Development status and technical progress of China coalbed methane industry

with the investigation on the exploration and development projects of China calbed methane conducted in the recent years,the paper summarized the status and features of the caled methane exploration and development in Chin . with the coabed methane exploration expanded from North China to Southwest china and Southwest China and from the high rank cal to low rank cal.the coalbed methane producion was ste dily increased and the majrcalbted methane fedos werein an initil scale and could support the development of were calbed methane industr . The paper stated the majontechical development tendency ofthe present coabed methane . The exploration technical means were continuously deeening and the activated ihydrauli fracturing technology and technique are further optimized in ofder to mee cifferent reservoirfeatures. The new reconstruction technology of the producion increased is continuously discovered and formed. The high attention was made to the drainage technology and gas drainage management ofthe coalbed methane wells, The study on the geology of the calbed netane development was closy to the requirements of the coaloed netane industy Finally:the paper provided the problems exsted in the coalbed mnethane industry and the development tendency