影响声波全波列测井速度分析的因素剖析  

Factors with Influence on Velocity Analysis of Full Wave Sonic Logging

作　　者：沙振海 

机构地区：[1]铁一院集团甘肃铁道综合勘察院,甘肃兰州730000

出　　处：《地质与勘探》2012年第4期784-789,共6页Geology and Exploration

摘　　要：目前,速度分析是声波全波列测井提取纵、横波速度的必要流程。本文介绍了井场中的声波波形成分,提出了一种相似相关速度分析算法,并在其基础上深入研究了影响速度分析结果的关键因素,如带通滤波,窗口宽度,总叠加时间,以及低速地层等等。通过讨论分析,给出了这些处理参数在速度分析中的取值,它对精确提取岩石纵、横波速度有着重要的指导意义。Velocity analysis is an essential procedure in the processing flow for extracting rock velocity of P-wave and S-wave from full wave sonic logging data.This paper introduces the acoustic waveform component in the well field,suggests a similar correlation velocity analysis algorithm and studies the key factors which influence the results of velocity analysis,such as band-pass filter,window width,total time stack and low velocity layers.Through discussion and analysis,we gave the values of these procesing parameters in the velocity analysis.This may have very important guiding significance for extracting the rock velocity of P-wave and S-wave accurately.

关 键 词：速度分析 声波全波列测井 声波波形 相似相关算法 

分 类 号：P631[天文地球—地质矿产勘探]