槽波旅行时拾取数据合理性检测方法  

Study on test method of pickup data rationality of channel wave travel-time

作　　者：杜艳艳 冯磊[2] 余为维 Du Yanyan;Feng Lei;Yu Weiwei(No. 3 Geological Exploration Institute, Henan Bureau of Geo-Exploration & Mineral Development, Zhengzhou, Henan 451464, China;Institute of Resource & Environment, Henan Polytechnic University, Jiaozuo, Henan 454000, China;School of Geophysics and Information Technology, China University of Geosciences, Beijing, Haidian, Beijing 100083, China)

机构地区：[1]河南省地质矿产勘查开发局第三地质勘查院,河南省郑州市451464 [2]河南理工大学资源环境学院,河南省焦作市454000 [3]中国地质大学(北京)地球物理与信息技术学院,北京市海淀区100083

出　　处：《中国煤炭》2019年第8期36-39,49,共5页China Coal

基　　金：河南省自然科学基金(182300410125);河南省高校基本科研业务费专项资金资助(NSFRF170927)

摘　　要：介绍了透射法槽波地震勘探中槽波旅行时数据拾取合理性分析的有效方法。槽波旅行时数据是槽波勘探预测煤层厚度的关键。为了提高煤厚预测精度,利用开发的ISSTTA软件分析槽波旅行时拾取误差对层析成像造成的不良影响,利用槽波旅行时检测板等对拾取数据合理性进行检测,并校正槽波旅行时数据,减小拾取误差。结果表明,利用校正后的槽波旅行时数据进行槽波层析反演可以有效增强反演稳定性,从而提高煤厚预测精度。Effective analysis method of pickup data rationality of channel wave travel-time in transmission method channel wave seismic exploration was introduced. The travel-time data was the key point to predict the coal seam thickness by the channel wave exploration. In order to improve the prediction accuracy of coal seam thickness, the developed ISSTTA software was used to analyze the adverse effect of the travel-time pickup error on tomographic imaging, the rationality of the pickup data was tested by travel-time detecting board and other means, and the travel-time data was adjusted to reduce the pickup error. The results showed that the channel wave tomographic inversion performed with the adjusted travel-time data could effectively enhance the stability of the inversion and improve the prediction accuracy of the coal seam thickness.

关 键 词：透射槽波 煤层厚度 槽波旅行时 合理性检测 层析反演 地震勘探 

分 类 号：P631[天文地球—地质矿产勘探]