U.S. Department of Energy Albuquerque Operations Office Geothermal Resource Exploration and...
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U.S. Department of EnergyU.S. Department of EnergyAlbuquerque Operations OfficeAlbuquerque Operations Office
Geothermal Resource Geothermal Resource Exploration and DefinitionExploration and Definition
GRED ProgramGRED ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Program Management TeamProgram Management TeamDan Sanchez, DOE/ALEd Hoover, SNLNorm Warpinski, SNLAllan Sattler, SNLRay Fortuna, DOE/HQ
FundingFunding $900,000 — FY00
$2,000,000 — FY01$1,775,000 — FY02$3,500,000 — FY03 (YTD)
TBD — FY04
GRED ProgramGRED ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Goals and ObjectivesGoals and Objectives– Develop collaborative efforts to support the
exploration for and definition of new geothermal resources
• Mitigate The Initial Risk Of Confirming A Reservoir• Encourage Geographic Diversity
– Effect an increase in the electrical power generated from geothermal energy
• Overall Generating Capacity• Number Of States
EE-2C Program AreaEE-2C Program Area– Exploration and Drilling
GRED ProgramGRED ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Program ApproachProgram Approach– Geographic Diversity Focus
• GRED– New States, New Fields, Extensions
• GRED II– New States, New Fields
– Promote As Many Awards As Possible• Require Slim-Hole Drilling
– DOE Cooperative Agreements• Preferred Contractual Instrument• Flexibility
GRED ProgramGRED ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Scope of WorkScope of Work– Phase I
• Exploration Work To Site A Test Well– Geologic Studies, Geophysics, Geothermometry
– Phase II• Slim-Hole Drilling
– Logging, Core, Short Tests
– Phase III• Well Testing & Reservoir Assessment
Geophysics Drilling
Testing Assessment
Phase III :Testing of the well forreservoir qualities, flow capacity & thermal characteristics
Rye Patch Testing
Phase II :Drilling of a test well toaccess the reservoir and evaluate geologic features
Phase I :Exploration geophysics to determine optimum location for a test well
Potential of the new resource to provide geothermal power
Lightning Dock Temperature Contours
Figure 1. Glass Mountain 88-28 Temperature Logs
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11/7/1994 (1 day w/o circ)
11/13/1994 (7 days w/o circ)
10/6/01 Average (3 days w/o circ.)
11/6/01 (34 days w/o circ.)
Water Level
Boiling Pt Curve
Casing Shoe
Fourmile Hill Temperature Logs (454° Max)Steamboat Hills Velocity Model
GRED Science and Engineering AreasGRED Science and Engineering Areas
Lightning Dock
Cove Fort/Sulphurdale
Blue Mountain
Rye Patch
SteamboatU-boat
Fourmile Hill
• Rye Patch Presco Energy, LLC
• Blue Mt. Noramex Corp.
• Cove Fort Utah Municipal Power Agency
• Fourmile Hill Calpine Siskiyou Geothermal Partners
• SteamboatSB Geo, Inc.
• U-Boat Coso Operating Unit (Caithness)
• Lightning Dock Lightning Dock Geothermal, Inc.NV UT CA NM
GRED I – Site LocationsGRED I – Site Locations
GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Rye PatchRye Patch– Presco Energy, LLC
• Completed Phase II & III
– Accomplishments• Well Drilled To 643 m
– Intermediate Limestone Target
– Polyurethane Foam Treatment
• Successful Flow Testing– ~ 6 Hour Test
» 150°C Fluid» 2,000,000 lb/hour
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GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
SteamboatSteamboat– S.B. Geo, Inc.
• Completed
Phase II & III
– Accomplishments• 2 Wells Drilled
– 610 m» Cored From 235 m to TD
– 297 m» Cored From 152 m to TD
• Temperatures Comparable To Other Nearby Wells• Testing Recently Completed
GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Blue Mountain– Noramex Corp.
• Completed Phase II• Beginning Phase III
– Accomplishments• Successfully Drilled
650m Well• 150° C Temperature
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GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Fourmile HillFourmile Hill– Calpine Corporation
• Completed Phase I
– Accomplishments• Temperature Gradient Well
Completed– 1346 m Depth
– 230°C Maximum Temperature
– Phase II Work Ongoing
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Temperature (degrees C)
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Fourmile HillTemperatureSurvey
GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Cove Fort/SulphurdaleCove Fort/Sulphurdale– Utah Municipal Power
Agency• Completed Phase I & II
– Accomplishments• Magnetic & Resisitivity
Surveys Completed– Several Possible Targets
• Well Drilled To 598 m– 157° C Temperature
• Complicated Geologic Structure
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GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Lightning DockLightning Dock– Lightning Dock, Inc.
• Completed Phase I
• Beginning Phase II
– Accomplishments• Completed Geophysical
Surveys– Aeromagnetic– Gravity– Resistivity– Seismic
• Targeting Well
Site In Complex
Structural
Environment
Lightning DockLightning DockGravity & MagneticGravity & MagneticSurvey ResultsSurvey Results
GRED I ProgramGRED I ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
U-BoatU-Boat– Coso Operating Unit
• Completed Phase I
– Accomplishments• Completed
Geophysical Surveys– Gravity
– Microseismic
– Seismic
• No Phase II Planned
MEQSeismicGravity
GRED II ProgramGRED II ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
Second Round Program (GRED II)Second Round Program (GRED II)– Focus On Non-Producing Sites– Solicitation issued, April 2002– Solicitation closed, June 2002– Financial Assistance Awards, September 2002– 7 Successful Projects
• 5 States• All Non-Producing Sites
GRED II – Site LocationsGRED II – Site Locations
Animas Valley, NMRaft River, IDSan Francisco Mt., AZArnica Sink, CATruckhaven, CABlue Mt, NVFly Ranch, NV
AZ CA ID NM NV
GRED ProgramGRED ProgramGeothermal Resource Exploration & DefinitionGeothermal Resource Exploration & Definition
ConclusionsConclusions– Successful GRED I Program Is Nearly Complete
• 7 Projects Funded (4 States)• 5 Projects Should Progress Through Phase III• Significant Potential In These 5 Sites
– GRED II Initiated• 7 New Projects Funded (5 States)
– Overall Program Is Successfully Encouraging New Exploration & Reservoir Confirmation