| 煤层气储层孔渗性评价研究 |
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| 引用本文： | 何晓辉,赵荣,谢立志.煤层气储层孔渗性评价研究[J].中国煤炭地质,2011(11):52-56. |
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| 作者姓名： | 何晓辉 赵荣 谢立志 |
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| 作者单位： | 长江大学研究生学院;胜利油田黄河钻井公司; |
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| 摘 要： | 通过分析研究大量的辽河东部凹陷煤储层测井曲线可知,煤层气储层具有低体积密度、高声波时差、高补偿中子值、低自然伽马值、高电阻率值等特征;煤层孔隙度主要受煤的变质程度、埋藏深度、煤层厚度及显微组份等因素的控制。结合前人工作,给出了计算孔隙度和渗透率的方法。利用F-S方法,结合经验公式及达西定律推导得出的理论公式,对一些井进行了处理,得到了煤层处理剖面图。从剖面图上可看出,该区煤层的孔隙度和渗透率都很低,处理的孔隙度结果与测试结果基本吻合;另外,5号井煤层井段的单相注入压降测试结果表明其计算的渗透率也比较准确。
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| 关 键 词： | 孔隙度 渗透率 物性特征 测井解释 |
Appraisal Study on CBM Reservoir Pore Permeability |
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| He Xiaohui,Zhao Rong , Xie Lizhi.Appraisal Study on CBM Reservoir Pore Permeability[J].Coal Geology of China,2011(11):52-56. |
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| Authors: | He Xiaohui Zhao Rong Xie Lizhi |
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| Affiliation: | He Xiaohui1,Zhao Rong1 and Xie Lizhi2(1.Graduate School,Yangtze University,Jingzhou,Hubei 434023,2.Yellow River Drilling Company,Shengli Oilfield,Dongying,Shandong 257000) |
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| Abstract: | Based on a mass of coal reservoir well-logging traces analyses and research in the eastern Liaohe depression,demonstrated that the reservoir has characteristics of low bulk density,high sonic differential time,high compensated neutron,low gamma-ray,high resistivity values.Coal seam porosity is mainly controlled by factors of coal metamorphism degree,buried depth,seam thickness and macerals.Combined with available data,has worked out methods to estimate porosity and permeability.The theoretical formula deriv... |
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| Keywords: | porosity permeability physical property characteristics well logging interpretation |
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