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首页> 外文期刊>Journal of geophysical research. Solid earth: JGR >Sensitivity of Seismic Attenuation and Phase Velocity to Intrinsic Background Anisotropy in Fractured Porous Rocks: A Numerical Study
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Sensitivity of Seismic Attenuation and Phase Velocity to Intrinsic Background Anisotropy in Fractured Porous Rocks: A Numerical Study

机译：地震衰减和阶段速度对裂缝多孔岩体内部背景各向异性的敏感性：数值研究

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Abstract > Many researchers have analyzed seismic attenuation and velocity dispersion due to wave‐induced fluid flow (WIFF) related to the presence of fluid‐saturated fractures embedded in an isotropic porous background. Most fractured formations do, however, exhibit some degree of intrinsic elastic and hydraulic anisotropy of the background, and the impact of which on the effective seismic properties remains largely unexplored. In this work, we extend a numerical upscaling procedure to account for the potential intrinsic elastic and hydraulic anisotropy of the background. To do this, we represent the background of a representative sample of the fractured formation of interest with an anisotropic poroelastic medium and apply a set of relaxation experiments to compute the effective anisotropic seismic properties. A comprehensive numerical analysis allows us to observe that, for samples containing hydraulically connected fractures, the anisotropic behavior of both P and S ?waves differs significantly from that observed for an isotropic background. The anisotropy of the stiffness of the background plays a fundamental role for WIFF between the fractures and the background as well as for WIFF between connected fractures. Conversely, the anisotropy of the background permeability affects the characteristic frequency, the angle dependence, and the magnitude of the effects related to WIFF between fractures and background. In addition, different correlations between hydraulic and elastic background anisotropy lead to different degrees of effective seismic anisotropy. Our results therefore indicate that accounting for the effects of intrinsic background anisotropy on WIFF is crucial for a quantitative interpretation of seismic anisotropy measurements in fluid‐saturated fractured formations. < </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：ID =“JGRB52361-ABS-ABS-0001”XML：Lang =“en”> <标题类型=“main”>抽象</ title> >许多研究人员已经分析了地震衰减和速度由于波浪引起的流体流动（WIFF）与嵌入各向同性多孔背景中的流体饱和骨折的存在相关的分散。然而，大多数裂缝形成表现出一定程度的背景的内在弹性和液压各向异性，并且在有效地震性质上的影响仍然很大程度上是未探斗的。在这项工作中，我们扩展了一个数字上升程序，以考虑背景的潜在内在弹性和液压各向异性。为此，我们代表具有各向异性孔弹性介质的骨折形成的代表性样本的背景，并应用一组松弛实验以计算有效的各向异性地震性能。综合数值分析使我们能够观察到含有液压连接骨折的样品，均为 P </ i>和 s的各向异性行为与各向同性背景观察到的波动显着不同。背景刚度的各向异性在裂缝和背景之间以及连接的骨折之间的猛击之间对WIFF的基本作用起着重要作用。相反，背景渗透率的各向异性影响了与裂缝和背景之间的效果有关的特征频率，角度依赖性和效果的大小。此外，液压和弹性背景各向异性之间的不同相关性导致不同程度的有效地震各向异性。因此，我们的结果表明，核算内在背景各向异性对WIFF的影响对于流体饱和裂缝形成中的地震各向异性测量的定量解释是至关重要的。 </ p> < </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>2017年第10期</span><b style="margin: 0 2px;">|</b><span>共19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=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=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=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>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> </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;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=intrinsic anisotropy&option=203" rel="nofollow">intrinsic anisotropy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=seismic anisotropy&option=203" rel="nofollow">seismic anisotropy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=numerical analysis&option=203" rel="nofollow">numerical analysis;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=poroelasticity&option=203" rel="nofollow">poroelasticity;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=modeling&option=203" rel="nofollow">modeling;</a> </p> <div class="translation"> 机译：内在各向异性;地震各向异性;数值分析;孔弹性;建模; </div> </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/0704020652240.html">Sensitivity of Seismic Attenuation and Phase Velocity to Intrinsic Background Anisotropy in Fractured Porous Rocks: A Numerical Study</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Barbosa Nicolas D.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Barbosa Nicolas D.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=German Rubino J.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">German Rubino J.,</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="/journal-foreign-34656/" target="_blank" rel="nofollow" class="tuijian_authcolor">Journal of Geophysical Research. 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auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：预测储层岩石内部地震速度压力敏​​感性的方法 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130409495283.html">method of predicting seismic velocity pressure sensitivity within reservoir rocks, computer system, computer program, and, computer program product</a> <b>[P]</b> . <span> 外国专利： <!-- --> BR112013006158A2 </span> <span> . 2017-06-27</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：储层岩石内地震速度压力敏​​感性的预测方法，计算机系统，计算机程序和计算机程序产品 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130420281199.html">METHOD OF PREDICTING THE PRESSURE SENSITIVITY OF SEISMIC VELOCITY WITHIN RESERVOIR ROCKS.</a> <b>[P]</b> . <span> 外国专利： <!-- --> MX2013002936A </span> <span> . 2013-08-29</span> </div> <p class="zwjiyix 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