project, estimated that the storage capacity of the Endurance Aquifer was 54,000,000 tonnes (60,000,000 tons). [50]

Zero Carbon Humber

Zero Carbon Humber (ZCH) is the Zero Carbon programme for Humberside, the region which straddles the north and south banks of the Humber Estuary on the East Coast of England. The region is the largest emitter of processed carbon in the United Kingdom, releasing 12,400,000 tonnes (13,700,000 tons) annually. [56] H2H Saltend is a proposed low carbon hydrogen plant that will aim to be producing hydrogen from natural gas by 2027. [57] The cancelled White Rose Project, planned for a pipeline to travel to the aquifer from the Humber area and make leave the coastline at Barmston. [58]

Scotland

Acorn CCS intends to focus its efforts on heavy industry around Grangemouth, with the gas terminal at St Fergus being the export point through the Goldeneye Pipeline to the redundant Goldeneye field, 100 kilometres (62 mi) north-east of Aberdeen, and 2 kilometres (1.2 mi) below sea level. [59] [60] The Goldeneye platform exported gas between 2004 and 2011, with permission to decommission the platform in 2019, however, plans were submitted to keep the options open for the rig in case of a CCS programme. [61] The pipeline connecting St Fergus to the Goldeneye field is a carbon-steel tube which is 510 millimetres (20 in) in diameter. [62] The depleted gas well lies at 2,516 metres (8,255 ft), underneath layers of sandstone, shale and chalk. [63] However, funding for the project from the UK government was cancelled in 2015. [64] [65]

A direct air capture project aims to install a plant that sucks air through a giant fan and fixes the carbon in the air to a solution, which can be refined to enable the captured carbon to be stored. The positioning of such a plant in Scotland is thought to be favoured because the engineering involved is akin to the skills needed in the oil and gas industry, and the plant can be sited near to where the gas pipelines come ashore in Scotland. [66]

Wales

The North Wales cluster will operate jointly with that of the North-West of England. Ahead of the COP 26 summit in Glasgow in 2021, the UK Government announced an investment of at least £140 million, to promote carbon carbon and hydrogen schemes in the North-West England/North Wales cluster, shared jointly with the Humber/Teesside venture. [67] Carbon captured in Wales is planned to be sequestrated in old oil and gas wells in the Irish Sea, or transported to one of the North Sea projects for storage. [68]

Other countries

The Netherlands, Germany, France and Sweden all recognise the need for carbon capture programmes. In 2021, many of these were considering storage under the North Sea. However, none have stated whether they will progress their own storage, or pay for the disposal of the carbon at either the Danish, Norwegian or British sites. [69] [70] [71]

See also

Notes

  1. ↑ Price estimation as at April 2021.

