AVO waveform data-driven high-resolution well-to-seismic fusion prestack inversion method

The invention discloses an AVO waveform data-driven high-resolution well-to-seismic fusion prestack inversion method. A high-resolution prestack inversion method is realized through a new well-to-seismic fusion mode of building a high-precision elastic parameter initial model based on AVO waveform driving. On one hand, an AVO waveform data- elastic parameter curve sample group representing different reservoir and fluid characteristics is established through AVO waveform clustering, and prestack inversion under seismic phase control is realized; and on the other hand, a common structure of theelastic parameter curves in the group is sampled through wavelet transform to establish an initial model, and high-resolution prestack inversion is realized. The method aims at solving a technical problems that in the prior art, when well-to-seismic prestack inversion is performed, a reservoir is thin, and the longitudinal resolution and the transverse resolution of fluid prediction are not high. 本发明公开了一种AVO波形数据驱动的高分辨率井震融