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METHOD FOR CORRECTING COMMON MIDDLE POINT GATHER BY USING OFFSET FORMULA TO IMPLEMENT STACK IMAGING
METHOD FOR CORRECTING COMMON MIDDLE POINT GATHER BY USING OFFSET FORMULA TO IMPLEMENT STACK IMAGING
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机译：利用偏移量公式实现堆栈成像的中点校正方法
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摘要
The present invention provides a method for correcting a common middle point gather by using an offset formula to implement stack imaging, comprising: step 1: inputting seismic data; step 2: performing gather extraction on the seismic data; step 3: correcting each self-excitation and self-receiving seismic trace in a common middle point gather; step 3: correcting each non-zero offset distance seismic trace in the common middle point gather; step 4: correcting one common middle point gather; step 5: correcting all the common middle point gathers; and step 6: performing stack imaging on the sections obtained after the correction of all the common middle point gathers. According to the method for correcting a common middle point gather by using an offset formula to implement stack imaging, the self-excitation and self-receiving seismic trace and each non-zero offset distance seismic trace in the common middle point gather can be corrected into semicircular sections, and accurate stack imaging of the self-excitation and self-receiving seismic trace and each non-zero offset distance seismic trace in the common middle point gather can be implemented; the correction of all the common middle point gathers can be implemented, and accurate stack imaging of all the common middle point gathers can be implemented; and final stack imaging can be implemented.
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