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References

  1. ↑ Metz et al. 2005, p. 214.
  2. ↑ "About the Project - Brief History of North Sea Oil and Gas Industry :: LIVES IN THE OIL INDUSTRY". www.abdn.ac.uk. 12 June 2006. Archived from the original on 8 August 2021. Retrieved 8 August 2021.
  3. ↑ Roggenkamp 2020, p. 456–457.
  4. ↑ Roggenkamp 2020, p. 473.
  5. 1 2 3 Thomas, Nathalie (31 July 2021). "UK industry lines up for lucrative carbon capture projects" . The Financial Times. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  6. ↑ Tosun, Yildirim Ismail (2020). "1: Microwave Carbonation of Thermal Power Plant Flue Gas....". In Battoli, Martia; Frediani, Marco; Rosi, Luca (eds.). Carbon-based material for environmental protection and remediation. London: InTech Open. p. 5. ISBN   978-1-78984-586-0.
  7. ↑ Twidale, Susanna (29 June 2021). "World must remove 1 bln tonnes CO2 by 2025 to meet climate goal - report". Reuters. Archived from the original on 20 October 2021. Retrieved 20 October 2021.
  8. ↑ Metz et al. 2005, p. 3.
  9. ↑ "Pathway to critical and formidable goal of net-zero emissions by 2050 is narrow but brings huge benefits, according to IEA special report - News". IEA. 18 May 2021. Archived from the original on 2 November 2021. Retrieved 3 November 2021.
  10. 1 2 Mehta, Angeli (25 February 2019). "Can UK Acorn carbon capture project grow into solution to industry emissions? | Reuters Events | Sustainable Business". www.reutersevents.com. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  11. ↑ Nogrady, Bianca (6 April 2021). "We've got carbon capture all wrong". Wired UK. Archived from the original on 8 August 2021. Retrieved 8 August 2021.
  12. ↑ Roggenkamp 2020, p. 455.
  13. ↑ Metz et al. 2005, p. 279.
  14. ↑ Metz et al. 2005, p. 60.
  15. ↑ Arts, Rob; Eiken, Ola; Chadwick, Andy; Zweigel, Peter; van der Meer, Bert; Kirby, Gary (2004). "Seismic monitoring at the Sleipner underground CO 2 storage site (North Sea)". Geological Society, London, Special Publications. 233 (1): 181–191. Bibcode:2004GSLSP.233..181A. doi:10.1144/GSL.SP.2004.233.01.12. S2CID   140578252.
  16. ↑ Furre et al. 2017, p. 3,923.
  17. 1 2 Metz et al. 2005, p. 246.
  18. ↑ "North Sea "ideal" for CO2 storage, Durham University expert says - Durham University". www.dur.ac.uk. 23 April 2009. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  19. ↑ Böttner, Christoph; Haeckel, Matthias; Schmidt, Mark; Berndt, Christian; Vielstädte, Lisa; Kutsch, Jakob A.; Karstens, Jens; Weiß, Tim (September 2020). "Greenhouse gas emissions from marine decommissioned hydrocarbon wells: leakage detection, monitoring and mitigation strategies". International Journal of Greenhouse Gas Control. 100: 103–119. doi: 10.1016/j.ijggc.2020.103119 . S2CID   219826125.
  20. ↑ "Old oil rigs could become CO2 storage sites". BBC News. 8 August 2019. Archived from the original on 7 November 2020. Retrieved 20 October 2021.
  21. ↑ "Study finds CO2 storage 'can be boosted' in North Sea". BBC News. 10 September 2015. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  22. ↑ "A legal framework for the safe geological storage of carbon dioxide". Climate Action - European Commission. 23 November 2016. Archived from the original on 11 August 2021. Retrieved 9 August 2021.
  23. ↑ "CO2 Storage Liabilities in the North Sea An Assessment of Risks and Financial Consequences" (PDF). assets.publishing.service.gov.uk. May 2012. p. 6. Archived (PDF) from the original on 9 August 2021. Retrieved 9 August 2021.
  24. ↑ "Carbon capture and storage (CCS)" (PDF). parliament.uk. March 2005. p. 3. Archived (PDF) from the original on 9 August 2021. Retrieved 9 August 2021.
