Estimation of effective compressibility and permeability of porous materials with differential acoustic resonance spectroscopy
- 出版日期：2007.
- 页数：1 online resource.
- 第一责任说明：Chuntang Xu.
- 分类号：a478 ; a630
- ISBN：9780549063964(e-book) :
MARC全文
62h0047106 20131202095636.0 cr an |||||||| 131023s2007 a fsbm |000|0 eng | 3267666 9780549063964(e-book) : CNY371.35 NGL eng NGL a478 ; a630 Xu, Chuntang. Estimation of effective compressibility and permeability of porous materials with differential acoustic resonance spectroscopy [electronic resource] / Chuntang Xu. 2007. 1 online resource. Description based on online resource; title from title page (viewed Oct. 23, 2013) Thesis (Ph.D.)--Stanford University, 2007. Includes bibliographical references. Interpreting the flow properties of saturated porous materials from their acoustic responses at low frequencies scale has been a goal of geophysics research for decades. This thesis describes Differential Acoustic Resonance Spectroscopy DARS), a robust acoustic method we have developed for studying the flow properties of porous materials at kilohertz frequencies. The work is subdivided into five parts: Construct a low-frequency laboratory measurement system； Establish measurement methodology； Measure and analyze laboratory measurements； Develop an analytical model for dynamic diffusion in porous media； Verify the analytical model with a finite-element numerical approach. The primary contribution of this study is that we estimate the effective compressibility of fluid-saturated porous media under a low-frequency, dynamic fluid acoustic load； we construct an analytical model linking the flow properties with the effective compressibility； and we propose a robust way to estimate the permeability of earth materials under dynamic flow conditions. The method is applied to a broad range of rock types. Geophysics ; Porous materials Research. ; Acoustic properties. Electronic dissertations local. aInternet resource. aCN b010001 http://pqdt.bjzhongke.com.cn/Detail.aspx?pid=BAAkRyNBTHs%3d 010001 Bs2735 rCNY371.35 ; h1 bs1310