Oil, Gas and CBM Wells Near Coal Mines - Office of Fossil Energy
Oil, Gas and CBM Wells Near Coal Mines - Office of Fossil Energy
Oil, Gas and CBM Wells Near Coal Mines - Office of Fossil Energy
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Dewatering<br />
Pump<br />
To<br />
Pipeline<br />
Non-producing<br />
Gob Well<br />
4 – 10<br />
Dewatering<br />
in.<br />
Pump<br />
Cased Hole<br />
7 to 12 inch<br />
Cased or<br />
Uncased<br />
Hole<br />
Up to 2 miles<br />
To<br />
Pipeline<br />
800 to 2,500 ft.<br />
IC Engine<br />
Producing<br />
Gob Well<br />
Blower<br />
To<br />
Pipeline<br />
CH 4 Vent<br />
Or To<br />
Compressor<br />
Equivalent<br />
Vertical Holes<br />
Production Well<br />
12 - 18 in.<br />
Cased Hole<br />
Directional<br />
Hole System<br />
Perforations<br />
<strong>Coal</strong> Seam<br />
Caved<br />
Strata<br />
Rat<br />
Hole<br />
Frac<br />
Stimulation<br />
Direction<br />
Directional <strong>of</strong> Mining<br />
Branches<br />
3 – 4 in.<br />
Uncased Hole<br />
Gob<br />
<strong>Coal</strong> Seam<br />
<strong>Coal</strong> Seam<br />
Longwall<br />
Cross-section<br />
Vertical <strong>Wells</strong><br />
Rat<br />
Hole<br />
Gob <strong>Wells</strong><br />
Cross-section<br />
Surface Directional Well<br />
Directionally Drilled Branches<br />
Cross-section<br />
Plan View
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