  25. ↑ Metz et al. 2005, p. 204.
  26. ↑ Ball, Mann & Sim 2015, p. 3.
  27. ↑ Metz et al. 2005, p. 262.
  28. ↑ Kulovic, Nermina (25 November 2020). "North Sea reservoir confirmed suitable for CO2 storage". Offshore Energy. Archived from the original on 9 August 2021. Retrieved 20 October 2021.
  29. ↑ "StackPath". Offshore. 17 August 2021. Archived from the original on 20 October 2021. Retrieved 20 October 2021.
  30. ↑ Roggenkamp 2020, p. 471–472.
  31. ↑ Metz et al. 2005, p. 202.
  32. ↑ Skelmeraas, Olav (2 March 2017). "Sleipner carbon capture and storage project". Institution of Civil Engineers (ICE). Archived from the original on 8 August 2021. Retrieved 8 August 2021.
  33. ↑ Torp, Tore A; Brown, Ken (2006). "CO2 UNDERGROUND STORAGE COSTS AS EXPERIENCED AT SLEIPNER AND WEYBURN" (PDF). faculty.jsd.claremont.edu/. p. 2. Archived (PDF) from the original on 22 September 2017. Retrieved 8 August 2021.
  34. ↑ "Sleipner: Pioneering Carbon Storage Under the Sea". energyfactor.exxonmobil.eu. 9 July 2019. Archived from the original on 8 August 2021. Retrieved 8 August 2021.
  35. ↑ Nooner, S L; Eiken, O; Hermanrud, C; Sasagawa, G S; Stenvold, T; Zumberge, M A (2007). "Constraints on the in situ density of CO2 within the Utsira formation from time-lapse seafloor gravity measurements". International Journal of Greenhouse Gas Control. Elsevier. 1 (2): 198–214. doi:10.1016/s1750-5836(07)00018-7. ISSN   1878-0148.
  36. ↑ Chadwick, Andy; Eiken, Ola (2013). "Offshore CO2 Storage: Sleipner natural gas field beneath the North Sea" (PDF). nora.nerc.ac.uk. p. 1. Archived (PDF) from the original on 14 March 2021. Retrieved 8 August 2021.
  37. ↑ Furre et al. 2017, p. 3,917.
  38. ↑ Milne, Richard (11 January 2021). "Norway's Viking 'Longship' goes after greenhouse gas emissions" . Financial Times. Archived from the original on 19 October 2021. Retrieved 19 October 2021.
  39. ↑ Orange, Richard (25 January 2021). "Norway digs deep to tap carbon storage boom". The Daily Telegraph. No. 51, 535. Business section. p. 5. ISSN   0307-1235.
  40. ↑ Roggenkamp 2020, p. 468.
  41. ↑ Webster, Ben; Swinford, Steven; Ellson, Andrew (19 November 2020). "Revolution is a challenge and it won't come cheap". The Times. No. 73321. p. 7. ISSN   0140-0460.
  42. ↑ Spence, Horan & Tucker 2014, p. 6259.
  43. ↑ "About CO2 Stored". www.co2stored.co.uk. Archived from the original on 8 August 2021. Retrieved 8 August 2021.
  44. ↑ Pearce, Jonathan; Chadwick, Andy; Bentham, Michelle. "Developing storage sites prior to deployment" (PDF). ukccsrc.ac.uk. p. 7. Archived (PDF) from the original on 11 August 2021. Retrieved 11 August 2021.
  45. ↑ Gosden, Emily (9 July 2021). "North Sea carbon capture plan unites big energy firms". The Times. No. 73519. pp. 46–47. ISSN   0140-0460.
  46. ↑ Mitchinson, James, ed. (20 October 2021). "Carbon project to bring thousands of green jobs". The Yorkshire Post. p. 5. ISSN   0963-1496.
  47. ↑ Laister, David (9 July 2021). "Humber and Tees unite for BEIS bid to back carbon capture and storage grand plan". Business Live. Archived from the original on 11 August 2021. Retrieved 11 August 2021.
  48. ↑ Gosden, Emily (9 July 2021). "North Sea carbon capture plan unites big energy firms". The Times. No. 73519. p. 46. ISSN   0140-0460.
  49. ↑ Doyle, Amanda (21 July 2021). "Humber and Teesside form East Coast Cluster". The Chemical Engineer. Archived from the original on 10 August 2021. Retrieved 10 August 2021.
  50. 1 2 Metcalfe, Richard; Thatcher, Kate; Towler, George; Paulley, Alan; Eng, Jeremy (July 2017). "Sub-surface Risk Assessment for the Endurance CO2 Store of the White Rose Project, UK". Energy Procedia. 114: 4313. doi: 10.1016/j.egypro.2017.03.1578 .
