U.S. Department of Energy Albuquerque Operations Office Geothermal Resource Exploration and...

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

0

500

1000

1500

2000

2500

3000

3500

4000

4500

0 50 100 150 200 250 300 350 400 450 500

Degrees F

Dep

th (

ft)

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

0

100

200

300

400

500

600

0 50 100 150

Temperature (C)

Dep

th (

m)

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

0

100

200

300

400

500

600

700

0 50 100 150

Temperature (C)

De

pth

(m

)

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

0

200

400

600

800

1000

1200

1400

0 100 200 300

Temperature (degrees C)

De

pth

(m

)

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

0

100

200

300

400

500

0 50 100 150

Temperature (C)

Dep

th (

m)

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