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含垂直裂解隙PTL介质长波长等效正各向异性弹性常数 被引量:1

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摘要 针对PTL介质中存在定向排列的铅垂裂隙系统的组合模型,探讨在长波长情况下其等效正交各向异性弹性常数的计算方法。根据Backus方法并结合Hudson微裂隙理论,推出了PTL与EDA组合之等效正交各向异性弹性常数的计算公式,且在裂隙呈稀疏分布的假设前提下,导出了等效弹性常数的具体计算表达式,并进而用伪谱法对含垂直裂隙PTL介质的弹性波场进行了数值模拟。本文的理论研究及数值计算结果表明:用5个长波长等效PTL弹性常数和3个无量钢的裂隙柔量,就可描述等效正交各向异性介质力个独立的弹性常数。
出处 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2002年第C00期307-320,共14页 Chinese Journal of Geophysics
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参考文献18

  • 1Crampin S. A review of the effect of amisotropic layering on the propagation of seismic waves. Geophys. J. R. astr. Soc., 1977,49:9-27.
  • 2Backus G.Long-wave elastic anisotropy produced by horizontal layering. J. Geophys. Res., 1962,67:4427-4440.
  • 3Bush I and Crampin S. Observation of EDA and PTL anisotropy in shear-wave VSPs. In: 57^th Ann. Int. SEG Meeting. Expanded Abstracts. 1987,646-649.
  • 4Bush I and Crampin S. Paris Basin VSPs;case history establishing combinations of fine-layer(or lithologic) anisotropy and crack anisotropy from modeling shear wavefield near point singularities. Geophys. J. Int., 1991,107:433-447.
  • 5Hudson J A. Wave speeds and attenuation of elastic waves in material containing cracks. G eophys. J. R. astr Soc., 1981,64: 133-150.
  • 6Hudson J A. A higher order approximation to the wave propagation constants for a cracked solid. Geophys. J. R. astr. Soc., 1986,87: 265-274.
  • 7Hudson J A. Crack distributions which accout for a given seimic anistropy. Geophys. J. R. astr. Soc., 1991,104:517-521.
  • 8Crampin S. Effectiv anisotropic elastic constants for wave propagation through cracked solids. Geophys. J. R. astr. Soc., 1984, 76:135-145.
  • 9Schoengerg M and Douma J. Elastic wave propagation in parallel fractures and aligned cracked. Geophysical prospecting. 1988, 36:571-590.
  • 10Schoengerg M and Helbig K. Orthorhombic media:modeling elastic wave behavior in a vertically fractured earth. Geophysics, 1997,62:4427-4440.

二级参考文献3

  • 1傅旦丹,学位论文,1998年
  • 2侯安宁,石油物探,1993年,34卷,2期,36页
  • 3Bush I,第57届SEG年会论文集,1987年

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