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- W1899824168 abstract "Conventional seismic data processing methods based on post-stack time migration have been playing an important role in coal exploration for decades. However, post-stack time migration processing often results in low-quality images in complex geological environments. In order to obtain high-quality images, we present a strategy that applies the Kirchhoff prestack time migration (PSTM) method to coal seismic data. In this paper, we describe the implementation of Kirchhoff PSTM to a 3D coal seam. Meanwhile we derive the workflow of 3D Kirchhoff PSTM processing based on coal seismic data. The processing sequence of 3D Kirchhoff PSTM includes two major steps: 1) the estimation of the 3D root-mean-square (RMS) velocity field; 2) Kirchhoff prestack time migration processing. During the construction of a 3D velocity model, dip moveout velocity is served as an initial migration velocity field. We combine 3D Kirchhoff PSTM with the continuous adjustment of a 3D RMS velocity field by the criteria of flattened common reflection point gathers. In comparison with post-stack time migration, the application of 3D Kirchhoff PSTM to coal seismic data produces better images of the coal seam reflections." @default.
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- W1899824168 date "2010-12-10" @default.
- W1899824168 modified "2023-10-10" @default.
- W1899824168 title "Prestack Kirchhoff time migration of 3D coal seismic data from mining zones" @default.
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- W1899824168 doi "https://doi.org/10.1111/j.1365-2478.2010.00932.x" @default.
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