论文信息 - A new travel time estimation method for horizontal strata

A new travel time estimation method for horizontal strata

• the order of velocities in the layer stack. Travel time vs velocity relates to the variance of velocities in the stack. If velocities have small variance, the normal hyperbolic equation will be satisfactory. If there are large velocity variations (like in the North Sea –clastic and carbonate layers), the increase will be noticeable. This increase will appear as an over-correction at longer offsets. Usually the 3 term NMO equation (fourth power term) is used to estimate the travel time. Likewise anisotropic strata also cause velocity variation with offset Different equations are developed to handle these conditions.

S. Treitel | M. Taner | M. Al-Chalabi

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