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VALLEY LONGWALL DRILLING P/L

VALLEY LONGWALL DRILLING P/L. CURRENT PROJECTS : Central Colliery Southern Colliery Grasstree Mine North Goonyella Mine Oaky Creek # 1 Oaky North Mine Daning Mine - China. Central , Southern & Grasstree. Our long term contracts are with Anglo Coal.

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VALLEY LONGWALL DRILLING P/L

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  1. VALLEY LONGWALLDRILLING P/L • CURRENT PROJECTS: • Central Colliery • Southern Colliery • Grasstree Mine • North Goonyella Mine • Oaky Creek #1 • Oaky North Mine • Daning Mine - China

  2. Central , Southern & Grasstree • Our long term contracts are with Anglo Coal. • Grasstree project has been on hold for some months as expected, while the mining dept.moves equipment u/g to begin development drivage. • Southern running two shifts up until x-mas.

  3. North Goonyella • Methane drainage for the 4 Nth Longwall block. • We have a Mecca stuck at a depth of 380 meters with a recovery attempt to start next week.

  4. Oaky #1 & Oaky North • Current project is for gas drainage. • Setting up of the drill site commenced this week. • Project to run up until x-mass.

  5. Daning Mine • Operated by SAADEC (Shanxi Asian American Daning Energy Company). • Longwall mine with designed annual production of 4 million tones. • Mining seam is the no. #3 seam. • Total seam thickness 3 meters. • Permeability 2 milidarcy on average.

  6. Daning Mine • Modeling was done by the Taiyuan University of Technology on a neighboring mine, no modeling was done at Daning itself. • Flow readings are taken using a pizometer. • Coring from the surface is not an option due to mountainous terrain & Gov. permits.

  7. Daning Mine • Total gas output at the surface stack: • April 2003 – 72130 m3. (Before VLD rig on site) • June 2003 – 90676 m3. (After • August 2003 – 109357 m3. (After 26,000m. of long hole drilling). • Whole mine average concentration of pure methane 65.05%.

  8. Daning Mine • Total holes rotary drilled 260 average length 120 meters. • DHM & camera, 78 holes average length 232 meters. • AMT Mecca Surveyed holes 33, average length 872 meters.

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