中国低煤阶煤层气资源区块评价方法讨论——以准噶尔盆地为例

DISCUSSION ON THE BLOCK EVALUATION METHODS FOR LOW RANK CBM RESOURCES IN CHINA:A Case Study of the Junggar Basin

针对国内低阶煤层气储量大、开采困难等特点,运用中高煤阶煤层气区块评价的方法,层次分析法以及模糊数学综合评价法,结合准噶尔盆地煤层气资源特征,得出了一套适合国内主要低煤阶煤层气区块评价的方法.并运用准噶尔盆地煤层气的各项数据进行计算来验证这种方法,确定了本方法的正确性、可靠性;最后通过讨论确定本文方法对于其他低煤阶含煤盆地的煤层气资源评价具可信性及普遍性.

To counter the characteristics of big reserves and mining difficulties of the low rank CBM in China,the method of high-rank CBM block evaluation is adopted,with AHP and fuzzy comprehensive evaluation method,combining the characteristics of CBM in Junggar Basin,to set up the block evaluation method suitable for the low-rank CBM reserves in China.Verification with the CBM data from Junggar Basin has confirmed the validity and reliability of this method.The credibility and universality of the evaluation for CBM resources in other low-rank coal basins are also discussed.