Biot-willis系数

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WebMar 10, 2024 · Biot Coefficient and Biot Modulus. The Biot coefficient, \(\alpha\), is defined as the ratio of the fluid volume gained (or lost) in a material element to the volume change of that element when the pore pressure is changed.It can be determined in the same drained test as that used to determine the drained bulk modulus, \(K\), of the material.Its range of … Web为了利用这些效应，多孔弹性多物理场接口包含一个应力张量表达式（作为体积应变的函数）和 Biot-Willis 系数。此外，还提供多孔弹性，多层壳多物理场接口，可以对每层具有不同材料属性的多层域（纸板、复合材料 …

Estimating Biot-Willis coefficient - qeye-labs.com

WebBiot,M.A.,Willis, D.G., 1957. The elastic coefficients of the theory of consolidation. Journal of Applied Mechanics 24, 594–601. Plona, T.J., 1980. ... 定义），为流体粘滞系数，为 … http://www.cage.uh.edu/rql/Oral%20Presentation_2005%20Meeting/patzek_oral.pdf fisherfolk meaning

CN110795808A - 一种脑环境参数确定装置、方法及电子设备

Web【摘要】：有效应力系数在地层压力预测和地层应力估算中是一项重要的参数,有效应力系数也称为Biot系数或Biot-Willis系数,特别是在地层压力和应力估算中,有效应力系数更是一个非常关键的参数。有效应力系数的估算在过去很长一段时间一直局限于实验室的测量,一些方法将有效应力系数看成是孔隙 ... WebBiot系数的值可以用于评估多孔介质的声学导性、热导性以及能量传输方面的性质。. 此外，Biot系数还可以帮助预测材料的动态应变特性以及其对外部振动的响应。. 对于多孔介质的研究，Biot系数是一个重要的指标，并且对于工程应用具有重要的意义。. 多孔介质 ... http://xbna.pku.edu.cn/article/2024/0479-8023/0479-8023-53-4-683.shtml fisher fm-90b

基于纵波速度计算多岩性有效应力系数的方法与流程

Web有效应力系数播报编辑锁定 ... 本词条缺少信息栏、概述图，补充相关内容使词条更完整，还能快速升级，赶紧来编辑吧！ Biot弹性常数至于水平主应力，对于构造平缓地区，其主要来源于上覆地层压力和地质构造应力两个部分。 ... WebJan 2, 2024 · 本发明涉及勘探地球物理技术领域，特别是涉及到一种基于纵波速度计算多岩性有效应力系数的方法。背景技术Biot和Willis(1957)发现低渗透性多孔介质(例如岩石)不适合应用Terzaghi(1943)的有效应力原理，提出了修正后的有效应力原理，由此引入有效应力系数的定义，即Pe＝Pc-nPp式中：Pc是围压,Pp是孔隙 ... canadian brewhouse vancouverWebFeb 18, 2024 · 摘要: Biot系数是流-固耦合理论的核心参数，但目前缺乏针对特定储层的准确获取Biot系数的推荐方法，为此通过室内试验对比研究了3种可用于中孔中渗砂岩储层的Biot系数测试方法——Cross-plotting法、排 … canadian brewhouse west edmonton

"WebA general treatment of Biot’s theory in the range of nonlinear material behaviour and large deformations can be found in Coussy [1991, 2004], where the theory is reformulated using a thermody-namics approach. Fluid inﬁltrated porous media consist of solid skeleton and ﬂuid material that occupies the porous space. " - Biot-willis系数

Biot-willis系数

WebAug 1, 2024 · A more practical and affordable method uses sonic log data to calculate dynamic Biot’s coefficient through the equation α= 1-K dry /K 0 (1) where K dry and K 0 are dry rock and effective mineral modulus, … http://www.xjishu.com/zhuanli/52/202411292081.html

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WebOct 24, 2016 · The Biot-Willis elastic coefficients for a sandstone. 意思是：. 对于砂岩Biot Willis弹性系数. 3. 评论. 分享. 举报. 2011-12-14 学习用英语怎么说 591. 2009-03-10 这样我们才能更好的学习，用英语翻译 4.

WebAug 12, 2024 · Biot孔隙介质的几个弹性系数.PDF,高等弹性动力学第5讲 Part A Biot孔隙介质的几个弹性系数胡恒山哈尔滨工业大学航天科学与力学系 2012年10月22 日石油勘 … WebOct 31, 2024 · The Biot number helps us answer the following question: How much will the temperature inside a body vary if we heat up a part of its surface? If the Biot number is …

Web物理探査. Elastic coefficients in the Biot theory (Biot coefficients) for fluid-saturated porous media are expressed by conventional elastic coefficients and porosity. Practical applicability of this theory is established by it. Derivation of Biot coefficients is generally performed by the deformation analysis in which the total stress is ... Web同时基于常规三轴压缩试验得到的力学参数,引入Biot系数这一参数来研究高温水冷处理后花岗岩内部孔隙在外荷载作用下的变形特征,分析探讨了应力诱发及高温水冷对花岗岩Biot …

WebRefresher of Biot’s static poroelasticity model Biot’s dynamic poroelastic model from the non-equilibrium ﬁltration theory Low frequency reﬂections from a plane interface between an elastic and an elastic ﬂuid-saturated layers Different asymptotic regimes of the low-frequency reﬂections Conclusions 12.05.05 – p.12/31

WebBiot theory is the basis to describe wave propagation in porous media, starting with Terzaghi law, Gassmann equation, and the static approach leading to the concept of … fisherfolk musicWebMay 14, 2024 · The subsurface rock formations may contain predominantly the intragranular matrix porosity in the sedimentary rocks and predominantly the fracture porosity in the nonporous crystalline rocks (Brace 1980, 1984; Merriam et al. 2007).The Biot or the … fisherfolk of jones islandWebA general treatment of Biot’s theory in the range of nonlinear material behaviour and large deformations can be found in Coussy [1991, 2004], where the theory is reformulated … canadian brewhouse windermereWebMay 30, 2014 · biot 孔隙介质流体胡恒山弹性系数高等弹性动力学第5讲PartBiot胡恒山哈尔滨工业大学航天科学与力学系2012年10月22日石油勘探经常需要孔隙介质岩石模型石油天然气存于孔隙岩石。 fisherfolk in tagalogWeb计算孔隙率. 首先计算孔隙率 por。. 在这个 2D 示例中，我们需要计算总面积和由计算域表示的面积。. 我们可以简单地把总面积作为一个变量：A_tot = L*H 来计算。. 为了确定孔隙空间的面积 A_por，我们可以在流域上对表达式 “ (1)” 进行积分。. 这可以通过使用 ... fisher folding patio chairWebMay 22, 2024 · 式中：Gf——流体的体积模量，GPa；Gs——基质的体积模量，GPa；αB——Biot‐Willis 系数。联合式（4）、式（5）、式（6）可得基质中流体渗流的控制方程为. 式中 ∂εvol/∂t——基质体积应变的变化率。可以将公式（8）等号右边项视为孔隙空间的收缩速率。 canadian brewhouse wing wednesdayhttp://sepwww.stanford.edu/public/docs/sep111/jim1/paper_html/node9.html fisherfolk needed new world