The concept of “Coalbed Technology” (=CBT) was introduced. The CBT consists of various technologies related to the energy recovery from coalbed and the multi-pourpose use of coalbed. These technologies are consisted of the following development and utilization methods of coalbed. They are; surface coal mining, underground coal mining, gas drainage, coalbed methane, undeground coal gasification, underground coal combustion, underground coal liquefaction, underground coal pulverization, underground gas storage, cavity filling and underground disposal of waste.
Combining these methods for increasing the yield and optimizing the economy, the concept of Integrated Coalbed Development System (=ICODES) is proposed. The importance of making a long-term plan for developing and utilizing the coalbed in considering these technologies is discussed.
