基于声波方程的有限频伴随状态法初至波旅行时层析

Abstract
Figure/Table
References
Related Citation (14)

Download: PDF (5419 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract According to finite-frequency theory, for a single source-receiver pair, not only the media on the raypath but also those outside the ray affects the wave propagation. This kind of effect can be described by sensitivity kernel which is always calculated based on "wavepath" with low efficiency. While the adjoint-state method based on ray theory ignores the finite-frequency characteristics of wave propagation, which leads to poor imaging. In this paper, we propose a new approach which combines the adjoint-state method and finite-frequency theory. Numerical experiments using it in near-surface velocity structure inversion indicate that the proposed approach can achieve results with higher accuracy than the traditional nonlinear ray-based tomography method.

Key words： finite frequency adjoint-state method first-arrival traveltime tomography wavepath sensitivity kernel

Received: 02 December 2013

P631

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Xie Chun
	Liu Yuzhu
	Dong Liangguo
	Yang Jizhong

Cite this article:

Xie Chun,Liu Yuzhu,Dong Liangguo等. First arrival tomography with finite frequency adjoint-state method based on acoustic wave equation[J]. OGP, 2015, 50(2): 274-282.

URL:

http://www.ogp-cn.com/EN/ OR http://www.ogp-cn.com/EN/Y2015/V50/I2/274

[1]	Bishop T N,Bube K P,Cutler R T et al. Tomo-graphic determination of velocity and depth in lateral varying media. Geophysics,1985,50(4):903-923.
[2]	Harlan W S. Tomographic estimation of shear velocities from shallow cross-well seismic data. SEG Technical Pogram Expanded Abstracts,1990,9:86-89.
[3]	杨文采. 地球物理反演的理论与方法. 北京:地质出版社,1997.
[4]	Vasco D W,Majer E I. Wave-path travel-time tomography. Geophysics Journal International,1993,115(1):1055-1069.
[5]	刘玉柱,董良国,李培明等. 初至波菲涅耳体地震层析成像. 地球物理学报,2009,52(9):2310-2320.
	Liu Yuzhu,Dong Liangguo,Li Peiming et a1.Fresnel volume tomography based on the first arrival of the seismic wave. Geophysics, 2009,52(9):2310-2320.
[6]	Chavent G. Identification of functional parameters in partial differential equations. Identification of Parameters in Distributed Systems,1974(2):31-48.
[7]	Lailly P. The seismic inverse problem as a sequence of before-stack migrations. Conference on Inverse Scattering:Theory and Application,1983,206-220.
[8]	Tarantola A. Inversion of seismic reflection data in the acoustic approximation. Geophysics,1984,49(8):1259-1266.
[9]	Sei A,Symes W W. Gradient calculation of the travel-time cost function without ray tracing. SEG Technical Pogram Expanded Abstracts,1994,13:1351-1354.
[10]	Chavent G,Jacewitz C. Determination of background velocities by multiple migration fitting. Geophysics,1994,60(2):476-490.
[11]	Delprat F,Lailly P,Becache E et al. Reflection tomography:How to cope with multiple arrivals? SEG Technical Pogram Expanded Abstracts,1994,13:741-744.
[12]	Shen P,Symes W W,Stolk C. Differential semblance velocity analysis by wave-equation migration. SEG Technical Pogram Expanded Abstracts,2003,22:2132-2135.
[13]	Tromp J,Tape C,Liu Q. Seismic tomography,adjoint methods,time reversal and banana-doughnut kernels. Geophysics Journal International,2005,160(1):195-216.
[14]	王秀明,Serisni G,林伟军.利用谱元法计算弹性波场的若干理论问题.中国科学(G辑),2007,37(1):41-59.
[15]	谢春,刘玉柱,董良国等. 伴随状态法初至波走时层析. 石油地球物理勘探,2014,49(5):877-883.
	Xie Chun, Liu Yuzhu, Dong Liangguo et a1. First-arrival traveltime tomography based on the adjoint-state method. OGP,2014, 49(5):877-883.