A Prestack Reverse Time Depth Migration Imaging Method for Interwell Seismic Offshore Inclined Wells
A technology of cross-well seismic and depth migration, which is applied in seismology for well logging records, etc., can solve the problems that cannot meet the precision requirements of oil and gas development, and achieve the effects of fast calculation speed, high imaging precision and high calculation precision
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[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0017] Such as figure 1 As shown, the pre-stack reverse time depth migration imaging method for off-shore inclined well interwell seismic of the present invention uses the single-shot seismic record received at the receiving point, that is, the single-shot seismic record before stacking and imaging, and calculates that the diffraction point begins to occur The waveform during diffraction is divided into three parts: the establishment of the two-dimensional TTI medium migration model, the calculation of imaging conditions, and the reverse time depth migration imaging, which specifically includes the following steps:
[0018] 1. Collecting or field construction to collect seismic data between wells in inclined shafts;
[0019] Such as figure 2 As shown, the process of collecting cross-well seismic data in the embodiment of the present invention is as...
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