中国石油大学学报（自然科学版）2012，Vol.36Issue(5)：45-50,55,7.DOI:10.3969/j.issn.1673-5005.2012.05.008
地面微地震监测SET震源定位特性研究
Characteristics of source localization by seismic emission tomgraphy for surface based on microseismic monitoring
摘要
Abstract
The characteristics of seismic emission tomgraphy (SET) based on semblance calculation by numerical simulation were studied, which included the relationship between accuracy of SET localization and number of traces, signal-to-noise ratio ( SNR ) of signals, topology of traces' deployment. A criterion for choosing number of traces for surface microseismic monitoring was given by numerical simulation results and monitoring practice of about 20 wells' hydraulic fracturing. It is proved by theoretical study and monitoring practice that surface microseismic monitoring can determine parameters of hydraulic induced fractures, if the number of traces is large enough to satisfy the need for SNR threshold of detectable microseismic signals.关键词
地面微地震监测/Semblance/地震发射层析成像/信噪比阈值/水力压裂Key words
surface based microseismic monitoring/ Semblance/ seismic emission tomography/ signal-to-noise ratio threshold/ hydraulic fracturing分类
天文与地球科学引用本文复制引用
王维波,周瑶琪,春兰..地面微地震监测SET震源定位特性研究[J].中国石油大学学报（自然科学版）,2012,36(5):45-50,55,7.基金项目
国家自然科学基金面上项目(40872095) （40872095）
