Anisotropic Poroelasticity in a Rock With Cracks

机译：岩石中的各向异性姿势与裂缝

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Abstract >Deformation of a saturated rock in the field and laboratory may occur in a broad range of conditions, ranging from undrained to drained. The poromechanical response is often anisotropic, and in a brittle rock, closely related to preexisting and stress‐induced cracks. This can be modeled as a rock matrix embedded with an anisotropic system of cracks. Assuming microisotropy, expressions for three of the poroelastic coefficients of a transversely isotropic rock were derived in terms of the crack density tensor. Together with published results for the five effective elastic moduli, this provides a complete micromechanical description of the eight independent poroelastic coefficients of such a cracked rock. Relatively simple expressions were obtained for the Skempton pore pressure tensor, which allow one to infer the crack density tensor from undrained measurement in the laboratory, and also to infer the Biot‐Willis effective stress coefficients. The model assumes a dilute concentration of noninteractive penny‐shaped cracks, and it shows good agreement with experimental data for Berea sandstone, with crack density values up to 0.6. Whereas predictions on the storage coefficient and normal components of the elastic stiffness tensor also seem reasonable, significant discrepancy between model and measurement was observed regarding the off‐diagonal and shear components of the stiffness. A plausible model had been proposed for development of very strong anisotropy in the undrained response of a fault zone, and the model here placed geometric constraints on the associated fracture system. </abstract> </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”> <标题类型=“main”>摘要</标题> >现场饱和岩石的变形和实验室可能在广泛的条件下发生，从不达到欠流失的范围。多孔力学响应通常是各向异性的，并且在脆性岩石中，与预先存在和应激诱导的裂缝密切相关。这可以被建模为嵌入具有裂缝的各向异性系统的岩石矩阵。假设微观结构，在裂缝密度张量方面导出横向各向同性岩石的三个孔弹性系数的表达。与五种有效弹性模量的公开结果一起提供了这种裂纹岩石的八个独立孔弹性系数的完整微机械描述。获得相对简单的表达对于铜碎片孔隙压力张量，其允许人们在实验室中推断出免受不驱动的测量的裂缝密度张量，并且还推断生物卷发有效应力系数。该模型假设非交互式便士形裂缝的稀释浓度，它与Berea砂岩的实验数据显示出良好的一致性，裂缝密度值高达0.6。而对弹性刚度张量的储存系数和正常部件的预测也似乎是合理的，而是观察到模型和测量之间的显着差异，关于刚度的截止对角线和剪切部件。已经提出了一种卓越的模型，用于在断层区域的不推迟响应中发展非常强大的各向异性，并且这里的模型放置在相关的骨折系统上的几何约束。</ p> </摘要> </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15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=Wong Teng‐Fong&option=202" target="_blank" rel="nofollow">Wong Teng‐Fong;</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>Earth System Science Programme Faculty of ScienceThe Chinese University of Hong KongShatin Hong Kong;</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=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=elastic anisotropy&option=203" rel="nofollow">elastic anisotropy;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=rock physics&option=203" rel="nofollow">rock physics;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=earthquake mechanics&option=203" rel="nofollow">earthquake mechanics;</a> </p> <div class="translation"> 机译：孔弹性;弹性各向异性;岩石物理学;地震力学; </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/0704020652016.html">Anisotropic Poroelasticity in a Rock With Cracks</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wong Teng-Fong&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Wong Teng-Fong </a> <a href="/journal-foreign-34656/" target="_blank" rel="nofollow" class="tuijian_authcolor">Journal of Geophysical Research. 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<span> <a href="/journal-cn-4904/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 地球物理学报 </a> </span> <span> . 2021</span><span>,第012期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-28768_thesis/020222069671.html">具有定向随机裂缝岩石的非均匀各向异性随机介质模型</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=曾新吾&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 曾新吾</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张光莹&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张光莹</a> <span> <a href="/conference-cn-28768/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 中国地球物理学会第19届年会 </a> <span> <span> . 2003</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020315873736.html">孔、裂隙介质各向异性岩石物理特征研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=黄兰华&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 黄兰华</a> <span> . 2018</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061203481970.html">一种裂缝型储层各向异性岩石模量估算方法</a> <b>[P]</b> . <span> 中国专利： CN108983312B </span> <span> . 2019.09.24</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120100542970.html">一种含裂缝横向各向同性岩石电学性质各向异性计算方法</a> <b>[P]</b> . <span> 中国专利： CN109613068A </span> <span> . 2019-04-12</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130436352411.html">ROCK-CRACKING DEVICE, ROCK-CRACKING METHOD, ATTACHMENT FOR ROCK-CRACKING DEVICE, PRESSURE OIL FEEDER FOR ROCK-CRACKING DEVICE, AND WORKING VEHICLE FOR ROCK CRACKING</a> <b>[P]</b> . <span> 外国专利：  JP2007277916A </span> <span> . 2007-10-25</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：裂岩装置，裂岩方法，裂岩装置的附件，裂岩装置的压油器和裂岩的工作车辆 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130412214665.html">A system to soften, cause micro cracks, reduce the hardness, cracking and / or ore Breaking Rocks in the field of Mining, Mining exploitation processes of crushing, grinding of Minerals and Rocks, as well as for all kinds of Industrial sludge as material and / or Miners, Riles and rela You See.</a> <b>[P]</b> . <span> 外国专利：  CL2015002874A1 </span> <span> . 2016-06-10</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：用于软化，引起微裂纹，降低硬度，开裂和/或碎石的系统，用于采矿，矿山的破碎，矿物和岩石的粉碎开采工艺以及各种工业污泥作为原料和/或Miners，Riles和rela You See。 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130400059361.html">Rock crack evaluation method, rock evaluation method, and rock crack evaluation apparatus</a> <b>[P]</b> . <span> 外国专利：  JP6724404B2 </span> <span> . 2020.07.15</span> </div> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704025592075','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="" onclick="$('.journalsub-pop-up').hide()"> <p 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