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– Electricity Production – West Texas

A Presentation To The: New Mexico Geothermal Energy Working Group. Tuesday, May 13, 2008 Santa Fe, NM. An Example For New Mexico. – Electricity Production – West Texas. Dr. Richard J. Erdlac, Jr. Energy America, Inc. Energy America Geothermal, LLC Midland, Texas.

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– Electricity Production – West Texas

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  1. A Presentation To The: New Mexico Geothermal Energy Working Group Tuesday, May 13, 2008 Santa Fe, NM An Example For New Mexico – Electricity Production – West Texas Dr. Richard J. Erdlac, Jr. Energy America, Inc. Energy America Geothermal, LLC Midland, Texas

  2. Energy America Inc. Energy America Geothermal, LLC Trading & Supply POWER GEOEXCHANGE

  3. Presentation Overview 1) New Mexico sits astride a high near surface heat flow trend that stretches from Colorado south to the Mexican border. 2) New Mexico is part of a broad trend of states with deeper oil and gas wells that extends from the Gulf Coast NNW to Montana. 3) West Texas Permian Basin geothermal investigations suggest that parts of New Mexico may also have geothermal power potential from deeper oil and gas wells. 4) Trans-Pecos region of West Texas has promise of geothermal power as part of the Rio Grande Rift, stretching from the Big Bend of Texas through New Mexico and into Colorado. 5) Geothermal energy may have the highest capacity factor of all the renewable energy resources available for power generation.

  4. Geothermal For Electrical Production Existing geothermal power generation has focused on western states where high heat flow exists at or near the Earth’s surface.

  5. Subsurface BHT Data – AAPG / USGS New opportunity exists through the many oil and gas wells that have been drilled in the deeper sedimentary basins that have encountered hot temperatures.

  6. Subsurface BHT Data – AAPG / USGS New opportunity exists through the many oil and gas wells that have been drilled in the deeper sedimentary basins that have encountered hot temperatures.

  7. Subsurface BHT Data – AAPG / USGS Delaware & Val Verde Basins Blue = 151 to 178oF (66 to 81oC) Green = 179 to 288oF (82 to 142oC) Red = > 289oF (> 143oC) Dark Gray Area = 302oF (150oC) Isotherm

  8. Subsurface BHT Data – Gulf Oil – 1982

  9. GDS – 321,000 Wells & Locations May 2004 GDS – 44,525 Wells & Locations May 2004 GDS Well Data Base 0 to 4,999 Feet 33,481 Wells & Locations 5,000 to 11,999 Feet 8,802 Wells & Locations 12,000 to 30,000 Feet 2,242 Wells & Locations

  10. RS2RD2 Maximized Delaware – Val Verde Basin BHT Data RS2RD2 Maximized

  11. Delaware – Val Verde Basin BHT Data

  12. Delaware – Val Verde Basin BHT Data

  13. At 200oC : Pecos dT/dZ = 58.8oC At 200oC : Gomez dT/dZ = 49.8oC At 200oC : Puckett dT/dZ = 75.0oC Delaware – Val Verde Basin BHT Data At 200oC : Grey Ranch dT/dZ = 50.0oC

  14. San Juan Basin Permian Basin Impact On New Mexico Blue = 151 to 178oF (66 to 81oC) Green = 179 to 288oF (82 to 142oC) Red = > 289oF (> 143oC)

  15. Heat Flux Trans Pecos, Texas – Rio Grande Rift

  16. Trans Pecos, Texas – Rio Grande Rift

  17. 2.753oC/100m All points. Below threshold jump. The points defining well gradients were plotted as t-d values (right), with purple and blue values combined representing all of the BHT records and with blue values alone representing t-d points below the 2.753oC/100m threshold change. Trans Pecos, Texas – Rio Grande Rift

  18. Rio Grande Rift Estimated Temperature at 4 KM Sedimentary Thickness – Contour Interval 1500 m Idaho Nat Lab Geothermal Technologies Program & Idaho Nat Lab Geospatial Sci & Eng Impact On New Mexico

  19. Importance Of Geothermal Power • A major importance of geothermal power production is that it has a high capacity factor. • Thus geothermal impacts base load electrical demand. Geothermal Energy Association, West Coast Geothermal Finance & Development Workshop, May 2007

  20. Conclusions • New Mexico sits astride a high near surface heat flow trend that stretches from Colorado south to the Mexican border. • New Mexico is part of a broad trend of states with deeper oil and gas wells that extends from the Gulf Coast NNW to Montana. • West Texas Permian Basin geothermal investigations suggest that parts of New Mexico may also have geothermal power potential from deeper oil and gas wells. • Trans-Pecos region of West Texas has promise of geothermal power as part of the Rio Grande Rift, stretching from the Big Bend of Texas through New Mexico and into Colorado. • Geothermal energy may have the highest capacity factor of all the renewable energy resources available for power generation.

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