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基于慢度—时间相关的双源距全波列测井横波速度提取
引用本文:姜文龙,张晓予,谢向文,涂善波.基于慢度—时间相关的双源距全波列测井横波速度提取[J].水利水电技术,2016,47(2):115-118.
作者姓名:姜文龙  张晓予  谢向文  涂善波
作者单位:(黄河勘测规划设计有限公司,河南郑州450003)
摘    要:横波速度是计算岩体剪切模量的一个重要参数,在工程地质勘察中,常利用全波列声波测井获取横波速度。由于干扰以及信号采集方式的限制,全波列测井中横波波形较为模糊或叠加在纵波、斯通利波波形之上,横波速度的拾取变得十分的困难。文中运用慢度—时间相关法方法对全波列声波测井进行研究,并提出可行的横波识别方式,获得了可靠的横波速度。

关 键 词:全波列声波测井  横波速度  慢度—时间相关  
收稿时间:2015-07-09

Slowness-time coherence-based extraction of shear-wave velocity from dual detector full-waveform logging
JIANG Wenlong,ZHANG Xiaoyu,XIE Xiangwen,TU Shanbo.Slowness-time coherence-based extraction of shear-wave velocity from dual detector full-waveform logging[J].Water Resources and Hydropower Engineering,2016,47(2):115-118.
Authors:JIANG Wenlong  ZHANG Xiaoyu  XIE Xiangwen  TU Shanbo
Affiliation:(Yellow River Engineering Consulting Co., Ltd., Zhengzhou450003,Henan, China)
Abstract:As the shear wave velocity is an important parameter for calculating the shear modulus of rock body, it is usually to be obtained through the dual detector full-waveform logging during the engineering geological investigation concerned. Due to the limitations from interference and single collection mode, the waveform of the shear wave in the full-waveform logging is not so clear or superposed over transverse waveform and Stoneley waveform, and then the collection of it is quite difficult. Therefore, the method of slowness-time coherence is adopted herein to study the full-waveform logging, while a feasible mode of collecting the shear wave is proposed, with which a reliable shear wave velocity is obtained as well.
Keywords:full-waveform logging  shear wave velocity  slowness-time coherence    
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