| 凉水煤矿采用二维地震寻找第三系煤田 |
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| 引用本文： | 金秀芹.凉水煤矿采用二维地震寻找第三系煤田[J].吉林大学学报(地球科学版),2010(Z1). |
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| 作者姓名： | 金秀芹 |
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| 作者单位： | 吉林省煤田地质物探公司; |
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| 摘 要： | 凉水煤矿为第三系煤田,其特点是:主采煤层为褐煤,与围岩波阻抗差小;深层地层的层速度低,波阻抗差也比较小,深层反射条件差。针对此特点,在采集、处理环节采取了诸如混凝土砂浆封井、初至折射静校正、人工提取干扰等提高信噪比的措施,取得了比较好的勘查成果。
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| 关 键 词： | 速度分析 信噪比 复杂地区 |
Finding Tertiary Coalfield with Two-Dimensional Seismic at Liangshui Coalmine |
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| JIN Xiu-qin Jilin Province Coalfield Geological , Geophysical Exploration Company,Changchun ,China.Finding Tertiary Coalfield with Two-Dimensional Seismic at Liangshui Coalmine[J].Journal of Jilin Unviersity:Earth Science Edition,2010(Z1). |
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| Authors: | JIN Xiu-qin Jilin Province Coalfield Geological Geophysical Exploration Company Changchun China |
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| Institution: | JIN Xiu-qin Jilin Province Coalfield Geological and Geophysical Exploration Company,Changchun 130033,China |
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| Abstract: | Liangshui coalmine for the Tertiary coalfield,which is characterized by: the main lignite coal bed,and a small rock wave impedance difference.Deep stratum of low-velocity,wave impedance difference is small,poor conditions of deep-seated reflection.For this feature,in the collection,processing areas,such as concrete mortar encapsulation wells taken,first to the refraction static correction,manual extraction of interference measures to improve the signal to noise ratio,and obtain good exploration results. |
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| Keywords: | velocity analysis signal to noise ratio complicated area |
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