Method and apparatus for detecting shallow water flow sands using converted shear waves

A method and apparatus for seismic detection of shallow drilling hazards, especially overpressured shallow waterflow sands. In one embodiment, a seismic survey is performed to obtain both compression and converted shear type seismic data. After processing, the seismic data is analyzed to identify po...

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Bibliographic Details
Main Authors ROSENQUIST MARK L, PELLETIER JOHN H, DWAN FA S, BRYNDZIA L. TARAS
Format Patent
LanguageEnglish
Published 30.10.2001
Edition7
Subjects
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Summary:A method and apparatus for seismic detection of shallow drilling hazards, especially overpressured shallow waterflow sands. In one embodiment, a seismic survey is performed to obtain both compression and converted shear type seismic data. After processing, the seismic data is analyzed to identify possible correlations between reflection events observable in the shear seismic data and reflection events observable in the compression seismic data. At depths of up to at least 3,500 feet below the sea floor, any such correlation is indicative of the presence of sands.
Bibliography:Application Number: US19990413411