1887

Abstract

Summary

This article discusses an effect of strong anisotropy influence on a form of P-waves travel-times. The character of non-hyperboloid NMO-corrections also is determined by elastic symmetry of rock strata in thick horizontal reflection surface with strong (triclinic) anisotropy. The algorithm for calculations of surface travel-times in layered shale medium with triclinic symmetry is presented. During investigation was found that symmetry of travel-times isochrones map of horizontally layered medium is strictly consistent with the elastic symmetry of shale layer. It is proved that isochrones map of non-hyperboloid correction has the same symmetry as the elastic constants. In the article is shown that azimuthal character of non-hyperboloid NMO-corrections also is strictly depends on elastic symmetry of rocks strata.

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/content/papers/10.3997/2214-4609.201902105
2019-05-15
2024-04-25
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