| 摘要 |
A non-transitory program carrier device tangibly carrying computer executable instructions for creating clean stratigraphic seismic traces, the instructions being executable to implement: (a) selecting a first seismic trace beyond a seismic trace gap from a plurality of seismic traces collected parallel to a side of a seed fault; (b) calculating cross-correlation coefficients for the selected seismic trace with a next seismic trace for predetermined number of vertical shifts up and down; (c) applying a parabolic curve fit to each cross-correlation coefficient to obtain a sub sample shift between the selected seismic trace and the next seismic trace, and a score; (d) accumulating the sub-sample shift(s) between the selected seismic trace and the next seismic trace; (e) selecting the next seismic trace beyond the seismic trace gap from the plurality of collected seismic traces; (f) repeating steps (b) through (e) until the score is not greater than a predetermined threshold and there are no more seismic traces in the plurality of collected seismic traces; (g) extrapolating the accumulated sub-sample shifts across the seismic trace gap back to the seed fault to form a line or a surface; (h) calculating the clean stratigraphic seismic trace by stacking the plurality of collected seismic trace along the line or the surface on the side of the seed fault beyond the seismic trace gap; and (i) repeating steps (a) through (h) for another plurality of seismic traces collected on another side of the seed fault. |
