Exponential asymptotically bounded velocity model: Part I — Effective models and velocity transformations
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- Igor Ravve
- 1Paradigm Geophysical, Gav-Yam Center No. 3, 9 Shenkar Street, P. O. Box 2061, Herzliya B 46120, Israel. E-mail: igorr@paradigmgeo.com; zvi@paradigmgeo.com.
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- Zvi Koren
- 1Paradigm Geophysical, Gav-Yam Center No. 3, 9 Shenkar Street, P. O. Box 2061, Herzliya B 46120, Israel. E-mail: igorr@paradigmgeo.com; zvi@paradigmgeo.com.
書誌事項
- 公開日
- 2006-01-01
- DOI
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- 10.1190/1.2196033
- 公開者
- Society of Exploration Geophysicists
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説明
<jats:title>Abstract</jats:title> <jats:p>A new compacted-sediment, vertical-velocity model that represents the effect of gradually increasing velocities with depth is proposed. An asymptotically bounded, exponential velocity model is defined by three intuitive parameters. For a given layer, the parameters are 1) the velocity, 2) its vertical gradient at the top interface, and 3) an upper-limit velocity value. Time-depth relations, velocity transformations, hyperbolic, and nonhyperbolic moveouts are derived. The entire vertical velocity profile is composed of a set of layers, where the velocity function for each layer is defined by the proposed model. This method provides a basis for describing the subsurface using a smaller number of thick layers rather than using the classical, linear velocity model.</jats:p>
収録刊行物
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- Geophysics
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Geophysics 71 (3), T53-T65, 2006-01-01
Society of Exploration Geophysicists
