Wavepath eikonal traveltime inversion: Theory
نویسندگان
چکیده
منابع مشابه
Traveltime computation with the linearized eikonal equation
Traveltime computation is an important part of seismic imaging algorithms. Conventional implementations of Kirchhoff migration require precomputing traveltime tables or include traveltime calculation in the innermost computational loop . The cost of traveltime computations is especially noticeable in the case of 3-D prestack imaging where the input data size increases the level of nesting in co...
متن کاملWave-equation traveltime inversion
This paper presents a new traveltime inversion method based on the wave equation. In this new method, designated as wave-equation traveltime inversion (WT), seismograms are computed by any full-wave forward modeling method (we use a finitedifference method). The velocity model is perturbed until the traveltimes from the synthetic seismograms are best fitted to the observed traveltimes in a leas...
متن کاملShort Note Traveltime computation with the linearized eikonal equation
Traveltime computation is an important part of seismic imaging algorithms. Conventional implementations of Kirchhoff migration require precomputing traveltime tables or include traveltime calculation in the innermost computational loop . The cost of traveltime computations is especially noticeable in the case of 3-D prestack imaging where the input data size increases the level of nesting in co...
متن کاملEfficient traveltime solutions of the acoustic TI eikonal equation
Article history: Received 19 November 2013 Received in revised form 22 June 2014 Accepted 6 November 2014 Available online 13 November 2014
متن کاملConstrained Traveltime Inversion Using Reflected Waves of Surface Shot Gathers
We formulated an approach to estimate parameters of a layered earth model such as interval velocity, reflector depth, and dip by inverting reflected traveltime with constraints on dipping directions and depth to reflectors. We applied the “shooting method” (Lines, Bourgeois and Covey, 1984) to calculate modeled reflection time. We derived an explicit expression of the Jacobian matrix. The effic...
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ژورنال
عنوان ژورنال: GEOPHYSICS
سال: 1993
ISSN: 0016-8033,1942-2156
DOI: 10.1190/1.1443514