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| HFE在提高地震数据分辨率中的应用 | |
| 引用本文： | 谢裕江,郑金明,刘高.HFE在提高地震数据分辨率中的应用[J].国际地震动态,2012(3):28-33. |
| 作者姓名： | 谢裕江 郑金明 刘高 |
| 作者单位： | 1. 兰州大学土木工程与力学学院,兰州 730000;中国矿业大学(北京)地球科学与测绘工程学院,北京 100083 2. 兰州大学土木工程与力学学院,兰州 730000;西北核技术研究所,西安 710024 3. 兰州大学土木工程与力学学院,兰州 730000;西部灾害与环境力学教育部重点实验室,兰州 730000 |
| 摘 要： | 提高地震数据分辨率是地震勘探中获得高质量数据的关键,而分辨率与信噪比的相互制约关系是高分辨率处理的根本问题。本文基于反褶积的基本原理,采用压缩子波的方法,对原始地震数据进行高频拓展法(High Frequency Expanding,HFE)处理。通过测试子波压缩参数,分析研究可选参数对地震资料分辨率和保真度的影响,确定最佳处理参数,并应用于实际地震资料处理中。应用结果表明,HFE处理后的地震资料,其品质得到了明显的改善,处理后的剖面弱反射带层间细节反射更为丰富,横向变化清晰,频带变宽,分辨率得到了很大提高。 |
| 关 键 词： | HFE 分辨率 时频特性 薄互层 |
Application of high-frequency expanding technique in improving resolution of seismic data |
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| Xie Yujiang , Zheng Jinming , Liu Gao.Application of high-frequency expanding technique in improving resolution of seismic data[J].Recent Developments in World Seismology,2012(3):28-33. | |
| Authors: | Xie Yujiang Zheng Jinming Liu Gao |
| Institution: | 1) School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, China2) College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China3) Northwest Institute of Nuclear Technology, Xi＇an 710024, China4) Key Laboratory of Mechanics on Disaster and Environment in Western China, The Ministry of Education of China, Lanzhou 730000, China |
| Abstract: | Improving resolution of seismic data is the key to obtaining high quality results in seismic exploration. Interaction between resolution and SNR is the basic issue in high frequency processing. Based on the principle of deconvolution, adopting the method of the compressed wavelet, the raw seismic data has been processed by use of high-frequency expanding technique（HFE）, analyzed and studied the effect of optional parameters through testing the wavelet compression parameter, the effect of optional parameters is analysed, and then the best option parameters has been selected, and applied them to actual seismic data processing. The results show that after high-frequency expanding processing, the quality of the seismic data has been improved greatly, section details of the weak reflection layer are more abundant and the lateral alternation is clearer, the resolution of the seismic data is highly improved. |
| Keywords: | high frequency expanding resolution time-frequency characteristics thin interbeds |
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