IDDP presentation at DOSECC meeting 2005

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Iceland Deep Drilling Project
Gudmundur Ómar Fridleifsson (PI) Project Manager
for IDDP Iceland
Wilfred Allan Elders (PI) University California
Riverside USA
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IDDP
The Iceland Deep Drilling Project
www.iddp.is
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Earthquake frequency (0 5 on Richter scale)
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Simplified model of a high-temperature geothermal
system
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The Icelandic energy consortium
(National Energy Authority)
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International Scientific Continental Drilling
Program (ICDP) supported meetings and 2
Workshops in 2001 and 2002
A team of international scientists has already
been established and is ready to participate
60 research proposals waiting for a go ahead
100 to150 international scientists and engineers
are involved, from 15 countries
Status 2005 Response for funds for scientific
drilling by ICDP (1.5 M USD?) and by NSF (2.7 M
USD?) Candidate drillhole was drilled late in
2004 and completed to 3.1 km depth in February
2005. Cost to Hitaveita Sudurnesja 5 M USD
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Economic Goals

• The IDDP is a long-term geothermal research
  program, established 5 years ago by a consortium
  of Icelandic energy companies and the State
  of Iceland. The program is expected to continue
  for the next 15 years (2005- 2020) and to involve
  at least three 4-5 km deep drillholes
• Its purpose is to improve the economics of
  geothermal energy by producing supercritical
  hydrous fluids from drillable depths
• The IDDP feasibility study indicates that
  producing supercritical hydrous fluid is
  feasible, while it requires 4-5 km deep wells to
  reach temperatures of 450-600C. Power output
  from such wells compared to conventional wells
  may increase by a factor of 10 from some 4-5
  MWe to some 40-50 MWe.

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Temperatures in many high-T wells in
Iceland follow the BPD-curve with increasing depth
Examples from Krafla (K) Nesjavellir
(NJ) Reykjanes (RN)
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IDDP
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2005
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Reykjanes geology
Lavas, sediments, tuffs and pillow breccias
Sheeted dyke complex
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Basic Funding Model

• Industry/government consortium funds costs
  equivalent to drilling and testing an exploration
  well
• Science agencies fund costs of sampling, coring
  and testing required by the science program and
  subsequent studies

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Million 0 2 4
6 8 10 12
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spot cores
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DOSECC
Drilling, Observation and Sampling of the Earth's
Continental Crust
DOSECC has a hybrid coring system DHCS (shown in
red) that can be fitted to a conventional rig.
The IDDP costestimate is based on using this
equipment
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Coring services from Baker Huges (Christensen)
for spot coring was tested in April 2005
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1st spot core collected in 2005
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The IDDP Work Plan
Step I IDDP feasibility study (2001-2003)
International collaboration established.
(Value 1 M USD)
Step II Detailed planning and funding for
drilling (2003-2005)
(cost 0.75 M USD)
Step III First drillhole (Phase 1 drilled to
3.1 km in 2004-2005) Phase 2, planned for
deepening in 2006 to 4 km (Phase 3 planned for
continuous core drilling to 5 km in 2007
(Cost up to 16 M USD)
Step IV Fluid handling and pilot study (Phase
4) Should commence in 2008-2009
(Estimated cost 6 M USD)
Step V Drilling and testing of holes 2 and 3
(2010-2020). (Estimated cost
up to 44 M USD?)
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Funded (5 M )
Cost 5 M (1.3 M from ICDPNSF) (3.7 M
request from DV)
Cost 6 M (2.1 M from NSF ICDP) (3.9 M
request from DV)
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FUNDING MODEL DRAFT pending approval
Work in progress
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Search for international funds

• ICDP has funded our science activity 3 times
  prior to 2005 first in 2001, then in 2002 and
  in 2004 - (altogether 0.25 M )
• In 2005 ICDP responded to our funding request for
  coring (1.5 M ?)
• In 2005 the US NSF responded to our funding
  request for coring (2.7 M ?)
• IODP has refused to accept a proposal from IDDP
  as we will be drilling on land
• European Commission Framework Programs (EC-FP6)
  does not fund drilling directly We submitted a
  proposal for building high-temperature downhole
  tools in collaboration with France, Germany,
  Greece, Luxemburgh and UK, requesting 3 M Euros.
• EC-FP7 the 7th framework program begins in
  2007. We intend to request considerable funds for
  the IDDP phase 4 fluid flow tests in 2008-2009

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Effects of phased drilling program

• Positive effects
• Opportunity for flow testing and fluid sampling
  after each drilling phase
• Science and technical program can be re-evaluated
  after each phase
• Funding phased over several years
• Meets environmental restrictions during bird
  nesting season.
• Negative effects
• Increased mobilization costs
• Currency fluctuation affects cost estimates in
  different currencies
• Inflation e.g. price of steel casings increased
  by 100 in 2.5 yr
• Stressing the casings and cement due to repeated
  thermal cycling

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Advantages of the Industry/Government/Science
Collaboration

• Feasibility study and site selection studies
  provided by industry
• Huge data base of geophysical and borehole data
  available
• First phase borehole provided by industry (with
  alternative choices possible)

• Sharing costs of deepening and sampling
• Industry technical experience and expertise
• Diverse advanced scientific studies.

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Science Plan

• The IDDP well will produce fluid samples from
  tests at 3, 4 and 5 km
• Drill cuttings down to 4 km depth, and spot
  cores from 3 - 4 km
• Drill cores from 4 - 5 km depth
• Pressure, Temperature and flow-meter logs
  over the whole drilled interval

• Depending on the fluid P, the drilled interval
  between 3 and 4 km should
• approach geochemical and P-T conditions
  similar to those of black smokers

• The drilling to 5 km is designed to penetrate
  into supercritical fluids which must underlie
  black smoker hydrothermal systems, and which play
  an extremely important role in heat transfer and
  hydrothermal alteration

• Supercritical fluids have greatly enhanced
  rates of mass transfer and chemical
• reaction

• These environments have never been available
  for such comprehensive direct
• study and sampling

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Wider Research Goals

• Mid-ocean rifting and hot spots.
• Sheeted dike complexes.
• Heat transfer from magma.
• Natural supercritical phenomena.
• Deep permeable convection cells.
• Hydrothermal water-rock reaction.
• Fracturing, self-sealing and permeability.
• Techniques drilling, well completion and
  logging.
• Scientific, industrial, and economic spin-offs.

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2005
www.iddp.is
Welcome to the 1st IDDP drillsite
Thanks for your attention !