Near magma geothermal Presentation to Geoenergi 2015 02.09.2015 - - PowerPoint PPT Presentation

Near magma geothermal

Presentation to Geoenergi 2015 02.09.2015 Sturla Sæther

Classification: Internal 2012-06-01

Geothermal in general - Large untapped potential

2015-06- 10 2 Clas sifica

 Characteristics  Renewable, baseload, low cost  Resource potential: Japan, Indonesia, US/California, Mexico, East-Africa  Technologies:

• Conventional
• Enhanced Geothermal

Systems

• HTHP (Near magma

geothermal)  Deployment/potential  Only 12 GW installed capacity  Hydrothermal potential: 1000 – 2000 GW  EGS potential: 5100 – 12800 GW (0-5 km)  Moderate outlooks:

• IRENA 2030: 32 GW
• BNEF 2040: 28 GW
• IEA NPS 2040: 56

GW  Barriers  Access to resources  Risk profile  Long lead time  Policy step-up  FITs  Risk mitigation funds  Improved access  Exploration/drilling support from authorities  Access to survey data  R&D incentives

LCOE [$/MWh] by Bloomberg

Classification: Internal 2012-06-01 3

Technologies for geothermal power production Electrical production potential from ONE well

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3-6MW 4-15MW 3-8MW 30-50MW Production per well

Potential for near magma geothermal

Classification: Internal 2012-05-02 5

Opportunities in near magma geothermal

• High temperature wells close to magma

may provide high production rates per well and long lasting reservoirs by heat influx from magma plumes.

• High power production efficiency
• Deep geothermal projects may be

competitive without economic incentives and political support mechanisms.

• Geothermal is a renewable energy source

with base load characteristics.

• Exploitation of near magma geothermal

resources energy may be applicable for resources on-shore and on the longer term also off-shore.

Classification: Confidential 02.10.2013 6

Source: IDDP, Iceland

Significant R&D required

• Deep geothermal reservoir close to

magma a new topic − Limited experience so far

• Reservoir conditions and

permeability

• Reservoir productivity and stability
• Well design with respect to high

temperatures

• Challenging fluids characteristics
• Scaling and corrosion to be

handled

• Top side heat transfer - Geothermal

fluid/clean binary circuit

Classification: Internal 2012-06-01 7

Synergies with Oil and gas core competencies

Classification: Internal 2012-06-01 8

Classification: Internal 2012-06-01 9

Simplified near magma geothermal

Summary

• High production rates per well
• Long lasting reservoirs by heat influx from magma

plumes

• High power production efficiency
• Extensive R&D needed

Classification: Internal 2012-06-01 10

Thank you !

Questions?

Classification: Internal 2012-06-01 11