Optimization of abandoned gob methane drainage through well placement selection

摘要: Abstract Abandoned gob methane (AGM) is not only a greenhouse gas but also source of clean energy. To optimize the vertical well location for AGM drainage, drainage simulation experiments different locations were carried out using “simulated experimental system drainage”. A numerical model FLUENT was established. The control range wells at determined results from model. experiment showed that O-ring fissure zone most suitable area well. Yangquan Coal Mine No. 3 in China an abandoned coal mine with massive coalbed reserves. Vertical #1 located within according to results. field test flow rate reached 3.77 m3/min, and production 33,000 m3 total after 226 h suction. In order achieve higher concentration, burial depth should be taken into account during drainage.