Transcription of 1 Introduction to seismic data and processing
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1 Introduction to seismic data and processing
1 Introduction to seismic data and processingChapter seismic data and their acquisition, processing , and Sampled time series, sampling rate, and seismic amplitude and gain Phase and Hilbert Data format and quality control (QC) SummaryFurther readingThe discipline of subsurface seismic imaging, or mapping the subsurface using seismicwaves, takes a remote sensing approach to probe the Earth s interior. It measuresground motion along the surface and in wellbores, then puts the recorded data througha series of data processing steps to produce seismic images of the Earth s interior interms of variations in seismic velocity and density. The ground movements recorded byseismic sensors (such as geophones and seismometers onshore, or hydrophones andocean bottom seismometers offshore) contain information on the media s response tothe seismic wave energy that traverses them.
SSSSSSSS S0 Rn Sn/2 Rn/2 Sn R1 (a) (b) Figure 1.3 Cross-section views of (a) a common receiver gather and (b) a common midpoint (CMP) gather. acquisition geometry using dynamite or Vibroseis technology as sources and geophones as receivers. The real-world situation is much more complicated, with topographic variations,
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