海拉尔盆地呼和湖凹陷煤层气资源潜力分析
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摘要
利用钻井和地震资料,研究了呼和湖凹陷煤层的发育与分布情况,确定了煤层的热演化程度和气测异常等;结合煤层含气量参数,预测了凹陷内的煤层气资源前景。结果表明,呼和湖凹陷煤层气资源量约为7.43×1011 m3,远远超过了前人对整个东北区煤层气资源的评价。呼和湖凹陷大二段煤层埋深适中,是煤层气勘探开发有利层段;南二段煤层埋深多在2 000 m左右,但煤层气资源量最大,在以后的开发中应加强研究。通过与美国成功开发的含气盆地对比表明,呼和湖凹陷的煤层气潜力值得重视。
Using the well and seismic data,the occurrence and distribution of coal beds in Huhehu depression are predicted in this paper.Moreover,the thermal evolution degree of coal bed and measured gas abnormity are deter-mined,and combined with parameters of gas content,the resource prospect of coalbed gas is evaluated.The results indicated that the amount of coalbed gas resource of Huhehu depression is about 7.43×1011m3 and is far greater than that of the whole northeastern China evaluated by precursors.The depth of the Daer section is moderate,and it is advantageous section for exploratory development of coalbed gas.The depth of Naner section is mostly about 2000 m,but its resource quantity is the most,for which we should strengthen exploration research in future.The comparison with American coal-bearing basins where the coalbed gas has been exploited successfully shows that Huhehu depression is worth of recognition.
Using the well and seismic data,the occurrence and distribution of coal beds in Huhehu depression are predicted in this paper.Moreover,the thermal evolution degree of coal bed and measured gas abnormity are deter-mined,and combined with parameters of gas content,the resource prospect of coalbed gas is evaluated.The results indicated that the amount of coalbed gas resource of Huhehu depression is about 7.43×1011m3 and is far greater than that of the whole northeastern China evaluated by precursors.The depth of the Daer section is moderate,and it is advantageous section for exploratory development of coalbed gas.The depth of Naner section is mostly about 2000 m,but its resource quantity is the most,for which we should strengthen exploration research in future.The comparison with American coal-bearing basins where the coalbed gas has been exploited successfully shows that Huhehu depression is worth of recognition.
引文
[1]张建博,王红岩,赵庆波.中国煤层气地质[M].北京:地质出版社,2000:75-85.
[2]赵庆波,李五忠,孙斌,等.煤层气地质与勘探技术[M].北京:石油工业出版社,1999:10-53.
[3]王新民,傅长生,石.国外煤层气勘探开发研究实例[M].北京:石油工业出版社,1998:10-238.
[4]李建武.吐哈盆地煤层气开发情景分析[J].煤田地质与勘探,2002,30(5):25-27.
[2]赵庆波,李五忠,孙斌,等.煤层气地质与勘探技术[M].北京:石油工业出版社,1999:10-53.
[3]王新民,傅长生,石.国外煤层气勘探开发研究实例[M].北京:石油工业出版社,1998:10-238.
[4]李建武.吐哈盆地煤层气开发情景分析[J].煤田地质与勘探,2002,30(5):25-27.
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