| 倾角曲率属性在煤层巷道识别中的应用 |
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| 引用本文： | 单蕊.倾角曲率属性在煤层巷道识别中的应用[J].煤田地质与勘探,2020,48(5):197-203. |
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| 作者姓名： | 单蕊 |
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| 作者单位： | 中煤科工集团西安研究院有限公司,陕西 西安 710077 |
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| 摘 要： | 煤炭智能精准开采需要构建高精度三维地质透明化模型，巷道资料动态融入地震资料解释为模型提供数据支撑。通过建立巷道地质模型进行正演模拟，分析巷道引起的地震特征差异。基于曲率属性原理，并将多种地震曲率属性分析技术应用于地震资料解释，指导实际数据中巷道识别。选取CJT煤田2号煤层作为研究对象，三维地震勘探得到高品质的地震数据体和多种属性体作为基础数据。分析发现倾角曲率属性沿层切片可以完整刻画巷道异常特征，所示巷道位置准确、边界清晰，具有较高的精度。研究表明，利用地震倾角曲率属性技术识别巷道的可行性和有效性，为检测和识别一些未知巷道提供参考依据，为煤炭精准开采提供地质保障。
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| 关 键 词： | 倾角曲率属性 巷道识别 属性分析 三维地震勘探 鄂尔多斯盆地移动阅读 |
| 收稿时间： | 2020-01-16 |
Application of the dip curvature attributes in the recognition of coal roadway |
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| Abstract: | The intelligent accurate coal mining needs to construct the high-precision and transparent 3D geological model, and the seismic data interpretation integrated into the dynamic roadway data provide data support for the model. The geological model of roadway is established and forward modeling is carried out to analyze the difference of seismic characteristics caused by a roadway. Based on curvature attribute principle, various seismic curvature attributes were applied to seismic data interpretation, guide the roadway recognition in the seismic data. The coal seam 2 of CJT coalfield was selected as the research object, and the high-quality seismic data and various attribute bodies were obtained from 3D seismic exploration were used as the basic data.. Analysis found that the along-layer slices of the dip curvature attributes could depict completely the characteristics of the roadway anomalies showed the accurate position of the roadway, the clear boundary, had the higher precision. The research showed the feasibility and the effectiveness of the seismic dip curvature attribute technique for the recognition of the roadway. It provides a basis for detecting and identifying unknown roadway and the geological guarantee for the precise coal mining. |
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