A synthetic interval velocity model was built and a CMP gather was modeled using a finite difference code (Figure 1)

synt-bob
Synthetic Model.
Figure 1 |

For this gather, a velocity analysis is performed to obtain the RMS velocity (equation 1). Figure 2 shows the rms velocity curve picked from the data, and Figure 3 shows a comparison of the interval velocity obtained by the methodology described above, the RMS velocity obtained from the velocity analysis, and the remodeled RMS velocity (= ).

This comparison shows that the remodeled RMS velocity is similar to the picked RMS velocity. This similarity prove that the method used works well.

scan-bob
Velocity analysis for the
first synthetic example. The curve corresponds to the picked
RMS velocity
Figure 2 |

compar-bob
Comparison of interval
and RMS velocities.
Figure 3 |

4/27/2000