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The phase relations between the first arrivals of compressional and shear waves, and their signification to full wave logging
Author(s): 
Pages: 146-151
Year: Issue:  2
Journal: APPLIED GEOPHYSICS

Keyword:  full wave loggingphase relationcompressional waveshear wave;
Abstract: This paper describes the three phenomena observed in full wave experiments: 1. The amplitudes (absolute value) of the first compressional and shear arrivals have the same variation rules; 2. The phases of the first compressional and shear arrivals are always opposite to each other; and 3. The amplitude variation periods of the first compressional and shear arrivals are 2π. A full analysis and interpretation points out that these phenomena should appear under the full wave logging condition. Hence,the basis of using phase diffrences to extract useful information from the full wave is found.
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