  51. ↑ "What is Carbon Capture and Storage? | National Grid Group". www.nationalgrid.com. Archived from the original on 6 August 2021. Retrieved 11 August 2021.
  52. ↑ "UK government spent £100m on cancelled carbon capture project". BBC News. 20 January 2017. Archived from the original on 11 August 2021. Retrieved 11 August 2021.
  53. ↑ "Teesside chosen for UK's first net zero emissions power plant". BBC News. 13 July 2021. Archived from the original on 19 October 2021. Retrieved 19 October 2021.
  54. ↑ O'Connor, Rob (10 September 2021). "Atkins appointed to support development of Teesside net zero power plant". Infrastructure Intelligence. Archived from the original on 19 October 2021. Retrieved 19 October 2021.
  55. ↑ "New partnership to develop offshore CO2 transport and storage - Northern Endurance Partnership (NEP) - equinor.com". Equinor. 26 October 2020. Archived from the original on 6 August 2021. Retrieved 19 October 2021.
  56. ↑ "Zero Carbon Humber". zerocarbonhumber.co.uk. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  57. ↑ "H2H Saltend - Growing blue hydrogen in the UK - equinor.com". www.equinor.com. Archived from the original on 20 October 2021. Retrieved 19 October 2021.
  58. ↑ Metcalfe, Richard; Thatcher, Kate; Towler, George; Paulley, Alan; Eng, Jeremy (July 2017). "Sub-surface Risk Assessment for the Endurance CO2 Store of the White Rose Project, UK". Energy Procedia. 114: 4314. doi: 10.1016/j.egypro.2017.03.1578 .
  59. ↑ Spence, Horan & Tucker 2014, p. 6,258.
  60. ↑ "The Acorn Project". theacornproject.uk. Archived from the original on 16 November 2021. Retrieved 16 November 2021.
  61. ↑ Thomas, Allister (1 November 2019). "Shell gets green light to decommission North Sea Goldeneye platform - News for the Energy Sector". Energy Voice. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  62. ↑ Spence, Horan & Tucker 2014, p. 6262.
  63. ↑ Spence, Horan & Tucker 2014, p. 6,263.
  64. ↑ "Peterhead Project Fact Sheet: Carbon Dioxide Capture and Storage Project". Carbon Capture Technologies @ MIT. 15 November 2015. Archived from the original on 9 August 2021. Retrieved 9 August 2021.
  65. ↑ Frasr, Douglas (21 July 2021). "From one Acorn, can 20,000 jobs grow?". BBC News. Archived from the original on 21 October 2021. Retrieved 20 October 2021.
  66. ↑ McGrath, Matt (24 June 2021). "Climate change: Large-scale CO2 removal facility set for Scotland". BBC News. Archived from the original on 20 October 2021. Retrieved 20 October 2021.
  67. ↑ "Net zero announcement: UK sets out plans to cut greenhouse gas emissions". BBC News. 19 October 2021. Archived from the original on 19 October 2021. Retrieved 19 October 2021.
  68. ↑ "A Carbon Capture, Utilisation, & Storage Network for Wales" (PDF). gov.wales. 31 March 2021. p. 22. Archived (PDF) from the original on 20 October 2021. Retrieved 20 October 2021.
  69. ↑ Appunn, Kerstine (15 April 2021). "German industry urges new debate on carbon capture, storage and utilisation". Clean Energy Wire. Archived from the original on 2 November 2021. Retrieved 2 November 2021.
  70. ↑ Pershad, Harsh; Slater, Shane. "DEVELOPMENT OF A CO2 TRANSPORT AND STORAGE NETWORK IN THE NORTH SEA" (PDF). globalccsinstitute.com. Archived (PDF) from the original on 2 November 2021. Retrieved 2 November 2021.
  71. ↑ Beck, Lee (16 April 2021). "Carbon Capture in Germany: are industry, government and innovators starting to move?". Energy Post. Archived from the original on 2 November 2021. Retrieved 2 November 2021.

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