基于等温吸附的临兴地区8 9号煤层含气量预测
投稿时间:2017-05-17  修订日期:2017-05-17  点此下载全文
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作者单位E-mail
何云超 中国矿业大学北京地球科学与测绘工程学院 hyc813113@163.com 
赵石虎 中国矿业大学北京地球科学与测绘工程学院  
于腾腾 中国矿业大学北京地球科学与测绘工程学院  
倪冬 中国矿业大学北京地球科学与测绘工程学院  
张崇瑞 中国矿业大学北京地球科学与测绘工程学院  
中文摘要:煤储层含气量是煤层气勘探开发的重要地质参数,如何准确预测煤储层含气量是煤层气地质研究的关键问题。以临兴地区8 9号煤层为研究对象,基于煤岩等温吸附试验测试数据,分析了兰氏参数与温度、镜质体反射率之间的关系,探讨了含气饱和度与温度、埋深之间的相关关系,基于等温吸附理论建立了临兴地区8 9号煤层含气量预测模型,并对模型进行误差分析。结果表明:兰氏参数与镜质体反射率(Ro<2.5%时)呈指数相关关系,与温度呈线性相关,含气饱和度与埋深、温度具有较好的线性关系;建立的含气量预测模型具有一定的可靠性。
中文关键词:临兴地区  含气量  等温吸附  含气饱和度
 
Prediction of Gas Content in 8 9 Coal Seam of Linxing Area Based on Isothermal Adsorption
Abstract:The gas content of coal reservoir is an important geological parameter of coalbed methane exploration and development. How to accurately predict the gas content of coal reservoir is the key problem of coalbed methane geological research. Based on the data of isothermal adsorption test of coal and rock, the relationship between temperature and vitrinite reflectance was analyzed, and the relationship between gas saturation and temperature was discussed. And the relationship between the depth of the study, based on the isothermal adsorption theory to establish the Linxing area 8 9 coal gas content prediction model, and the error analysis of the model. The results show that the Lansian parameter is exponentially related to the vitrinite reflectance (Ro <2.5%), which is linearly related to the temperature. The gas saturation has a good linear relationship with the depth and temperature. The prediction model has good reliability.
keywords:Linxing area  gas content  isothermal adsorption  gas saturation
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