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TIME-LAPSE SEISMIC COMPARISONS USING PRE-STACK IMAGING AND COMPLEX WAVE FIELD COMPARISONS TO IMPROVE ACCURACY AND DETAIL
TIME-LAPSE SEISMIC COMPARISONS USING PRE-STACK IMAGING AND COMPLEX WAVE FIELD COMPARISONS TO IMPROVE ACCURACY AND DETAIL
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机译：使用叠前成像和复杂波场比较的时滞地震对比，以提高精度和细节
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摘要
A method, computer program product and system for improving the accuracy and detail in determining changes in properties associated with subsurface geological structures. A first and a second time-lapse seismic data taken for a first and a second seismic survey, respectively, are received. If no calibration for the first and second time-lapse seismic data are needed, then an absolute time-lapse comparison is made. In the absolute time-lapse comparison, the time-lapse seismic data taken at a depth level below a reference level is compared with time-lapse seismic data taken at the reference level. If, however, calibration is needed, then a residual time-lapse comparison is made. In the residual time-lapse comparison, the derived residual phase and amplitude differences at a depth level below the reference level are compared with the derived residual phase and amplitude differences at the reference level.
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