| 地震纵波技术预测煤层瓦斯富集区的探讨与实践 |
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| 引用本文： | 常锁亮,刘洋,赵长春,李国发,陈强.地震纵波技术预测煤层瓦斯富集区的探讨与实践[J].中国煤炭地质,2010(8):9-15. |
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| 作者姓名： | 常锁亮 刘洋 赵长春 李国发 陈强 |
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| 作者单位： | [1]中国石油大学（北京）资源与信息学院,北京102249 [2]山西山地物探技术有限公司,山西晋中030600 [3]阳泉煤业集团 ,山西晋中030600 [4]中国地质大学（北京）地球探测与信息技术学院,北京100083 |
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| 摘 要： | 基于国内外煤层瓦斯富集的岩石物理及地球物理响应的研究成果,提出了以煤层反射波振幅、频率及衰减等动力学特征变化为主要研究对象的地震纵波预测技术方案;探讨了利用叠后Gamma拟合声波约束反演、频谱分解属性分析和叠前AVO反演、弹性阻抗反演等纵波技术预测煤层瓦斯富集性的理论依据及实现方法。上述技术在沁水盆地进行了预测尝试,其获得的含气性预测成果与探井实测的瓦斯富集情况基本吻合,初步证明了上述纵波预测技术方法在开展煤层瓦斯富集区研究方面的可行性和有效性。
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| 关 键 词： | 煤层瓦斯 瓦斯富集性 纵波 反演技术 预测 |
Discussion and Preliminary Practice of Primary Wave Technology in Coal Seam Gas Enrichment Area Prediction |
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| Chang Suoliang,Liu Yang,Zhao Changchun,Li Guofa and Chen Qiang.Discussion and Preliminary Practice of Primary Wave Technology in Coal Seam Gas Enrichment Area Prediction[J].Coal Geology of China,2010(8):9-15. |
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| Authors: | Chang Suoliang Liu Yang Zhao Changchun Li Guofa and Chen Qiang |
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| Institution: | 1.School of Resources and Information,China University of Petroleum(Beijing),Beijing 102249;2.Shanxi Shandi Geophysical Prospecting Technology Co.Ltd.,Jinzhong,Shanxi 030600;3.Yangquan Coal Industry(Group) Co.Ltd.,Yangquan,Shanxi 045000;4.School of Geophysics and Geoinformation Systems,CUGB,Beijing 100083) |
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| Abstract: | Based on research findings of coal seam gas enrichment rock physics and geophysical response both home and abroad,put forward primary wave prediction technical scheme of to take dynamic characteristic variations of coal reflection amplitude,frequency and attenuation etc.as main subjects investigated,discussed theoretical foundation and implemental method of using primary wave technologies of poststack gamma-ray simulated acoustic wave constrained inversion,spectral decomposition attribute analysis and prestack AVO inversion,elastic impedance inversion etc.to predict coal seam gas enrichment.Above technologies have been tested in predictions in the Qinshui Basin,acquired gas potential results are basically agreed with gas enrichment results from exploratory well measured.Thus has preliminarily demonstrated the feasibility and effectiveness of the primary wave prediction technology in coal seam gas enrichment area study. |
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| Keywords: | coal seam gas gas enrichment primary wave inversion technology prediction |
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