潘庄井田煤层气次级构造控气规律.pdf

潘庄井田煤层气次级构造控气规律 -77· 潘庄井田煤层气次级构造控气规律 彭金宁 傅雪海 毋丽娟 [中国矿业大学资源与地球科学学院，徐州221008] 摘要本文从构造控气类型、次级构造j空气特征等方面，运用柯造地质学、煤层气地质学理论知识系统 探讨了潘庄井田煤层气次级构造控气规律。认为大型褶皱的向斜和背斜，总体上表现为向斜部位富气，背斜 部位贫气。产气区由于大型断层的存在而发育大量的裂隙，产生导气带，加速了煤层气的逸散，不利于煤层气 的赋存。 关键词煤层气f次级构造I潘庄井田 ofthe Tectonic Study SecondaryMethane—controlling ofCoalbed rules Methanein Area PanzhuangMining FuXuehaiWu PengJinning Lijuan ofResourcesandC-eoscience，Chinaof and I-College UniversityMiningTechnology，Xuzhou221008] tothe of andthe Abstract analysistectonic patterns characteristicsof According methane-controlling tectonic and thescientific oftectonicsandcoalbedmethane secondarymethane—controllingt using thinking rulesof tectonic werediscussedin area．With geologytthesecondarymethane-contro!llngPanzhuang mining anticlineofthe thesynclineand folds，thereisfavorabletocoalbedmethane’senrichedatthe large being and attheanticline faultsandfracturesare incoalbedandits syncline poor portion．The developed portion roof，thus thecoalbedmethanefrom isnotfavorabletocoalbed promoting beingupwarddissipated，which methane’senriched． being wordscoalbed structure area methane；secondary Key tPanzhuangmining 0引 言 潘庄井口是山西沁水盆地中二十余个井田之一，现有煤层气排采井7口，近期又施工了煤 层气井100余口。其煤层气勘探开发处于国内领先水平，一个具有商业性价值的煤层气田轮廓 已初现端倪。但因其地质构造复杂，次级