From an Oil Field Waste Stream - Electrical Power

3rd B.C. Unconventional Gas Technical Forum

Lyle A. Johnson, PE,

RMOTC, U.S. DOE

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RMOTC Location

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C.

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Geothermal Potential

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C.

17-WX-21Madison and Tensleep

Possibly 35 MBWPD flowing

57-WX-3Madison and Tensleep

Possibly 10 MBWPD flowing

TENSLEEP PRODUCING AREA

OTHER POSSIBLE TENSLEEP SOURCE WELLS AND DEEPENING

CANDIDATES

Precambrian granitic

basement structure

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Water Treatment Pond

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Water Treatment Ponds

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Project Goals

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

The project is to validate the use of a binary geothermal power generation system that uses hot produced oilfield water to produce electricity.

Test the system for a minimum of 1 year

Provide a technical and economic analysis of the process

Testing partner: ORMAT Nevada, Inc.

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Projected Generator Performance

Flow Rate: 40,000 bpd (6,358 m3/d)

Inlet Temperature: 170°F (77°C)

Outlet Temperature: 152°F (67°C)

Ambient Temperature: 50°F (10°C)

Generator Gross Power: 180 kW

Net Power Output: 132 kW

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

Unit designed and built by Ormat Systems Ltd, Yavne, Israel.

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5000 Barrel Tank Moving

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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5000 Barrel Tank Moving

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Setting of Vaporizer

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Setting of 2nd Condenser

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Cooling Fan Motor

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Cooling Fans

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Working Fluid Piping

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Return Vapor Piping

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Completed Unit

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Operational Trends

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Daily Power Fluctuation

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Daily Ambient Temperature

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Operational Summary

On Line Total, Total (Actual) days 161 (151)Inlet Brine Temperature °F 195-198

°C 90-92Inlet Brine Volume Barrels 3,047,370

m3 484,493

Net Power Produced kilowatt hour 586,574Overall

On line percentage % 91Average net power kilowatt 159

Overall w/o Field DowntimeOn line percentage % 97Average net power kilowatt 171

Avg. Net Power Jan-Feb 2009kilowatt 200

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C

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Future Plans

Perform equipment checkout, maintenance and repair, to include:

• Change system control to a source control loop with an additional control valve, and

• Install vapor bypass line around turbine to ease unit starting, and

• Install a vibration monitoring system, and• Heat trace all oil lines to prevent oil thickening.

Continue testing of the unit until at lease September 2009

3rd B.C. Unconventional Gas Technical Forum, Victoria, B.C