scholarly journals Symplectic stereomodelling method for solving elastic wave equations in porous media

2013 ◽  
Vol 196 (1) ◽  
pp. 560-579 ◽  
Author(s):  
Dinghui Yang ◽  
Meixia Wang ◽  
Xiao Ma
Keyword(s):  
Porous Media ◽  
Elastic Wave ◽  
Wave Equations ◽  
Elastic Wave Equations

A Multi-Scale and Level Set Algorithm for the Inverse Problem of Wave Equation

2013 ◽  
Vol 275-277 ◽  
pp. 413-416
Author(s):  
Ying He ◽  
Chun Yan He
Keyword(s):  
Porous Media ◽  
Elastic Wave ◽  
Level Set ◽  
Wave Equations ◽  
Biot Theory ◽  
Saturated Porous Media ◽  
Parameter Recovery ◽  
Multi Scale ◽  
Elastic Wave Equations ◽  
Fluid Saturated Porous Media

In this paper, we construct the multi-scale and level set algorithm of the parameter recovery for the elastic wave equations in the fluid-saturated porous media. Firstly, based on the Biot theory, we apply the multi-scale method to simulate the propagation of 2-D elastic wave in fluid-saturated porous media. Secondly, the level set method is introduced to the general parameter estimation problem.

Reply by the authors to B. Gurevich

Geophysics ◽  
1996 ◽  
Vol 61 (4) ◽  
pp. 1232-1232
Author(s):  
N. Dai ◽  
A. Vafidis ◽  
E. R. Kanasewich
Keyword(s):  
Porous Media ◽  
Elastic Wave ◽  
Wave Equations ◽  
Velocity Structure ◽  
Combined Effect ◽  
Solid Matrix ◽  
The Past ◽  
The Earth ◽  
Elastic Wave Equations ◽  
Exploration Seismology

We thank B. Gurevich for interest shown in our paper. In exploration seismology, as noted by Dr. Gurevich, one can model effects in porous media by using the elastic wave equations with trial densities and velocities. Indeed we have, in the past, followed the approach discussed by Gurevich and modelled the earth with a single density and velocity structure in particular layers to simulate the combined effect of a fluid and a solid matrix on a number of occasions (Vafidis et al, 1992; Dai et al 1990) just to point out two papers. Our experience, particularly with higher frequency 3‐D data, is that the synthetic results never match field results and that more parameters are necessary to model partition of energy between different kinds of waves at the interfaces.

Staggered-Grid High-Order Differencemethod for the First-Order Elastic Wave Equations

2000 ◽  
Vol 43 (3) ◽  
pp. 441-449 ◽  
Author(s):  
Liang-Guo DONG ◽  
Zai-Tian MA ◽  
Jing-Zhong CAO
Keyword(s):  
Elastic Wave ◽  
Wave Equations ◽  
High Order ◽  
Staggered Grid ◽  
First Order ◽  
Elastic Wave Equations

A simple implementation of PML for second-order elastic wave equations

2020 ◽  
Vol 246 ◽  
pp. 106867 ◽  
Author(s):  
Mingwei Zhuang ◽  
Qiwei Zhan ◽  
Jianyang Zhou ◽  
Zichao Guo ◽  
Na Liu ◽  
...  
Keyword(s):  
Elastic Wave ◽  
Wave Equations ◽  
Second Order ◽  
Elastic Wave Equations ◽  
Simple Implementation
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