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Analyzing Changes in the #6 Coal Seam and Geologic Features Impacting Mining Operations

This report examines the #6 coal seam through detailed modeling and highlights both unchanged and altered geological features. Key aspects include the consistent thickness and strength of the Brererton Limestone, alongside concerns for longwall mining due to robust roof conditions. Notable changes in the #6 coal thickness, energy shale presence, and sulfur content are discussed, along with implications for mining operations. The study also addresses fault lines and drilling patterns that may influence future extraction strategies.

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Analyzing Changes in the #6 Coal Seam and Geologic Features Impacting Mining Operations

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Presentation Transcript

  1. Modeling the Project Coal Seams

  2. The #6 Coal • Things that did not change • Thickness of Brererton Limestone 20 ft • Strength of Brererton Limestone • Massive almost indestructible roof • Good news for bolting • Bad news for longwall • Underclay 3 ft • Strength of underclay 1000 psi • Compared to coal strength 2500 psi almost guarantees that floor strength will govern pillar design

  3. #6 Coal Things that Changed • Thickness of #6 coal • Likely guarantees both minable and unminable areas • Presence of Energy Shale • Sulfur content of #6

  4. Finding Fault Distance = 200 ft.

  5. Which Way Did It Go? Lines of Drill holes

  6. Do You See Anything? Distance 2,600

  7. Implication

  8. Might Be Where I Guessed Distance 6,600 feet

  9. Another Line

  10. I May See the Expected Pattern

  11. Searching for Channels

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