Recommended
More Related Content
What's hot
What's hot (10)
Similar to Ultra deep geothermal
Similar to Ultra deep geothermal (20)
More from Alexandros Daniilidis
More from Alexandros Daniilidis (17)
Recently uploaded
Recently uploaded (20)
Ultra deep geothermal
- 1. Ultra Deep Geothermal - Exploring for high temperature heat in the Netherlands TUD Geothermal Get-together Donderdag 12 July, 2018
- 2. www.ebn.nl The energy transition challenge for heat From: Warmtevraag Energierapport 2016 Distribution of temperature of the heat demand <100 C: ~ 600 PJ From: EBN 2018
- 3. www.ebn.nl 3 Green Deal partners
- 4. www.ebn.nl 4 Dinantian (Lower Carboniferous) Carbonates are hot! Present day distribution of the Dinantian Carbonates in the Netherlands wells that drilled Dinantian strata carbonate platforms (proven) carbonate platforms (possible) carbonate platforms less likely (basin facies) Netherlands Belgium Germany Map modified from Boxem et al, (2016) • Depth range 1 – 5 km (or more) • Temperature gradient ~31 degrees / km ? ? ? ?
- 5. www.ebn.nl 5 Dinantian (Lower Carboniferous) Carbonates are hot! Potential for hydrocarbons and geothermal being explored at the same time • UGS project in Belgium • Exploration for hydrocarbons in Southern North Sea • Shallow geothermal projects • Green Deal - Ultra Deep Geothermal projects Netherlands Belgium Germany Map modified from Boxem et al, (2016)
- 6. www.ebn.nl 6 Predicting reservoir quality is a challenge Requires realistic input parameters (ranges) – porosity and permeability From Di Cuia et al. (2005) fault damage zone matrix porosity and permeability Background fractures fracture swarm 10’Sto100’sm FAULT ZONE matrix porosity and permeability fracture porosity and permeability fault damage zone Fracture swarms arrows indicate fluid flow
- 7. www.ebn.nl 7 Dinantian Carbonates are heterogeneous Seismic expression varies a lot (data density and quality as well) • Dinantian carbonate platform faulted and karstified • 2D lines 80’s – 90’s Bron: Yang et al. (2010)
- 8. www.ebn.nl 8 Dinantian Carbonates are heterogeneous Seismic expression varies a lot (and data density and quality as well) From Kortekaas and Jaarsma (2018) • Uithuizermeeden platform below Groningen gasfield • Reprocessed / PSDM 3D 90’s SW NE
- 9. www.ebn.nl 9 Dinantian Carbonates are heterogeneous Seismic expression varies a lot (and data density and quality as well) From EBN (2017) • Californie geothermal projects • 2 2D lines 2009 W E
- 10. www.ebn.nl 10 Dinantian Carbonates are heterogeneous Large variations in log porosity, severe losses, but sparse well dataset From Reijmer et al. , 2017
- 11. www.ebn.nl 11 Dinantian Carbonates are heterogeneous Californie geothermal projects producing from / injecting in this reservoir • well Cal-GT-01 drilled large cavity, well tested ~240 m3/hr • production from fractured / karstified fault zone and injection away from fault zone. Possibly Devonian part of the system as well? • the sparse G&G dataset leaves room for various hypotheses on production dynamics (Dominique Reith (2018, in progress)) reservoir modeling TNO
- 12. www.ebn.nl 12 Dinantian Carbonates are hot! predicting reservoir quality is a challenge • Multiple indications and examples of good reservoir quality in the Dinantian Carbonates – from wells and from seismic • Various (proven and unproven) reservoir types can be explored • sparse data density and mostly limited data quality at target depth requires a play-based exploration program, using analogues Ultra Deep Geothermal (UDG) program to assess geothermal potential of the Dinantian Carbonates
- 13. www.ebn.nl 13 Ultra Deep Geothermal Program (UDG) to assess high temperature GT potential of Dinantian Carbonates, below 4 km • Technical play-based - seismic acquisition / processing / interpretation, facies and diagenesis, petrophysics, static & dynamic reservoir models, temperature gradients, stress & seismicity, conceptual well and stimulation design, risk analyses • Non-technical program - business cases, stake holder management, communication, heat demand and surface system integration, financing • Activities should result in identification of 1-3 pilot UDG projects • Duration 3 years, ~25 FTE, € 28 million. • Strong government support
- 14. www.ebn.nl 14 In the lack of data, we need analogues 1) to predict reservoir quality 2) to take technical learnings from other projects • Use outcrops • Faults & fractures, diagenesis, stratigraphy, rock properties • E.g. Belgium, Germany, England, Ireland, Spain, Kazakhstan – choose the right ones… • Crossover - learn from oil & gas fields • Reservoir quality and performance (over time) • Operations and technical risks • Lots of (released / published) data and insights • Dinantian Carbonates in Caspian Sea (example next slide), Ukraine, England, UGS Belgium • Other (deep) carbonates
- 15. www.ebn.nl 1. Reservoir Quality 15 Example - Tengiz and other Caspian oil fields analogue for platforms in Dutch northern onshore in more than one way From Hoornveld, 2013 Caspian Sea Collins et al. (2014) Friesland / Groningen
- 16. www.ebn.nl 16 Example - Tengiz and other Caspian oil fields analogue for platforms in Dutch northern onshore in more than one way 1. Reservoir Quality 2. Technical learnings (including risks) ‐ Drilling, stimulation, completion and abandonment Collins et al. (2014)
- 17. Planning UDG program Exploration work program consortium A Exploration work program consortium B Exploration work program consortium C Exploration work program consortium D Exploration work program consortium E Exploration work program consortium F Pilot project 2018 >2020 2025 Follow up Project Follow up Project Follow up Project Outlook Safe and responsible Acceleration Follow up project Pilot project Pilot project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project Follow up project