Services > Coal Bed Methane Exploration Intra Sedimentary Mapping Gammasense Airborne Gravity / Magnetics Land Gravity and GPS Survey Horizontal Gradiometer Survey Electromagnetic Surveys Ground Resistivity / Electrical Imaging Data Processing Methane gas has been a problem in underground coal mines for a long time. Normally it is drained through lateral & vertical drillholes around the active mining operations. The gas is vented through mine ventilation into the atmosphere. Largest and fastest growing contribution of Methane is from well fields in non-mineable coal seams, or coals not directly associated with mining. In 2000, CBM accounted for 7% total natural gas produced, and 9% of proven dry gas reserves. Most coals contain some methane, but gas cannot be produced without the presence of an open fracture network. In coals, these fractures are called “Cleats”. Current technology can recover approximately 1/6th the suspected volume stored. However, to be a viable energy resource, it has to satisfy the following conditions: i) Must be buried at least 60 to 70 m beneath the surface, ii) Must be below water table to entrap the gas iii) Must have sufficient open fractures, “cleats” for reasonable flow rates. At AMG group, we are pleased to offer you the following technologies for effective exploration of coal bed methane: