黑龙江省煤层气勘探前景分析——以鸡西、勃利盆地为例

CBM Exploration Prospects of Heilongjiang Province:Taking the Case of Jixi Basin and Boli Basin as Examples

随着我国天然气需求日益增大和国内外煤层气勘探开发技术的成熟,煤层气已经成为常规天然气现实的补充和接替目标。黑龙江省煤炭资源丰富,含煤盆地众多,煤层气资源潜力大,具有较好的勘探前景。通过对鸡西、勃利盆地钻井资料分析,评价了煤层特征并预测了城子河组煤层的厚度和空间分布。通过对煤层厚度、埋深和变质程度等因素综合分析认为鸡西盆地煤层好,含气量高,是黑龙江省煤层气勘探开发的重点探区。勃利盆地煤层分布广,含气量达到开发标准,但煤层薄,间距大,埋深较大,可做为煤层气勘探的远景探区。

With the growing demand for natural gas and well development of exploration and development technology of coalbed methane（CBM）,coalbed methane has become a reality supplement for conventional natural gas and succeeding objectives.Heilongjiang province rich in coal resources and has numerous coal basins and enormous CBM potential,thus has a good exploration prospects to CBM.Basing on the analysis to drilling data of Jixi and Boli Basin,the characteristics of coal seam were analyzed and evaluated and the coal seam thickness and distribution of the Chengzihe formation were predicted.Through the comprehensive analysis to coal seam thickness,depth and degree of metamorphism it is believed that Jixi basin contains good coal seam and has high gas content,is the focus of CBM exploration in Heilongjiang Province.Boli Basin has a widely coal seam distribution and the gas content of it has arrived to development standard,but the thickness of coal seam is thin,space between seams is large and the depth is deep.Boli basin can be regarded as a long-range exploration area of CBM.