| 影响声波全波列测井速度分析的因素剖析 |
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| 引用本文： | 沙振海.影响声波全波列测井速度分析的因素剖析[J].地质与勘探,2012,48(4):784-789. |
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| 作者姓名： | 沙振海 |
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| 作者单位： | 铁一院集团甘肃铁道综合勘察院,甘肃兰州,730000 |
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| 摘 要： | 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。
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| 关 键 词： | 岩脉 矿脉 侵位机制 应力场 大井锡多金属矿床 |
| 收稿时间： | 2012/3/20 0:00:00 |
| 修稿时间： | 2012/4/26 0:00:00 |
Factors with Influence on Velocity Analysis of Full Wave Sonic Logging |
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| SHA Zhen-hai.Factors with Influence on Velocity Analysis of Full Wave Sonic Logging[J].Geology and Prospecting,2012,48(4):784-789. |
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| Authors: | SHA Zhen-hai |
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| Institution: | Gansu integrated Engineering Investigation of Railway,Lanzhou,Gansu |
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| Abstract: | Abstract: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. |
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| Keywords: | velocity analysis full wave sonic logging acoustic waveform semblance correlation algorithm |
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