霍林河盆地煤层气储量及有利勘控区预测

Forecasting the coalbed gas’s storage and favorable exploration plot in huolin basin

针对霍林河盆地良好的地质特征,为发展煤层气资源预测分析.指出煤的镜质组反射率多在0.5%～0.6%之间,煤质含气量最高为7.7 m/t.煤质中煤层气含量以及煤层气中甲烷含量随深度加大而迅速增加.400 m以下为甲烷带,400m以上为甲烷-氮气带.并对含气量进行了预测,500m以下煤层气含量约3.0～7.7m3/t煤计,霍林河盆地煤层气远景储量在268.5×108～689.2×108m3之间.同时,指出了有利于煤层气形成和勘探的有利地段,9-73孔,21-11孔附近地区为最有利煤层气勘探区.

Directed toward the well-known geology trait of Huolin basin,forecasting and analyisting has been made for tapping its coal bed gas,and points out that most of the reflecting rate of coal’s virtinoid group are between 0.5%~0.6 %.Coalbed methane is up to 7.7m3/t.The content of coal bed gas and methane rise quickly with the depth of coal bed .Under 400m is methane band ,and up is methane-nitrogen band,and make the forecasting of its content.,the content of coal bed gas is between 3.0~7.7m3/t under 500m.the coal bed gasis possible ore og Huolin basin is between 268.5×108~689.2×108m3.And point out the favorable plot for its formation and exploration..The favorable plot for exploration is near the pore 9-73and pore 21-11.