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Book Chapter

Analysis of High Resolution Seismic Data1

By
Herman C. Sieck
Herman C. Sieck
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George W. Self
George W. Self
2
McClelland Engineers, Inc., Houston, Texas 77081.
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Published:
January 01, 1977

Abstract

High resolution data analysis can provide the detail commonly absent in deep seismic shooting. Greater detail provides a means for seafloor mapping, subcrop mapping, and mapping of shallow structures, contours, and hydrocarbon accumulations and seeps. Accurate shallow mapping also offers a means to select a drilling site by providing data for a potential drilling and construction hazard map, and helps the engineer plan for the task by providing geotechnical information for foundation design.

High resolution geophysics should more properly be termed, high resolution acoustics or else continuous acoustic profiling. Acoustic systems provide analysis by using sound-generating devices, sound receivers, and graphic recorders which define the water depth and provide a cross-sectional display of the sea bottom and subsurface lithology. Commonly, more than one acoustic device is used simultaneously to achieve different data for different studies. Such a system is typically referred to as a multisensor acoustic system.

Different acoustic systems provide different data. Water depth systems define water depth for bathymetric mapping; tuned transducers define bubble clusters, marine flora, and fish accumulation; side-scan sonar defines bottom irregularities, outcrops, and bubble clusters; while acoustic subbottom profilers penetrate the seafloor to provide subsurface data. Of course, filtering and stacking improve resolution on some acoustic systems just as they improve resolution in deep seismic shooting.

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Contents

AAPG Memoir

Seismic Stratigraphy — Applications to Hydrocarbon Exploration

Charles E. Payton
Charles E. Payton
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American Association of Petroleum Geologists
Volume
26
ISBN electronic:
9781629812052
Publication date:
January 01, 1977

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