Depth conversion of seismic data using velocity analyses
نویسندگان
چکیده
منابع مشابه
ime-to-depth conversion and seismic velocity stimation using time-migration velocity
The objective was to build an efficient algorithm 1 to estimate seismic velocity from time-migration velocity, and 2 to convert time-migrated images to depth. We established theoretical relations between the time-migration velocity and seismic velocity in two and three dimensions using paraxial ray-tracing theory. The relation in two dimensions implies that the conventional Dix velocity is the ...
متن کاملTime-to-depth conversion and seismic velocity estimation using time-migration velocity
The objective of this work is to build an efficient algorithm (a) to estimate seismic velocity from time-migration velocity, and (b) to convert time-migrated images to depth. We establish theoretical relations between the time-migration velocity and the seismic velocity in 1 Page 1 of 23 GEOPHYSICS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 3...
متن کاملSeismic velocity estimation and time to depth conversion of time-migrated images
We address the problem of time to depth conversion of time migrated seismic images and show that the Dix velocities estimated from time migration velocities are the true seismic velocities divided by the geometrical spreading of image rays. We pose an inverse problem: to find seismic velocities from Dix velocities and suggest two algorithms for solving this problem. One algorithm is based on th...
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Bridges, as an essential part of transportation system, play a special role in economy, politic and military all around the world. Serviceability of bridges is of high importance especially in emergencies, helping injured people and proportioning transportation after earthquakes. Earthquake regulation codes, normally suggest linear methods to conduct the analysis, and nonlinear analysis is bare...
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| A two{dimensional circularly symmetric lter, which is stable, not{aliased, compact and also suuciently accurate was designed to perform explicit downward extrap-olation of the seismic waveeeld by means of the one{way acoustic wave equation. In a rst step the design of a 1D lter was performed in the wavenumber domain by using Tchebychee approximation, while the lter was applied in the space do...
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ژورنال
عنوان ژورنال: Exploration Geophysics
سال: 1979
ISSN: 0812-3985,1834-7533
DOI: 10.1071/eg979187