A TTI representation of a heterogeneous medium for finite-difference seismic wave simulation

Jiang, L.1; Zhang, W.2

2019

81st EAGE Conference and Exhibition 2019

London, United kingdom

EAGE Publishing BV

Since the computational time of FDM is proportional to the number of grid points, many higher-order and optimized schemes were developed to increase the spatial grid size while maintaining the dispersion error below predefined levels. However, mentioned techniques are applicable only to homogeneous media since large error due to the interfaces may arise when the large grid spacing is used. To solve this problem, various effective medium parameterization methods have been proposed. In our work, We develop a new TTI effective media parameterization method and analyze existing different effective media parameterization methods. Our tests show that the proposed TTI effective media parameterization method is better than other effective media parameterization methods and can be used with the higher-order scheme to utilize 3-4 PPW to produce satisfactory results.spacing is used. We develop a new TTI effective media parameterization method for.
© 81st EAGE Conference and Exhibition 2019. All rights reserved.

其他

EI

China Earthquake Administration[2017CESE0101]

20194307568480

EV Compendex

1.University of Science and Technology of China, China
2.Southern University of Science and Technology, China

Jiang, L.,Zhang, W.. A TTI representation of a heterogeneous medium for finite-difference seismic wave simulation[C]:EAGE Publishing BV,2019.