Estimation of Fracture Compliance From Attenuation and Velocity Analysis of Full‐Waveform Sonic Log Data

机译：从全波形声波日志数据的衰减和速度分析估算骨折遵守

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Abstract > In fractured rocks, the amplitudes of propagating seismic waves decay due to various mechanisms, such as geometrical spreading, solid friction, displacement of pore fluid relative to the solid frame, and transmission losses due to energy conversion to reflected and transmitted waves at the fracture interfaces. In this work, we characterize the mechanical properties of individual fractures from <fi>P</fi> wave velocity changes and transmission losses inferred from static full‐waveform sonic log data. The methodology is validated using synthetic full‐waveform sonic logs and applied to data acquired in a borehole penetrating multiple fractures embedded in a granodioritic rock. To extract the transmission losses from attenuation estimates, we remove the contributions associated with other loss mechanisms. The geometrical spreading correction is inferred from a joint analysis of numerical simulations that emulate the borehole environment and the redundancy of attenuation contributions other than geometrical spreading in multiple acquisitions with different source‐receiver spacing configurations. The intrinsic background attenuation is estimated from measurements acquired in the intact zones. In the fractured zones, the variations with respect to the background attenuation are attributed to transmission losses. Once we have estimated the transmission losses associated with a given fracture, we compute the transmission coefficient, which, on the basis of the linear slip theory, can then be related to the mechanical normal compliance of the fracture. Our results indicate that the estimated mechanical normal compliance ranges from 1?×?10 ?13 to 1?×?10 ?12 m/Pa, which, for the size of the considered fractures, is consistent with the experimental evidence available. </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“main”XML：Lang =“en”XML：ID =“JGRB53337-ABS-ABS-ABS-0001”> <标题类型=“main”>摘录</标题> >在裂缝岩石中，传播的幅度由于各种机构，例如几何传播，固体摩擦，相对于固体框架的孔流体的位移，以及由于能量转换而导致的传输损耗，并且在裂缝接口处反射和透射波引起的各种机构，以及透射损耗。在这项工作中，我们将各个骨折的机械性能从<fi> p </ fi>波速变化和从静态全波形声音测量日志数据推断出来的传输损耗。使用合成全波形声音测井进行验证方法，并应用于嵌入在Granodioritic岩石中的钻孔渗透多重骨折中获取的数据。为了从衰减估计中提取传输损耗，我们消除了与其他丢失机制相关的贡献。从对钻孔环境的数值模拟的联合分析推断出几何扩展校正，以及在具有不同源 - 接收器间隔配置的多个采集中的几何扩展之外的衰减贡献之外的衰减贡献的冗余。从完整区域中获取的测量估计内部背景衰减。在骨折区域中，关于背景衰减的变化归因于传输损耗。一旦我们估计与给定骨折相关的传输损失，我们将根据线性滑移理论计算传动系数，然后可以与骨折的机械正常顺应性有关。我们的结果表明，估计的机械正常顺应性范围为1？×10 13 </ sup>至1？×10 ？12 </ sup> m / pa，其中大小考虑的骨折，与现有的实验证据一致。 </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-34677/'>《Journal of geophysical research. Solid earth: JGR》</a> <b style="margin: 0 2px;">|</b><span>2019年第3期</span><b style="margin: 0 2px;">|</b><span>共24页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Barbosa Nicolás D.&option=202" target="_blank" rel="nofollow">Barbosa Nicolás D.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Caspari Eva&option=202" target="_blank" rel="nofollow">Caspari Eva;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rubino J. Germán&option=202" target="_blank" rel="nofollow">Rubino J. Germán;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Greenwood Andrew&option=202" target="_blank" rel="nofollow">Greenwood Andrew;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Baron Ludovic&option=202" target="_blank" rel="nofollow">Baron Ludovic;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Holliger Klaus&option=202" target="_blank" rel="nofollow">Holliger Klaus;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Applied and Environmental Geophysics Group Institute of Earth SciencesUniversity of LausanneLausanne Switzerland;</p> <p>Applied and Environmental Geophysics Group Institute of Earth SciencesUniversity of LausanneLausanne Switzerland;</p> <p>CONICET Centro Atómico Bariloche ‐ CNEASan Carlos de Bariloche Argentina;</p> <p>Applied and Environmental Geophysics Group Institute of Earth SciencesUniversity of LausanneLausanne Switzerland;</p> <p>Applied and Environmental Geophysics Group Institute of Earth SciencesUniversity of LausanneLausanne Switzerland;</p> <p>Applied and Environmental Geophysics Group Institute of Earth SciencesUniversity of LausanneLausanne Switzerland;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> </p> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025591329.html">Estimation of Fracture Compliance From Attenuation and Velocity Analysis of Full‐Waveform Sonic Log Data</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Barbosa Nicolás D.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Barbosa Nicolás D.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Caspari Eva&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Caspari Eva,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Rubino J. 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