Directional Drilling Applications |
| Exploration in Advance of Mining |
Geologic Anomalies
Fault Exploration PDF
Intrusive Anomalies PDF
Coal Characterization PDF
|
Old Works Delineation
30 CFR 75.388 Exploration of Old Works PDF
30 CFR 75.388 Exploration of Old Works by Physical Detection PDF
30 CFR 75.388 Exploration for Old Works from Surface PDF
|
| Borehole Accuracy |
Borehole Placement Accuracy PDF
Precision Drilling PDF |
| Water Transfer Boreholes |
De-Watering Overlying Mine Workings PDF
Horizontal Water Drainage PDF
Highwall Drainage PDF
Overlying Water Drainage PDF |
| Methane Recovery Boreholes |
Inseam Degasification Boreholes PDF
Commercial Coalbed Methane Recovery from Highwall PDF
Parabolic Gob Vent Boreholes PDF
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