随着常规油气藏资源不断枯竭, 非常规油气藏的勘探开发已逐渐成为一种必然趋势,
从而使得微地震监测技术快速发展. 微地震事件的发生持续时间短, 声波频率高 …

Purpose. To put forward the concept of machine learning and deep learning approach in
Mining Engineering in order to get high accuracy in separating mine microseismic (MS) …

井下微震监测获得的地震记录往往包含大量的噪声, 记录信噪比很低. 有效地震信号的识别与
提取是进行后续地震定位等工作之前需要优先解决的问题. 经过研究发现 …

同步挤压S 变换是一种处理非平稳信号的新时频变换方法, 通过" 挤压" 信号的S 变换结果,
可以得到高分辨率的时频谱. 但是, 当信号的相位随时间呈非线性变化时, 同步挤压S …

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 …

Directional presplit blasting (DPB) technology for an innovative no-pillar mining approach is
introduced. First, a mechanical model is established to analyze crack initiation and …

Abstract The Synchrosqueezing S‐transform (SSST) is a novel approach for time‐frequency
(T‐F) representation of non‐stationary signals. By “squeezing” T‐F spectrum of the S …

This paper analyzes the relation between frequency attenuation of source wavelet and its
propagation distance. Based on seismic wave frequency attenuation compensation, we …

On account of working environment, downhole microseismic monitoring records usually
contain much noise, ie having low SNR (signal to noise ratio). Thus recognizing and …

Time–frequency analysis is one of the effective methods for seismic thin‐layer detection.
Conventional time–frequency analysis technology for seismic thin‐layer detection is …