| 面元细分处理资料的分辨率定量评价 |
| |
| 引用本文： | 徐辉,张军华.面元细分处理资料的分辨率定量评价[J].物探化探计算技术,2010,32(1):59-63. |
| |
| 作者姓名： | 徐辉 张军华 |
| |
| 作者单位： | 1. 胜利油田物探研究院,山东,东营,257022
2. 中国石油大学,资源与信息学院,山东,东营,257061 |
| |
| 摘 要： | 以永新工区高精度采集的地震资料为例,对高精度勘探的面元细分方法及细分处理资料的分辨率进行了评价。首先给出了面元细分的方法及面元细分对地震资料分辨率的影响,介绍了现有的一些分辨率计算方法。对于纵向分辨率,主要从λ/4传统薄层分辨率和高截频二个方面进行了讨论;对于横向分辨率,从菲涅耳带半径、防空间假频、Lindsey分辨率定义、考虑偏移孔径的分辨率等四个方面进行了分析、比较。通过研究,得出了有一定借鉴意义的结论:①在现有常规检波器条件下,面元细分处理对地震资料的分辨率影响较小,其变化不大;②在单道记录信噪比已较高的情况下,想通过提高覆盖次数来提高资料的分辨率,其提升空间有限;③就横向分辨率而言,考虑偏移孔径的计算方法,结果比较准确;④对于东部地区,从性价比上考虑,覆盖次数150,200已能满足要求,太高的覆盖次数没有从本质上改进资料的质量。
|
| 关 键 词： | 面元细分 分辨率 覆盖次数 菲涅耳带半径 偏移孔径 |
THE QUANTITATIVE EVALUATION OF RESOLUTION FOR SEISMIC DATA PROCESSING BY BIN-DIVIDING |
| |
| XU Hui,ZHANG Jun-hua.THE QUANTITATIVE EVALUATION OF RESOLUTION FOR SEISMIC DATA PROCESSING BY BIN-DIVIDING[J].Computing Techniques For Geophysical and Geochemical Exploration,2010,32(1):59-63. |
| |
| Authors: | XU Hui ZHANG Jun-hua |
| |
| Institution: | XU Hui1,ZHANG Jun-hua2(1.Geophysical Prospecting Research Institute of Shengli Oilfield,Dongying 257022,China,2.College of Geo-Resource , Information,China University of Petroleum,Dongying 257061,China) |
| |
| Abstract: | This article analyzes the method of bin-dividing seismic data processing in high resolution seismic exploration and evaluates the resolution of processed seismic data in YongXin area. Firstly, we present the method of bin-dividing, introduce the effects of bin-dividing method and recommend some methods of resolution calculation. For vertical resolution, the main rules to evaluate the resolution are traditional laminar layer (λ/4) and high cutoff frequency. For horizontal resolution, there are a lot of evaluation rules, such as Fresnel zone radius, spatial alias, definition of Lindsey resolution, resolution of migration aperture, etc. Through our study, we can get some significant conclusions: ① Bin-dividing processing has little influence on resolution in the condition of conventional geophones; ② with high S/N in single trace, it's useless to enhance resolution by increasing fold;③ For horizontal resolution, the method based on migration aperture works better and ④ In east China area, the fold of seismic exploration between 150 and 200 is well considering exploration costs. High fold can not enhance the quality of seismic data essentially. |
| |
| Keywords: | bin-dividing resolution fold fresnel zone radius migration aperture |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
