中国煤层气
中國煤層氣
중국매층기
CHINA COALBED METHANE
2011年
5期
13-16
,共4页
大佛寺煤矿%低煤级%煤层气%资源潜力
大彿寺煤礦%低煤級%煤層氣%資源潛力
대불사매광%저매급%매층기%자원잠력
Dafuosi Coal Mine%low rank coal%CBM%potential of resources
鄂尔多斯盆地低变质煤的煤层气资源量丰富,部分地区的煤层气勘探已显示出较大潜力。彬长矿区大佛寺矿属于高瓦斯矿井,矿井瓦斯涌出量高达155.49m3/min。大佛寺矿主要为低变质的长焰煤,煤层发育,目标煤层稳定,厚度大、埋藏浅,气含量相对较高,煤层气资源量丰富,地面煤层气抽采潜力大;主要目标煤层透气性系数高,属于可以抽采煤层,井下采煤工作面瓦斯抽采率超过73.2%,地面煤层气抽采气井产气量达到工业气流,均显示出较好的抽采潜力。
鄂爾多斯盆地低變質煤的煤層氣資源量豐富,部分地區的煤層氣勘探已顯示齣較大潛力。彬長礦區大彿寺礦屬于高瓦斯礦井,礦井瓦斯湧齣量高達155.49m3/min。大彿寺礦主要為低變質的長燄煤,煤層髮育,目標煤層穩定,厚度大、埋藏淺,氣含量相對較高,煤層氣資源量豐富,地麵煤層氣抽採潛力大;主要目標煤層透氣性繫數高,屬于可以抽採煤層,井下採煤工作麵瓦斯抽採率超過73.2%,地麵煤層氣抽採氣井產氣量達到工業氣流,均顯示齣較好的抽採潛力。
악이다사분지저변질매적매층기자원량봉부,부분지구적매층기감탐이현시출교대잠력。빈장광구대불사광속우고와사광정,광정와사용출량고체155.49m3/min。대불사광주요위저변질적장염매,매층발육,목표매층은정,후도대、매장천,기함량상대교고,매층기자원량봉부,지면매층기추채잠력대;주요목표매층투기성계수고,속우가이추채매층,정하채매공작면와사추채솔초과73.2%,지면매층기추채기정산기량체도공업기류,균현시출교호적추채잠력。
CBM resources of low-rank metamorphosed coal in Ordos basin is abundant,and exploration of CBM in part of the basin has shown great potential.Dafuosi mine in Binchang mining area is highly gaseous mine,the maximum emission of coal mine gas reaching 155.49m3/min.Coal in Dafuosi mine is mainly low-rank metamorphosed long-flame coal.Coal seams are well-developed.The target coal seams are regular,with great thickness,shallow burial depth,and relatively high gas content.The CBM resources are abundant,and the potential for surface extraction is high. The permeability factor of the major target seams is high.These seams are extractable.The gas drainage rate of underground coal face exceeds 73.2%.The gas production from surface well reaches commercial gas flow,indicating good drainage potential.
