常旭^1,2,3,,
李政^1,2,4,
王鹏⁵,
姚振兴¹,
王一博^1,2,
王璐琛⁶,
桂志先⁵
1. 中国科学院地质与地球物理研究所, 北京 100029
2. 中国科学院页岩气与地质工程重点实验室, 北京 100029
3. 中国科学院地球科学研究院, 北京 100029
4. 中国科学院大学, 北京 100049
5. 长江大学地球物理与石油资源学院, 武汉 432100
6. 日本地球环境产业技术研究所, 日本东都 6190292

基金项目: 国家自然科学基金（41230317，41390455），中科院战略先导项目（XDB10030500）资助


详细信息

作者简介: 常旭, 研究员, 研究方向为地震波传播、地震成像、微地震监测与反演.E-mail:changxu@mail.iggcas.ac.cn

中图分类号: P631

收稿日期:2017-06-30
修回日期:2017-09-12
上线日期:2018-01-05

Micro-seismic location based on frequency attenuation compensation

CHANG Xu^1,2,3,,
LI Zheng^1,2,4,
WANG Peng⁵,
YAO ZhenXing¹,
WANG YiBo^1,2,
WANG LuShen⁶,
GUI ZhiXian⁵
1. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
2. Key Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
3. Institute of Earth Science, Chinese Academy of Sciences, Beijing 100029, China
4. University of Chinese Academy of Sciences, Beijing 100049, China
5. College of Geophysics and Petroleum Resource, Yangtze University, Wuhan 430100, China
6. Research Institute of Innovative Technology for the Earth, Kyoto 6190292, Japan


MSC: P631

--> Received Date: 30 June 2017
Revised Date: 12 September 2017
Available Online: 05 January 2018


摘要
摘要:本文分析了不同频率的震源子波在传播过程中频率衰减与传播距离的关系，提出了地震波频率衰减补偿的微地震定位方法.该方法通过对地震波频率衰减的补偿，间接获取微地震事件的道间时差，避免了微地震事件的信号识别与走时拾取，实现了对微地震事件的定位.本文提出了方法的基本原理和计算方法，并通过理论计算和误差分析表明该方法是合理的和有效的.
关键词: 震源定位/
地震波衰减/
频率衰减补偿

Abstract:This paper analyzes the relation between frequency attenuation of source wavelet and its propagation distance. Based on seismic wave frequency attenuation compensation, we propose a new micro-seismic location method. This method, which can avoid signal recognition and the pick-up of arrival time, indirectly obtains traveling time difference of the micro-seismic events from adjacent traces to achieve the location of micro-seismic events. We illustrate the basic principle and implementation approach in this paper and demonstrate the method is reasonable and effective through theoretical calculation and error analysis.
Key words:Source location/
Seismic attenuation/
Frequency attenuation compensation



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